Comments on the expage-201804 data expage.github.io Abbühl et al. (2009) Sample thickness assumed to be 4 cm ("sample thickness did not exceed 5 cm"). 10Be standard assumed to be S555. Sampling year assumed to be 2007. One group ID (all four samples are separate samples from one boulder). Abramowski (2004) Latitudes and longitudes based on map figures and Google Earth. 10Be standard assumed to be S555. Sampling year assumed to be 2002. Group ID based on publication. Abramowski et al. (2006) Latitudes and longitudes based on map figures and Google Earth. Sample density assumed to be 2.65 g/cm3. 10Be standard assumed to be S555. Sampling year assumed to be 2002 (based on Abramowski 2004). Group ID based on publication. Ackert et al. (2007) Sample density assumed to be 2.65 g/cm3. 10Be concentration derived from Ackert et al. (2011). 10Be standard traced via CRONUS calculator to 07KNSTD. Sampling year based on sample names. Group ID based on location (two samples >15 km apart). Ackert et al. (2008) Sample density assumed to be 2.65 g/cm3. 10Be standard assumed to be KNSTD. Sampling year based on sample names. Sample PBS-04-05 from the same boulder as PBS-08-11 (Kaplan et al. 2011). One group ID for all samples (all samples from one location). Ackert et al. (2011) Sample density assumed to be 2.65 g/cm3. Topographic shielding factor assumed to be 1. 10Be standard traced via CRONUS calculator and published ages to 07KNSTD. Sampling year based on sample names. Group ID based on publication. Five samples grouped with Ackert et al. (2007) samples. Akçar et al. (2007) 10Be concentrations and 10Be standard based on email contact with Naki Akçar. Sampling year assumed to be 2005. Samples TRK-8 and TRK-9 are separate samples from one boulder. Group ID based on sample locations and geomorphology. Akçar et al. (2008) 10Be concentrations and 10Be standard based on email contact with Naki Akçar. Sampling year assumed to be 2006. Group ID based on sample locations and geomorphology. Akçar et al. (2011) Sampling year assumed to be 2009. One group ID for all samples (all samples from one location). Akçar et al. (2014) Sampling year assumed to be 2012. Group ID based on sample location and geomorphology. Four samples grouped with Zahno et al. (2010) samples. Akçar et al. (2017) Sampling year assumed to be 2013. Group ID based on sample location and geomorphology. Alexanderson and Fabel (2015) Sample thickness in cm (wrong in original publication). 10Be concentrations and 10Be standard based on data from the authors (wrong in original publication). Samples ORM-1A and ORM-1B are separate samples from one boulder. Samples ORM-2A and ORM-2B are separate samples from one boulder. Group ID based on publication. Alexanderson and Håkansson (2014) Latitudes and longitudes based on map figures and Google Earth (coordinates in Table 3 are wrong). 10Be standard traced via CRONUS calculator and published ages to NIST_30300. Sampling year based on sample names. Group ID based on site number in publication. Altmeier et al. (2010) Sample thickness assumed to be 4 cm ("The samples were taken from the uppermost surface of the rocks, corresponding to a shielding depth of less than 5 cm"). Topographic shieldin factor assumed to be 1. Sampling year assumed to be 2008. Group ID based on sample location and geomorphology. Amidon et al. (2013) Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). Sampling year assumed to be 2011. Group ID based on publication. Amos et al. (2010) Sampling year assumed to be 2008. One group ID for all samples (all samples from one moraine). Andersen et al. (2018) Sampling year assumed to be 2016. Group ID based on sample location and geomorphology. Anderson et al. (2017) Sampling year assumed to be 1994 for NIST_27900 samples ("collected between 1992 and 1995"). Group ID based on sample location and geomorphology. Angel et al. (2016) 10Be conncentration for sample GA-1303FE multiplied by 10 based on published exposure age. Sampling year based on sample names. Group ID based on sample location and geomorphology. Anjar et al. (2014) Sampling year assumed to be 2008 based on sample names (most samples have "08" in the name). Group ID based on sample location (Site in Table 1). Aoki (2000) Latitudes, longitudes, and elevations based on map figures and Google Earth. Sample thickness assumed to be 5 cm. Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from SRTM 90 m dem based on Codilean (2006) and Li (2013). 10Be concentrations calculated from data in Table 1. 10Be standard assumed to be KNSTD. Sampling year assumed to be 1998. Group ID based on publication. Aoki (2003) Latitudes and longitudes based on map figures and Google Earth. Sample thickness assumed to be 5 cm. Sample density assumed to be 2.65 g/cm3. Topographic shielding factors based on angles in Table 1. 10Be concentrations calculated from data in Table 1. 10Be standard assumed to be KNSTD. Sampling year assumed to be 2001. Group ID based on publication. Aoki and Imamura (1999) Data based on information from Tatsuto Aoki. Topographic shielding factors calculated from SRTM 90 m dem based on Codilean (2006) and Li (2013). Sampling year assumed to be 1997. One group ID for all samples (all samples from one moraine). Arzhannikov et al. (2012) Sampling year assumed to be 2007 based on sample names. Group ID based on publication. Three samples grouped with Batbaatar and Gillespie (2016) samples. Augustinus et al. (2017) Topographic shielding set to 1 ("Shielding [---] was ≥0.999 for all samples"). Sampling year assumed to be 2015. Group ID based on publication. Badding et al. (2013) Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names. Group ID based on sample location and geomorphology. Bai et al. (2018) Sampling year assumed to be 2016. Group ID based on publication. Balbas et al. (2017) Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2015. Group ID based on publication. Balco and Schaefer (2006) 10Be concentrations and 10Be standards derived from Greg Balco. Sampling year assumed to be 2004. Group ID based on publication. Balco and Shuster (2009) Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names. Group ID based on sample location and geomorphology. One sample grouped with Brook et al. (1995a) samples. Balco et al. (2002) 10Be and 26Al concentrations and 10Be and 26Al standards derived from Greg Balco. Sampling year assumed to be 2000. Group ID based on publication. Balco et al. (2009) Sampling year based on sample names. Group ID based on publication. Balco et al. (2013) All sample data present in publication. Group ID based on sample location and geomorphology. Balco et al. (2014) Sampling year based on sample names. Samples 05-EG-118-BR and 05-EG-119-BR included in Balco and Shuster (2009). Group ID based on sample location and geomorphology. Balco et al. (2016) Sampling year based on sample names. Group ID based on sample location and geomorphology. Ballantyne and Stone (2015) Sampling year assumed to be 2013. Group ID based on publication. Ballantyne et al. (2006) Sample density assumed to be 2.65 g/cm3. Topographic shielding factor assumed to be 1. 10Be standard derived from Hughes et al. (2016) DATED-1 compilation. Sampling year assumed to be 2004. Group ID based on sample location and geomorphology. Ballantyne et al. (2007) Sample thickness back-calculated from thickness correction values in Table 4, assuming a sample density of 2.65 g/cm3. 10Be standard derived from Hughes et al. (2016) DATED-1 compilation. Sampling year assumed to be 2005. Group ID based on sample location and geomorphology (four separate groups). Ballantyne et al. (2008) Sample thickness back-calculated from thickness correction values in Table 4, assuming a sample density of 2.65 g/cm3. 10Be standard derived from Hughes et al. (2016) DATED-1 compilation. Sampling year assumed to be 2006. Group ID based on sample location and geomorphology. Ballantyne et al. (2009) Sampling year assumed to be 2007. Group ID based on publication (Table 3). Three samples grouped with Everest et al. (2006) samples. Ballantyne et al. (2011) Sampling year assumed to be 2009. Group ID based on sample location and geomorphology (four separate groups). Ballantyne et al. (2013) Sampling year assumed to be 2011. GT samples included in McCarroll et al. (2010). Group ID based on publication. Ballantyne et al. (2014) Sampling year assumed to be 2012. One group ID for all samples (all samples from one location). Ballantyne et al. (2017) 10Be concentration exponent error corrected. Sampling year assumed to be 2015. One group ID for all samples (all samples from one location). Barnard et al. (2004a) Latitudes and longitudes, sample thickness, and 10Be concentrations derived from Owen et al. (2008) supplementary dataset. 10Be standard derived from Owen and Dortch (2014) supplementary dataset. Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2002. Group ID based on sample location and geomorphology. Barnard et al. (2004b) Latitudes and longitudes based on map figures and Google Earth. Sample thickness derived from Owen et al. (2008) supplementary dataset. 10Be standard derived from Owen and Dortch (2014) supplementary dataset. Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2002. Group ID based on sample location and geomorphology. Barnard et al. (2006) Latitudes and longitudes based on map figures and Google Earth. Sample thickness derived from Owen et al. (2008) supplementary dataset. Sample density assumed to be 2.65 g/cm3. 10Be standard derived from Owen and Dortch (2014) supplementary dataset. Sampling year assumed to be 2004. Group ID based on sample location and geomorphology. Barnard et al. (2006) Sampling year based on sample names for LAM samples and assumed to be 2015 for POVE samples. Group ID based on publication. Baroni et al. (2017) Sampling year based on sample names. Group ID based on publication. Barrows et al. (2001) Latitudes and longitudes based on map figures and Google Earth. Sample density assumed to be 2.65 g/cm3. Topographic shielding factors assumed to be 0.9995 for all samples not included in Barrows et al. (2002). Sampling year assumed to be 1999. Group ID based on publication. Barrows et al. (2002) Some latitudes and longitudes based on map figures and Google Earth. Sampling year assumed to be 2000. Five samples included in Barrows et al. (2001). Group ID based on publication. Barrows et al. (2007) Latitudes and longitudes assumed to be -43.36 and 170.20 for all samples (the presented coordinates are incorrect). Sampling year assumed to be 2005. One group ID for all samples (all samples from one moraine). Barrows et al. (2013) Sampling year assumed to be 2011. Group ID based on sample location and geomorphology. Barth et al. (2016) Sampling year based on sample names. Group ID based on publication. Barth et al. (2018) Longitude for sample CRB-14-3 changed to -9.68098. Sampling year based on sample names. Group ID based on publication. Batbaatar and Gillespie (2016) Sample data derived directly (email) from Jigjidsurengiin Batbaatar. Group ID based on sample location and geomorphology. Nine samples grouped with Arzhannikov et al. (2012) samples. Batbaatar et al. (2018) Sampling year based on sample names for 1998 samples and assumed to be 2016 for all other samples. Group ID based on publication. Three samples grouped with Rother et al. (2014b) samples. Beel et al. (2016) All sample data present in publication. Group ID based on sample location and geomorphology. Benn et al. (2006) Sampling year assumed to be 2004. Group ID based on publication. Benson et al. (2004) Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). Sampling year based on sample names. Group ID based on sample location and geomorphology. Benson et al. (2007) UTM Northing coordinate of sample CL03-6 changed from 4835572 to 4385572 before conversion to latitute/longitude. 10Be concentrations based on isotope ratios and carrier/sample weights from Table 3. Sampling year based on sample names. Group ID based on publication. Bentley et al. (2006) Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2004. Group ID based on sample location and geomorphology. Bentley et al. (2007) Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2005. Group ID based on sample location and geomorphology. Bentley et al. (2010) Some latitudes and longitudes based on supplementary aerial photographs, normal photographs and Google Earth. Sample thickness assumed to be 5 cm based on thickness correction (0.96). Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2008. Group ID based on sample location and geomorphology. Bentley et al. (2011) Sampling year assumed to be 2009. Group ID based on sample location and geomorphology. Bentley et al. (2017) Sampling year assumed to be 2015. 13 samples grouped with Balco et al. (2016) samples. Group ID based on sample location and geomorphology. Berg et al. (2016) Sample thickness assumed to be 4 cm. Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2014. Group ID based on sample location and geomorphology. Bibby et al. (2016) Sample altitudes back-calculated from pressure in Table S2. Sampling year based on sample names. Group ID based on sample location and geomorphology. Bichler et al. (2016) Sampling year assumed to be 2014. Group ID based on publication. Bierman et al. (1999) Latitudes and longitudes based on map figure and Google Earth. Sample thickness assumed to be 4 cm. Sample density assumed to be 2.65 g/cm3. Topographic shielding factor assumed to be 1. 10Be standard assumed to be LLNL10000. 26Al standard assumed to be KNSTD. Sampling year assumed to be 1997. One group ID for all samples (all samples from one location). Bierman et al. (2015) Latitude, longitude, and elevation of sample PTD94-19 based on map figures and Google Earth. Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). Sampling year assumed to be 1994 (three samples have "94" in the sample name). Group ID based on sample location and geomorphology. Bierman et al. (in press) Sample density assumed to be 2.65 g/cm3. Topographic shielding factor assumed to be 1. Group ID based on sample location and geomorphology. Four samples grouped with Nelson et al. (2014) samples. Bigot-Cormier et al. (2005) Latitudes and longitudes based on figures and Google Earth. Sample thickness assumed to be 3 cm. Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from SRTM 90 m dem based on Codilean (2006) and Li (2013). Sampling year assumed to be 2003. Group ID based on sample location and geomorphology. Blard et al. (2013) Sample thickness from Blard et al. (2014): Quaternary Research 82. Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). Sampling year assumed to be 2011. Group ID based on sample location and geomorphology. Blomdin et al. (2016) All sample data present in publication. Group ID based on publication. Boex et al. (2013) Sampling year based on sample names. Group ID based on sample location and geomorphology. Böhlert et al. (2011) Sampling year assumed to be 2009. Group ID based on publication. Borchers et al. (2016) Sampling year based on sample names. Group ID based on sample location and geomorphology. Boxleitner et al. (2017) Sampling year assumed to be 2015. Group ID based on sample location and geomorphology. Bradwell et al. (2008) Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). Sampling year assumed to be 2006. Group ID based on sample location and geomorphology. Breckenridge and Phillips (2010) Sample thickness assumed to be 2 cm based on Balbas et al. (in press). Sample density assumed to be 2.65 g/cm3. Topographic shielding factor assumed to be 1. Sampling year based on sample names. One group ID for all samples (all samples from one location). Braucher et al. (2006) Latitudes and longitudes based on map figure and Google Earth. Sample thickness assumed to be 3 cm. Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). Sampling year assumed to be 2004. Group ID based on sample location and geomorphology. Briner (2003) Sample thickness assumed to be 3 cm. Sample density assumed to be 2.65 g/cm3. Topographic shielding factor assumed to be 1. 10Be standard assumed to be KNSTD. Sampling year based on sample names. One group ID for all samples (all samples from one location). Briner (2009) Sample PC04-9 latitude corrected for a typo in Table 1 (58.403 -> 59.403) Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). Sampling year based on sample names. Group ID based on publication. Briner et al. (2002) Sample thickness assumed to be 3 cm. Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from SRTM 90 m dem based on Codilean (2006) and Li (2013). 10Be and 26Al standards based on email contact with Jason Briner. Sampling year based on sample names. Group ID based on sample location and geomorphology. Briner et al. (2003) Sample thickness assumed to be 3 cm apart from sample SIV7-00-2 stated to be 5 cm thick. Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from Jonathan de Ferranti's 3" dem based on Codilean (2006) and Li (2013). 10Be and 26Al standards based on email contact with Jason Briner. Sampling year based on sample names. Group ID based on sample location and geomorphology. Briner et al. (2005a) Sample density assumed to be 2.65 g/cm3. 10Be and 26Al standards based on email contact with Jason Briner. Sampling year based on sample names. Group ID based on publication. Briner et al. (2005b) Sample thickness assumed to be 3 cm. Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from Jonathan de Ferranti's 3" dem based on Codilean (2006) and Li (2013). 10Be and 26Al standards based on email contact with Jason Briner. Sampling year based on sample names. Group ID based on sample location and geomorphology. Two samples grouped with Briner et al. (2003) samples. Briner et al. (2006) Sample thickness assumed to be 3 cm. Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from Jonathan de Ferranti's 3" dem based on Codilean (2006) and Li (2013). 10Be and 26Al standards based on email contact with Jason Briner. Sampling year based on sample names. Group ID based on sample location and geomorphology. Eight samples grouped with Briner et al. (2003) and Briner et al. (2005b) samples. Briner et al. (2007) Sample thickness from Balco et al. (2009) and assumed to be 3 cm for all other samples. Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from Jonathan de Ferranti's 3" dem based on Codilean (2006) and Li (2013). 10Be standard based on email contact with Jason Briner. Sampling year based on sample names. Group ID based on sample location and geomorphology. Two samples grouped with Briner et al. (2006) samples. Briner et al. (2008) Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names. Group ID based on sample location and geomorphology. Four samples grouped with Miller et al. (2006) samples. Briner et al. (2009) Sampling year based on sample names. Group ID based on sample location and geomorphology. Briner et al. (2013) Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names. One group ID for both samples (both samples from the same location). Briner et al. (2014a) All sample data present in publication. Group ID based on sample location and geomorphology. Briner et al. (2014b) Sampling year based on sample names. Group ID based on sample location and geomorphology. Briner et al. (2017) Sampling year assumed to be 2004 (10Be standard is KNSTD). One group ID for all samples (all samples from one location). Bromley et al. (2010) Sample thickness based on thickness correction factors and an assumed sample density of 2.65 g/cm3. 10Be standard assumed to be KNSTD based on reference to Todd et al. (2010). Sampling year based on sample names. Group ID based on publication. Bromley et al. (2015) Sampling year based on sample names. One group ID for all samples (all samples from one location). Bromley et al. (2016) Sampling year based on sample names. Group ID based on sample location and geomorphology. Brook et al. (1993) Latitudes and longitudes based on map figures and Google Earth. Sample density assumed to be 2.65 g/cm3. Topographic shielding based on sample dip angles presented in the appendix. 10Be standard assumed to be NIST_Certified. Group ID based on publication. All samples grouped with Brown et al. (1991) samples. Brook et al. (1995a) Latitudes and longitudes based on map figures and Google Earth. Sample thickness assumed to be 4 cm. 10Be standard assumed to be NIST_Certified. 26Al standard assumed to be KNSTD. Sampling year based on sample names. Three samples included in Brown et al. (1991) and Brook et al. (1993). Group ID based on publication. Brook et al. (1995b) Sample density assumed to be 2.65 g/cm3. 10Be standard assumed to be NIST_Certified. 26Al standard assumed to be KNSTD. Sampling year based on sample names. Group ID based on sample location and geomorphology. Brook et al. (1996) Latitudes, longitudes, sample thickness, sample density, topographic shielding, 10Be concentrations, and 10Be standard is derived from Goehring et al. (2008). 26Al standard assumed to be KNSTD. Sampling year assumed to be 1994. Group ID based on sample location and geomorphology. Brook et al. (2008) Latitudes and longitudes corrected for apparent degree/minute errors. Sample thickness back-calculated from thickness correction values in Table 1, assuming a sample density of 2.65 g/cm3. 10Be concentrations from Table multiplied by 10^6. 10Be standard is NIST_30600, based on email contact with Albert Zondervan. Sampling year assumed to be 2006. Samples PV-05, PV-07, and PV-09 are separate samples from one boulder. Group ID based on sample location and geomorphology. Brown et al. (1991) Latitudes and longitudes based on map figures and Google Earth. Sample density assumed to be 2.65 g/cm3. Topographic shielding based on sample dip angles presented in the appendix to Brook et al. (1993) 10Be standard assumed to be NIST_Certified. 26Al standard assumed to be KNSTD. Sampling year based on sample names. Group ID based on publication. Brown et al. (2002) Latitude, longitude, elevation, sample thickness, topographic shielding, and 10Be standard based on email contact with Erik Brown. Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names. One group ID for all samples (all samples from one moraine). Brugger (2007) Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). 10Be standard assumed to be KNSTD. Sampling year based on sample names. Group ID based on publication. Carcaillet et al. (2013) Sampling year based on sample names. Group ID based on publication (Figure 2). Two samples grouped with Wesnousky et al. (2012) samples. Carlson et al. (2007) 10Be concentration uncertainties based on email contact with Anders Carlson. Sampling year assumed to be 2005. Single sample group ID for all samples (all samples located >15 km apart). Carlson et al. (2014) Sampling year based on sample names. Group ID based on sample location and geomorphology. Ten samples grouped with Corbett et al. (2011) and Levy et al. (2012) samples. Carrasco et al. (2013) 10Be concentrations and 10Be standard derived from Domínguez-Villar et al. (2013). Sampling year based on sample names. Group ID based on sample location and geomorphology. Carrasco et al. (2015) Sampling year based on sample names. Group ID based on sample location and geomorphology. Chen et al. (2011) Sample thickness and topographic shielding factors estimated based on shielding factors in Table 1. 10Be standard assumed to be KNSTD. Sampling year based on sample names. One group ID for all samples (all samples from one location). Chen et al. (2015) Sampling year based on sample names. Group ID based on publication. Chen et al. (2018) 26Al standard assumed to be Z92-0222. One group ID for all samples (all samples from one location). Chenet et al. (2016) All sample data present in publication. Group ID based on publication. Chevalier et al. (2005) Sample latitudes, longitudes, and topographic shielding factors based on email contact with Marie-Luce Chevalier. Sample thickness, density, and 10Be standard derived from Chevalier et al. (2011). Sampling year assumed to be 2003. Group ID based on publication. Chevalier et al. (2011) Sample latitudes, longitudes, and topographic shielding factors based on email contact with Marie-Luce Chevalier. Latitudes and longitudes for "CK" samples derived from Chevalier et al. (2016). Sampling year assumed to be 2009. Group ID based on publication. Twelwe samples grouped with Owen et al. (2010) samples. Chevalier et al. (2016a) Sampling year assumed to be 2014. Group ID based on publication. Chevalier et al. (2018) Sampling year assumed to be 2015. Group ID based on sample location and geomorphology. Clark et al. (2003) Sample density assumed to be 2.65 g/cm3. 10Be standard assumed to be NIST_Certified. Sampling year based on sample names. Group ID based on sample location and geomorphology. Clark et al. (2009a) Sample density and topographic shielding factors are derived from Hughes et al. (2016) DATED-1 dataset. Sampling year based on sample names. One group ID for all samples (all samples from one location). All samples grouped with Ballantyne et al. (2007) sample. Clark et al. (2009b) Sample density, topographic shielding factors, and 10Be concentration uncertainties are derived from Hughes et al. (2016) DATED-1 dataset. Sampling year based on sample names. Group ID based on sample location and geomorphology. Cogez et al. (2018) Sampling year assumed to be 2015. Group ID based on publication. Colgan et al. (2002) Sample thickness estimated based on thickness correction values in Table 3. Sampling year assumed to be 2000. Group ID based on publication (Table 2). Colgan et al. (2006) Sample thickness assumed to be 4 cm. Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). 10Be standard assumed to be KNSTD. Sampling year based on sample names. Group ID based on sample location and geomorphology (four separate groups). One sample grouped with Schäfer et al. (2002) samples. Corbett et al. (2011) Latitudes and longitudes for 10 samples from Corbett et al. (2017a). Topographic shielding factors calculated from Jonathan de Ferranti's 3" dem based on Codilean (2006) and Li (2013). 10Be concentrations based on Be ratios and sample/carrier weights from Table 1. 26Al data from Corbett et al. (2017a). Sampling year assumed to be 2009. Group ID based on sample location and geomorphology. Corbett et al. (2013) Topographic shielding factors calculated from Jonathan de Ferranti's 3" dem based on Codilean (2006) and Li (2013). 10Be and 26Al concentrations based on Be and Al ratios and sample/carrier weights from data repositary. Sampling year assumed to be 2011. Group ID based on sample location and geomorphology. Corbett et al. (2015) 10Be and 26Al concentrations from Corbett et al. (2016b). 10Be and 26Al concentrations for samples GT022, GT023, GT025 from Corbett et al. (2017a). Sampling year assumed to be 2012. Group ID based on sample location and geomorphology. Corbett et al. (2016a) Altitude for KM95-001 changed (500 to 50) based on Google Earth. Latitude for PTD92-03 changed (66.14315 to 66.13315) based on Google Earth. Longitude for PTD94-13 changed (-65.08400 to -65.68400) based on Google Earth. Sample thickness derived from Marsella (1998) Appendix B. Topographic shielding factors calculated from sample dip angles reported in Marsella (1998) Appendix B plus from Jonathan de Ferranti's 3" dem based on Codilean (2006) and Li (2013). Sampling year based on sample names. Group ID based on sample location and geomorphology. 25 samples grouped with Marsella (1998) and Marsella et al. (2000) samples. Corbett et al. (2017b) Topographic shielding factors based on dip angles. Sampling year assumed to be 1994. All samples apart from SWR-7 are re-measurements of samples included in Larsen (1996). Group ID based on publication. Cossart et al. (2008) Sample thickness assumed to be 1 cm. Sample density assumed to be 2.65 g/cm3. 10Be concentrations for CLA samples derived from Cossart et al. (2012) with 10Be standard assumed to be NIST_27900. 10Be concentration uncertainty for sample GYR-04-01 based on 10Be concentration and published exposure age and uncertainty. 10Be standard for sample GYR-04-01 assumed to be NIST_Certified. Sampling year based on sample names. Group ID based on sample location and geomorphology. Cossart et al. (2012) Longitudes based on map figures and Google Earth. Sample thickness assumed to be 1 cm. Sample density assumed to be 2.65 g/cm3. 10Be standard assumed to be NIST_27900. Sampling year based on sample names. Group ID based on sample location and geomorphology. One sample grouped with Cossart et al. (2008) samples. Crest et al. (2017) Latitudes for samples BA17, BA18, BA20, CAL31 based on email contact with Yannick Crest. Altitude for sample CAC26 changed to 2180 to match location. Sample thickness assumed to be 3 cm. 10Be concentration for sample CAL31 based on email contact with Yannick Crest. Sampling year assumed to be 2015. Samples CAL29 and CAL30 are the same as samples I1bis and I2, respectively, in Delmas et al. (2008). Group ID based on sample location and geomorphology. Two samples grouped with Delmas et al. (2008) samples. Cronauer et al. (2016) All sample data present in publication. Group ID based on publication. Crump et al. (2017) All sample data present in publication. Group ID based on publication. Cuzzone et al. (2014) Sampling year assumed to be 2011 based on some sample names. Group ID based on sample location and geomorphology. Cuzzone et al. (2016) Sampling year assumed to be 2011 based on some sample names. Group ID based on sample location and geomorphology. Ten samples grouped with Cuzzone et al. (2014) samples. Darmody et al. (2008) Topographic correction factor assumed to be 1. 10Be concentrations and uncertainties divided by 1.14 and 10Be standard set to NIST_Certified based on information from Yingkui Li. 26Al standard assumed to be KNSTD. Sampling year assumed to be 2006. Group ID based on sample location and geomorphology (two separate groups). Darnault et al. (2012) Coordinates for samples Clap-17, Clap-18, Clap-19, Clap-20, Fer-01, Fer-02, Fer-03 based on Figure 4C and Google Earth. Sample thickness assumed to be 3 cm. Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2010. Group ID based on sample location and geomorphology. Darvill et al. (2015) Sampling year assumed to be 2013. Group ID based on publication. Davies et al. (2017) All sample data present in publication. Group ID based on sample location and geomorphology. Davis et al. (1999) Latitudes, longitudes, sample thickness, and 10Be and 26Al concentrations derived from Marsella (1998) appendix. Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from Jonathan de Ferranti's 3" dem based on Codilean (2006) and Li (2013). 10Be standard assumed to be LLNL10000. 26Al standard assumed to be KNSTD. Sampling year based on sample names. Group ID based on sample location and geomorphology. Davis et al. (2006) Sample thickness assumed to be 4 cm. Sample density assumed to be 2.65 g/cm3. Topographic shielding factor assumed to be 1. Sampling year based on sample names. Group ID based on sample location and geomorphology. Davis et al. (2015) Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). Sampling year assumed to be 1997 ("Samples were prepared at University of Vermont between 1997 and 2000"). Sample PTK-17 is a separate sample from the same boulder as sample PR-14-1 in Koester et al. (2017). Group ID based on publication (Table 1). Delmas et al. (2008) Sample thickness assumed to be 3 cm. Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). Sampling year assumed to be 2006. Samples I1bis and I2 are the same as samples CAL29 and CAL30, respectively, in Crest et al. (2017). Group ID based on sample location and geomorphology. Delmas et al. (2011) Sample thickness assumed to be 3 cm. Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names. Group ID based on sample location and geomorphology. Di Nicola et al. (2009) Topographic shielding factors back-calculated based on sample thickness and correction factors in Table 1. 10Be standard assumed to be S555. 26Al standard assumed to be ZAL94. Sampling year assumed to be 2005 ("During the austral summers of 2004/05 and 2005/06, samples were collected from various sites") Samples ABB6 and ABB7 are separate samples from one boulder. Group ID based on sample location and geomorphology. Di Nicola et al. (2012) Sampling year assumed to be 2009. Group ID based on sample location and geomorphology. Dielforder and Hetzel (2014) Sampling year based on sample names. Group ID based on publication. Domínguez-Villar et al. (2013) Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). Sampling year assumed to be 2011. Group ID based on sample location and geomorphology. One sample (DU-11) grouped with Carrasco et al. (2013) samples. Dong et al. (2014) Sampling year assumed to be 2012. Group ID based on publication. Dong et al. (2016) Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2014. Group ID based on publication. Dong et al. (2017a) Latitude for sample NQDGL15-01 modified (29.90056 -> 29.85056). Sampling year based on sample names. Group ID based on sample location and geomorphology. Dong et al. (2017b) All sample data present in publication. Group ID based on publication. Dortch et al. (2010a) Sampling year assumed to be 2008. Samples NU-15A and NU-15B are presumably separate samples from the same boulder. Group ID based on sample location and geomorphology. Dortch et al. (2010b) Sampling year assumed to be 2008. Samples with A/B in the name are presumably separate samples from the same boulder. Group ID based on sample location and geomorphology. Dortch et al. (2010c) Sampling year assumed to be 2008. Samples with A/B in the name are presumably separate samples from the same boulder. Group ID based on sample location and geomorphology. Dortch et al. (2013) Sampling year assumed to be 2011. Group ID based on publication. Doughty et al. (2015) Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names and assumed to be 2007 for "Kiwi" samples. Group ID based on sample location and geomorphology. 23 samples grouped with Schaefer et al. (2006) and Schaefer et al. (2015) samples. Douglass et al. (2005) Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from SRTM 90 m dem based on Codilean (2006) and Li (2013). 10Be concentrations and uncerrtainties from Table DR2 divided by 1.14 and 10Be standard set to NIST_Certified. Sampling year based on sample names. Samples with A/B in the name are presumably separate samples from the same boulder. Group ID based on publication. Douglass et al. (2006) Topographic shielding factors calculated from SRTM 90 m dem based on Codilean (2006) and Li (2013). 10Be concentrations and uncerrtainties from Table 1 divided by 1.14 and 10Be standard set to NIST_Certified. Sampling year based on sample names. Group ID based on publication. 26 samples grouped with Kaplan et al. (2004) samples. Dühnforth and Anderson (2011) 10Be standard set to 07KNSTD based on CRONUS calculator output and published exposure ages. Sampling year assumed to be 2009. Group ID based on sample location and geomorphology. Dühnforth et al. (2010) Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2008. Group ID based on sample location and geomorphology. Dyke et al. (2014) Sampling year based on sample names. Group ID based on sample location and geomorphology. Engel et al. (2011) Latitudes and longitudes based on map figures and Google Earth. Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). Sampling year assumed to be 2009. Group ID based on sample location and geomorphology (8 separate groups). Engel et al. (2014) Latitudes and longitudes based on map figures and Google Earth. Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2012. Group ID based on sample location and geomorphology. Engel et al. (2015) Latitudes and longitudes based on map figures and Google Earth. Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2013. Group ID based on sample location and geomorphology. Engel et al. (2017) Latitudes and longitudes based on Figure 1 and Google Earth. Sample density assumed to be 2.65 g/cm3. Topographic shielding factors based on sample aspect/dip and calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). Sampling year assumed to be 2015. Group ID based on publication. Eugster et al. (2016) Sampling year for "PE" samples based on sample names. Sampling year for "WP" samples assumed to be 2013. Group ID based on sample location and geomorphology. Everest and Kubik (2006) Latitudes and longitudes for "GG" samples based on map figures and Google Earth. Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). 10Be standard assumed to be S555. Sampling year assumed to be 2004. Group ID based on publication. Everest et al. (2006) Latitudes and longitudes based on map figures and Google Earth. Sample density assumed to be 2.65 g/cm3. 10Be standard assumed to be S555. Sampling year assumed to be 2004. One group ID for all samples (all samples from one location). Everest et al. (2013) All sample data present in publication. One group ID for all samples (all samples from one location). Fabel et al. (2002) All sample data derived from Stroeven et al. (2016). Samples Tjuolmma-920 and Tjuolmma-R-920 are the same as sample 98-20 in Stroeven et al. (2016). Group ID based on sample location and geomorphology. Fabel et al. (2004) Sample 97-22 longitude based on map figure and Google Earth. Sampling year based on sample names. Group ID based on sample location and geomorphology. Fabel et al. (2006) All sample data derived from Stroeven et al. (2016). Group ID based on sample location and geomorphology. Fabel et al. (2012) Sampling year based on sample names. Group ID based on publication. Fame et al. (2018) Sampling year based on sample names (2014 assumed for all Sc samples). Group ID based on sample location and geomorphology. Farber et al. (2005) Sample thickness assumed to be 2.5 cm. Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from SRTM 90 m dem based on Codilean (2006) and Li (2013). 10Be standard for the first 8 samples derived from the ICE-D production rate calibration database (http://calibration.ice-d.org/). 10Be standard for all other samples assumed to be KNSTD. Sampling year assumed to be 1998 based on some sample names. Group ID based on sample location and geomorphology. Favilli et al. (2009) Sampling year assumed to be 2007. Group ID based on sample location and geomorphology. Federici et al. (2008) Latitudes and longitudes based on map figures and Google Earth. Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2006. One group ID for all samples (all samples from one location). Federici et al. (2012) Sample thickness based on back-calculation using the thickness correction factor in Table 1. Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2010. Group ID based on publication. Fernández-Fernández et al. (2017) Sampling year assumed to be 2014 (AMS measurements carried out in August 2015) Group ID based on publication. Fink et al. (2006) Latitudes and longitudes based on map figures and Google Earth. Sampling year assumed to be 1995. Samples RL-9A and RL-9B are separate samples from the same boulder. Group ID based on sample location and geomorphology. Finkel et al. (2003) Latitudes and longitudes based on map figures and Google Earth. Sample density assumed to be 2.65 g/cm3. Sample thickness, topographic shielding factors, 10Be concentrations, and 10Be standard derived from Owen and Dortch (2014) supplementary dataset. Sampling year assumed to be 2001. Group ID based on sample location and geomorphology. Finlayson et al. (2011) Latitude for sample A2 changed from 56.8687 to 57.8687 (Typo in Table 1). Sample thickness based on back-calculation using the thickness corrections in Table 1. Sampling year assumed to be 2009. One group ID for all samples (all samples from one location). Finlayson et al. (2014) Sampling year assumed to be 2012. Group ID based on publication. Fjellanger et al. (2006) Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names. Group ID based on publication. Fogwill (2003) Latitudes and longitudes based on map figures and Google Earth. Sample thickness based on back-calculation using the depth shielding factor in Table 4.2. Sample density assumed to be 2.65 g/cm3. 10Be concentration calculated from isotope ratios and sample/carrier mass in Table 4.2. 10Be standard assumed to be S555. Sampling year assumed to be 2001. Group ID based on publication (Figure 4.6). Fogwill and Kubik (2005) Latitudes, longitudes, and sample thickness derived from Moreno et al. (2009). Sample density assumed to be 2.65 g/cm3. Topographic shielding factors derived from Fogwill (2003). 10Be concentration calculated from isotope ratios and sample/carrier mass in Table 1 (Fogwill and Kubik, 2005) and Table 4.2 (Fogwill, 2003). 10Be standard assumed to be S555. Sampling year based on sample names. One group ID for all samples (all samples from one location). Fogwill et al. (2004) Sample NL1-J22 latitude and longitude based on Google Earth. Sample thickness and density derived from Sugden et al. (2014). Topographic shielding factors for "SB" samples derived rom Sugden et al. (2014) and for sample NL1-J22 back-calculated from shielding correction in Table 1. 10Be standard assumed to be S555. 26Al standard assumed to be ZAL94. Sampling year assumed to be 2002. Group ID based on sample location and geomorphology (three separate groups). Fogwill et al. (2014) Latitudes and longitudes derived from the ICE-D database (http://antarctica.ice-d.org/). Sampling year assumed to be 2012. Group ID based on sample location and geomorphology. Fu et al. (2013) Topographic shielding factors derived directly from Ping Fu. Sampling year based on sample names. Group ID based on publication. Two samples grouped with Wang et al. (2006) samples. Fülöp et al. (2015) Sample density for Cameron samples assumed to be 2.65 g/cm3. Sampling year assumed to be 2013. Group ID based on publication. Ganyushkin et al. (2018) Sampling year assumed to be 2015. Group ID based on publication. García et al. (2012) Sampling year based on sample names. Group ID based on sample location and geomorphology. García et al. (2018) Sampling year based on sample names. Group ID based on sample location and geomorphology. Gayer et al. (2004) Latitudes, longitudes, sample thickness, and topographic shielding factors derived from Gayer et al. (2006). 10Be standard assumed to be NIST_Certified. Sampling year assumed to be 2002. Group ID based on sample location and geomorphology. Gheorghiu et al. (2012) Latitudes and longitudes based on map figures and Google Earth. Sampling year assumed to be 2010. Group ID based on publication. Gheorghiu et al. (2015) Latitudes and longitudes based on map figures and Google Earth. Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2013. Group ID based on sample location and geomorphology. Gianotti et al. (2008) Latitudes and longitudes based on map figures and Google Earth. Sample density assumed to be 2.65 g/cm3. 10Be standard assumed to be S555. Sampling year assumed to be 2006. Group ID based on sample location and geomorphology. Gilbert et al. (2017) Sample thickness back-calculated from thickness scaling factors using an assumed sample density of 2.7 g/cm3. Sampling year based on sample names. Group ID based on sample location and geomorphology. Gillespie et al. (2008) Latitudes and longitudes for some samples based on map figures and Google Earth. Sampling year assumed to be 2006. Group ID based on sample location and geomorphology. Group ID based on publication (Table 1). Gjermundsen et al. (2013) Latitude and longitude for sample Bjo based on map figures and Google Earth. 26Al data from Gjermundsen et al. (2015) Sampling year assumed to be 2011. Group ID based on sample location and geomorphology. Glasser et al. (2006) Latitudes and longitudes based on map figures and Google Earth. Sample density assumed to be 2.65 g/cm3. 10Be standard assumed to be S555. Sampling year assumed to be 2003 ("...field observations in March/April 2003"). Group ID based on sample location and geomorphology. Glasser et al. (2009) Sample thickness back-calculated based on thickness attenuation in Table 1 using a sample density of 2.7 g/cm3. Group ID based on sample location and geomorphology. Glasser et al. (2011) Sampling year assumed to be 2009 ("Mapping was checked during fieldwork in January 2009"). Group ID based on publication. Glasser et al. (2012a) Topographic shielding factors calculated from SRTM 90 m dem based on Codilean (2006) and Li (2013). Sampling year assumed to be 2010. Group ID based on publication. Glasser et al. (2012b) All sample data present in publication. Group ID based on publication. Glasser et al. (2014) Sample density assumed to be 2.65 g/cm3. Topographic shielding factor assumed to be 1. Group ID based on sample location and geomorphology. One sample (JRI35) grouped with Johnson et al. (2011) samples. Godbout et al. (2017) Sampling year based on sample names. Group ID based on publication. Goehring et al. (2008) Sample thickness back-calculated based on thickness correction factors in Table 1 and in the supplementary data. Sampling year based on sample names. Group ID based on sample location and geomorphology. 39 samples grouped with Brook et al. (1996) and Linge et al. (2006a) samples. Goehring et al. (2010) Coordinates, elevation, sample thickness, and topographic shielding for samples MKG-169 to MKG-173 based on email contact with Brent Goehring. Coordinates for samples MKG-04 and MKG-05 based on Figure 2 and Google Earth. Sampling year assumed to be 2008. Group ID based on publication. Goehring et al. (2011) Sample density assumed to be 2.65 g/cm3. 26Al standard assumed to be KNSTD. Sampling year assumed to be 2008. One group ID for all samples (all samples from one location). Goehring et al. (2012) Sampling year based on sample names. Group ID based on sample location and geomorphology. Golledge et al. (2007) Topographic shielding factor assumed to be 1. Sampling year assumed to be 2005. One group ID for all samples (all samples from one location). Goodfellow et al. (2014) Latitudes and longitudes based on map figures and Google Earth. Sampling year based on Stroeven et al. (2016) supplementary dataset. Group ID based on sample location and geomorphology (two separate groups). Gosse et al. (1995a) Latitudes and longitudes based on map figures and Google Earth. Sample density assumed to be 2.6 g/cm3 (Balco et al. 2008; Borchers et al. 2016). Topographic shielding factors for samples 138-I to 339-I derived from Balco et al. (2008) supplementary dataset. Topographic shielding factors for the remaining samples calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). 10Be concentrations derived from Balco et al. (2008) supplementary dataset for 9 samples. For the remaining 7 samples the 10Be concentrations are derived by multiplying the published concentrations in Gosse et al. (1995a) by 0.972 based on the ratio between the Balco et al. (2008) concentrations and the Gosse et al. (1995a) concentrations. 10Be concentration uncertainties assumed to be 3% of the concentrations for all samples. 10Be standard assumed to be KNSTD. 26Al concentrations and uncertainties derived from Borchers et al. (2016). 26Al standard assumed to be KNSTD. Sampling year based on sample names in Balco et al. (2008) supplementary dataset. Group ID based on sample location and geomorphology. Gosse et al. (1995b) Latitudes and longitudes based on map figures and Google Earth. Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). 10Be concentration uncertainty assumed to be 3% of the concentrations for all samples. 10Be standard assumed to be KNSTD. Sampling year based on sample names. Group ID based on publication. Gosse et al. (2006) Latitudes and longitudes based on map figures and Google Earth. Sample thickness for all samples with no stated thickness assumed to be 3 cm. Sample density assumed to be 2.65 g/cm3 Topographic shielding assumed to be 1. 10Be concentration uncertainty assumed to be 5% of the concentrations for all samples. 10Be standard assumed to be KNSTD. 26Al concentration uncertainty assumed to be 10% of the concentrations for all samples. 26Al standard assumed to be KNSTD. Sampling year based on sample names. Group ID based on sample location and geomorphology. Graf et al. (2007) Latitudes and longitudes derived from Graf et al. (2015). 10Be standard assumed to be S555. Sampling year based on sample names. Sample MO-04-01 from the same boulder as MON (Ivy-Ochs et al. 2006b). One group ID from Ivy-Ochs et al. (2006b) for all samples (all samples from one location). Graf et al. (2008) Topographic shielding factor back-calculated based on correction factors and sample thickness in Table 4.1. 10Be standard assumed to be S555. 26Al standard assumed to be ZAL94. Sampling year assumed to be 2006. Group ID based on sample location and geomorphology. Graf et al. (2015) Sampling year assumed to be 2008. Samples PAB-1 and PAB-2 are separate samples from one boulder. Group ID based on sample location and geomorphology. Grant (2016) 10Be standard for samples 68-BRATLIE and 69-IRGENS traced via CRONUS calculator to 07KNSTD. Group ID based on publication. Gribenski et al. (2016) All sample data present in publication. Group ID based on publication. Gribenski et al. (2018) All sample data present in publication. Group ID based on publication. Grin et al. (2016) Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2014. Group ID based on publication. Gualtieri et al. (2005) 10Be standard assumed to be KNSTD. 26Al standard assumed to be KNSTD. Sampling year assumed to be 2003. Group ID based on sample location and geomorphology. Guido et al. (2007) Sample thickness, 10Be concentration, and 10Be standard derived from Young et al. (2011). Sampling year assumed to be 2005. Group ID based on sample location and geomorphology (7 separate groups). Gump et al. (2017) Sampling year based on sample names. Group ID based on publication. Håkansson et al. (2007a) 23°W in Table 1 changed to 22°W to get the longitudes correct. Sample thickness back-calculated based on thickness correction in Table 1. 10Be standard assumed to be NIST_30300 based on information in Håkansson et al. (2009). Sampling year assumed to be 2005. One group ID for all samples (all samples from one location). Håkansson et al. (2007b) Latitudes and longitudes based on map figures and Google Earth. Sample thickness assumed to be 3 cm. Sample density assumed to be 2.65 g/cm3. Topographic shielding factor assumed to be 1. 10Be standard assumed to be S555. Sampling year assumed to be 2005. Group ID based on sample location and geomorphology. Håkansson et al. (2009) Latitudes and longitudes recalculated and checked against map figures and Google Earth as it seems like degree minutes have been mistaken as decimals. Sample thickness back-calculated based on thickness correction in Table 1. Topographic shielding factor assumed to be 1. Sampling year assumed to be 2006 based on sample names for some of the samples. Group ID based on sample location and geomorphology. Håkansson et al. (2011) Sampling year based on sample names. Group ID based on sample location and geomorphology. Ten samples grouped with Håkansson et al. (2009) samples. Hall et al. (2009) Latitudes and longitudes based on map figures and Google Earth. Sampling year assumed to be 2007. Group ID based on sample location and geomorphology. Hall et al. (2016) Sampling year based on sample names. Group ID based on publication. Hall et al. (2017) Longitude for sample PR-14-5 changed from -67.64819 to -67.84819. Sampling year based on sample names. One group ID for all samples (all samples from one location). Harbor et al. (2006) All sample data derived from Stroeven et al. (2016). Sample 19 is the same as sample 98-19 in Stroeven et al. (2016). Group ID based on sample location and geomorphology. One sample (19) grouped with Fabel et al. (2002) samples. Harrison et al. (2008) Sample Leg3 latitude and longitude based on location description and Google Earth. Sample density assumed to be 2.65 g/cm3. 10Be standard assumed to be S555. Sampling year assumed to be 2006. One group ID for all samples (all samples from one location). Harrison et al. (2010) Sampling year assumed to be 2008. Group ID based on sample location and geomorphology. Hättestrand et al. (2004) All sample data derived from Stroeven et al. (2016). One sample and one group ID. Hebenstreit et al. (2011) All sample data present in publication. Group ID based on sample location and geomorphology. Two samples grouped with Siame et al. (2007) samples. Hedrick et al. (2011) Sampling year assumed to be 2009. Group ID based on publication. Four samples grouped with Saha et al. (2018) samples. Hedrick et al. (2017) Sampling year assumed to be 2014. Group ID based on publication. Hein et al. (2009) Sampling year based on sample names. Group ID based on publication. Hein et al. (2010) Sampling year based on sample names. Group ID based on publication. Hein et al. (2011a) Sampling year based on sample names. 10Be concentration uncertainties for samples BC07-39 to BC07-59 divided by 10 based on published 10Be age uncertainties. Group ID based on sample location and geomorphology. Hein et al. (2011b) Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names. Group ID based on sample location and geomorphology. Four samples grouped with Fogwill et al. (2004) samples. Hein et al. (2016a) Sampling year based on sample names. Group ID based on sample location and geomorphology. 24 samples grouped with Bentley et al. (2010) samples. Hein et al. (2016b) Sampling year based on sample names. Group ID based on sample location and geomorphology. Three samples grouped with Bentley et al. (2010) samples. Hein et al. (2017) All sample data present in publication. Group ID based on publication. Four samples grouped with Kaplan et al. (2005) samples. Heine et al. (2009) All sample data present in publication. Group ID based on sample location and geomorphology. Henriksen et al. (2014) Sampling year based on sample names. Group ID based on publication. Heyman et al. (2011) 10Be concentrations calculated from isotope ratios in Supplementary data. Sampling year based on sample names. Group ID based on publication. Hippe et al. (2014) Sampling year assumed to be 2012. Group ID based on sample location and geomorphology. Hodgdon (2016) All sample data present in publication. Group ID based on publication. Hodgson et al. (2009) Sampling year based on sample names. Group ID based on publication. Hodgson et al. (2012) Latitude for sample DVRM5 changed from -82.4849 to -82.4685 based on Figure 6. Sampling year assumed to be 2010. Group ID based on sample location and geomorphology. Horiuchi et al. (2004) Topographic shielding factor calculated based on sample surface angle in Table 2. Sampling year assumed to be 2002. One group ID for all samples (all samples from one location). Hormes et al. (2008) Latitudes and longitudes based on map figures and Google Earth. 10Be standard assumed to be S555. Sampling year assumed to be 2006. One group ID for all samples (all samples from one location). Hormes et al. (2011) Latitudes and longitudes are derived from Hormes et al. (2013) for samples included in that publication. For all other samples latitudes and longitudes are based on map figures and Google Earth. Topographic shielding factors assumed to be 1. Sampling year assumed to be 2007. Group ID based on sample location and geomorphology. Hormes et al. (2013) Sampling year assumed to be 2011. Group ID based on sample location and geomorphology. Houmark-Nielsen et al. (2012) Sampling year based on sample names. Group ID based on sample location and geomorphology. Howle et al. (2012) 26Al concentrations estimated based on published 26Al exposure ages, 10Be production rates, and CRONUS calculator 10Be/26Al production rate ratio. 26Al standard assumed to be KNSTD. Sampling year assumed to be 2010. Group ID based on publication. Hu et al. (2017) Sampling year based on sample names. One group ID for all samples (all samples from one location). Huang et al. (2008) Latitudes and longitudes based on map figures and Google Earth. Topographic shielding factors assumed to be 1. 26Al standard assumed to be KNSTD. Sampling year assumed to be 2006. Group ID based on sample location and geomorphology. Huang et al. (2010) Latitude and longitude for sample 0124-4 based on map figures and Google Earth. Sample thickness assumed to be 3 cm. Topographic shielding factors assumed to be 1. Sampling year assumed to be 2008. Group ID based on sample location and geomorphology. Hubert-Ferrari et al. (2005) Latitudes, longitudes, and elevations based on map figures and Google Earth. Sample thickness assumed to be 3 cm. Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). 10Be standard assumed to be KNSTD. 26Al standard assumed to be KNSTD. Sampling year assumed to be 2003. One group ID for all samples (all samples from one moraine). Hughes et al. (2012) Sampling year based on sample names. Group ID based on publication. Hughes et al. (2014) Sampling year based on sample names. Group ID based on publication. Hughes et al. (2016) Sampling year assumed to be 2014. Group ID based on sample location and geomorphology. Hughes et al. (2018) Sampling year assumed to be 2013 ("...mapped in the field between 2007 and 2013"). Group ID based on sample location and geomorphology. Ivy-Ochs et al. (1995) Latitudes and longitudes based on map figures and Google Earth. Topographic shielding factors assumed to be 1. 10Be standard assumed to be S555. 26Al standard assumed to be ZAL94. Sampling year assumed to be 1993. Group ID based on publication. Ivy-Ochs et al. (1996) Latitudes and longitudes based on map figures and Google Earth. Topographic shielding factors derived from Ivy-Ochs et al. (2006b). 10Be standard assumed to be S555. 26Al standard assumed to be ZAL94. Sampling year assumed to be 1994. Group ID based on sample location and geomorphology. Ivy-Ochs et al. (1999) Latitudes and longitudes based on map figures and Google Earth. Topographic shielding factors calculated from SRTM 30/90 m dem based on Codilean (2006) and Li (2013). 10Be standard assumed to be S555. 26Al standard assumed to be ZAL94. Sampling year assumed to be 1997. One group ID for all samples (all samples from one moraine). Ivy-Ochs et al. (2004) Latitudes and longitudes based on map figures and Google Earth. Sample density assumed to be 2.65 g/cm3. 10Be and 26Al concentration uncertainties derived from Ivy-Ochs et al. (2006b). 10Be standard assumed to be S555. 26Al standard assumed to be ZAL94. Sampling year assumed to be 2002. One group ID for all samples (all samples from one location). Ivy-Ochs et al. (2006a) Latitudes and longitudes based on map figures and Google Earth. Topographic shielding factors calculated from sample dip and "shielding correction (topo only)" in Table 2. 10Be standard assumed to be S555. Sampling year assumed to be 2004. One group ID for all samples (all samples from one moraine). Ivy-Ochs et al. (2006b) Latitudes and longitudes based on map figures and Google Earth. Sample MON latitude and longitude based on Graf et al. (2007). Sample density assumed to be 2.65 g/cm3. 10Be standard assumed to be S555. 26Al standard assumed to be ZAL94. Sampling year assumed to be 2004. Sample MON from the same boulder as MO-04-01 (Graf et al. 2007). Group ID based on sample location and geomorphology. Two samples grouped with Ivy-Ochs et al. (1996) samples. Ivy-Ochs et al. (2008) Latitudes and longitudes derived from Reuther (2007). 10Be standard assumed to be S555. Sampling year based on sample names. Group ID based on sample location and geomorphology. Jansen et al. (2014) Sampling year derived from Stroeven et al. (2016). Group ID based on sample location and geomorphology. Johnsen et al. (2009) Sample thickness back-calculated based on thickness correction in Table 1. Sampling year known to be 2006. Group ID based on publication. Johnsen et al. (2010) Sample thickness back-calculated based on thickness correction in Table 2. Sampling year assumed to be 2005. Group ID based on publication. Johnson et al. (2008a) 26Al standard assumed to be KNSTD Sampling year tracked by references to be 2006. Group ID based on publication. One sample grouped with samples from Johnson et al. (2017). Johnson et al. (2008b) All sample data present in publication. One group ID for all samples (all samples from one location). Johnson et al. (2011) Sampling year assumed to be 2009. Group ID based on publication. Johnson et al. (2012) Sampling year assumed to be 2010. Group ID based on sample location and geomorphology. Johnson et al. (2014) All sample data present in publication. Group ID based on sample location and geomorphology. Johnson et al. (2017) All sample data present in publication. One group ID for all samples (all samples from one location) grouped with one sample from Johnson et al. (2008a). Jomelli et al. (2011) Sampling year assumed to be 2009. Group ID based on sample location and geomorphology. Jomelli et al. (2014) Sampling year assumed to be 2012. Group ID based on publication. Jones et al. (2015) Sampling year assumed to be 2013. Group ID based on sample location and geomorphology. Joy et al. (2014) Sampling year assumed to be 2012. Group ID based on publication. Joy et al. (2017) Sampling year assumed to be 2015. Group ID based on publication. Kaplan et al. (2001) Sample latitude and longitude corrected for samples CM80 and CM79, respectively (cf. Kaplan and Miller 2003: Fig. 5). Sample thickness assumed to be 3 cm. Sample density assumed to be 2.65 g/cm3. 26Al concentration uncertainty for sample CM40 (appears to be too low) derived from Kaplan and Miller (2003). 10Be standard assumed to be KNSTD. 26Al standard assumed to be KNSTD. Sampling year assumed to be 1999. Group ID based on sample location and geomorphology. Kaplan et al. (2004) Sample density assumed to be 2.65 g/cm3. 10Be standard assumed to be KNSTD. 26Al standard assumed to be KNSTD. Sampling year based on sample names. Group ID based on publication. Kaplan et al. (2005) Sample density assumed to be 2.65 g/cm3. 10Be concentrations and uncertainties divided by 1.14 and 10Be standard set to NIST_Certified to back-calculate original PRIME Lab concentrations. 26Al standard assumed to be KNSTD. Sampling year based on sample names. Group ID based on sample location and geomorphology. Kaplan et al. (2007) Sample density assumed to be 2.65 g/cm3. 10Be standard assumed to be S555 for samples measured at ETH and NIST_30600 for samples measured at SUERC. 26Al standard assumed to be ZAL94. Sampling year based on sample names. Group ID based on sample location and geomorphology. Four samples grouped with McCulloch et al. (2005) samples. Kaplan et al. (2008) 10Be standard assumed to be S555 for samples measured at ETH and NIST_30600 for samples measured at SUERC. Sampling year based on sample names. Group ID based on publication. Three samples grouped with McCulloch et al. (2005) samples. Kaplan et al. (2010) Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names. Group ID based on publication. Kaplan et al. (2011) Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names. Sample PBS-08-11 from the same boulder as PBS-04-05 (Ackert et al. 2008). Group ID based on publication. 9 samples grouped with Ackert et al. (2008) samples. Kaplan et al. (2013) Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names and assumed to be 2004 for "Kiwi" samples. Group ID based on sample location and geomorphology. Kaplan et al. (2016) Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names. Group ID based on sample location and geomorphology. 29 samples grouped with Strelin et al. (2014) samples. Kaplan et al. (2017) The "F-90-" samples are originally published in Hagen (1995: PhD thesis, Ohio State University). Latitudes and longitudes for "F-90-" samples based on Figure 2. Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names. Group ID based on sample location and geomorphology. Karhu et al. (2001) Sample density assumed to be 2.65 g/cm3. 10Be standard assumed to be S555. 26Al standard assumed to be ZAL94. Sampling year assumed to be 1999. Group ID based on sample location and geomorphology. Kelley et al. (2012) Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names. One group ID for all samples (all samples from one location). Kelley et al. (2013) Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names. Group ID based on sample location and geomorphology. Kelley et al. (2014) Sampling year based on sample names for "Pl" samples and assumed to be 2004 for "Kiwi" samples. Group ID based on sample location and geomorphology. Kelley et al. (2015) Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names. Group ID based on sample location and geomorphology. Kelly et al. (2004) Latitudes and longitudes based on map figures and Google Earth. 10Be standard assumed to be S555. Sampling year assumed to be 2002. One group ID for all samples (all samples from one location). Kelly et al. (2006) Latitudes and longitudes based on map figures and Google Earth. Sample density assumed to be 2.65 g/cm3. 10Be standard assumed to be S555. 26Al standard assumed to be ZAL94. Sampling year assumed to be 2004. Group ID based on sample location and geomorphology. Kelly et al. (2008) Sampling year assumed to be 2006. Group ID based on publication. Kelly et al. (2014) Sample density assumed to be 2.65 g/cm3. 10Be concentration updated based on erratum in Geology 45 (Dec 2017). Sampling year assumed to be 2012. Group ID based on publication. Kelly et al. (2015) Latitude adjusted (-13.9657 to -13.9457) for sample Q-137 based on Figure 2 and Google Earth. Sampling year assumed to be 2005 for samples measured against KNSTD and 2008 for samples measured against 07KNSTD. Samples Q-40 and Q-40a are separate samples from one boulder. Samples Q-44 and Q-44a are separate samples from one boulder. Samples HU08-01 (Phillips et al. 2016) are derived from the same boulder. Sample Q-46 is from the same boulder as sample HU08-02 (Phillips et al. 2016). Samples Q-83 and Q-83a are separate samples from one boulder. Group ID based on publication. Kerschner et al. (2006) Latitudes, longitudes, elevations, sample thickness, density, and 10Be standard derived from Moran et al. (2016b). 10Be standard assumed to be S555. Sampling year assumed to be 2004. Group ID based on sample location and geomorphology. Kiernan et al. (2004) Latitudes and longitudes based on map figures and Google Earth. Sample thickness assumed to be 3 cm. Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). Sampling year assumed to be 2002. Group ID based on publication. Kiernan et al. (2009) Latitudes and longitudes based on map figures and Google Earth. Sample thickness assumed to be 4.5 cm. Sampling year based on sample names. Group ID based on sample location and geomorphology. Kiernan et al. (2010) Latitudes and longitudes based on map figures and Google Earth. Sample thickness back-calculated from depth correction values in Table 1. Sampling year assumed to be 2008. Group ID based on publication. Kiernan et al. (2014) Latitudes and longitudes based on map figures and Google Earth. Sample thickness back-calculated from depth correction values in Table 1. Sampling year assumed to be 2012. Group ID based on publication. Kiernan et al. (2017) Latitudes and longitudes based on Figure 7 and Google Earth. Sample thickness back-calculated from depth correction values in Table 1. Sampling year assumed to be 2015. Group ID based on publication. Kirkbride et al. (2014) Latitudes and longitudes based on map figures and Google Earth for "LCI" and "LCO" samples. Sampling year assumed to be 2012. Group ID based on sample location and geomorphology. Koester et al. (2017) Sampling year assumed to be 2015. Sample PR-14-1 is a separate sample from the same boulder as sample PTK-17 in Davis et al. (2015). Group ID based on sample location and geomorphology. PR samples grouped with PTK-17 in Davis et al. (2015). Koffman et al. (2017) All sample data present in publication. Group ID based on sample location and geomorphology. Three samples grouped with Putnam et al. (2013a) samples. Kohut (2011) Sampling year assumed to be 2009. Group ID based on publication. Kong et al. (2009a) Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2007. Group ID based on publication. Kong et al. (2009b) Sample thickness assumed to be 2.5 cm. Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2007. 26Al standard assumed to be Z92-0222. Sampling year assumed to be 2007. Group ID based on sample location and geomorphology. Kong et al. (2010) Sampling year assumed to be 2003. Group ID based on sample location and geomorphology. All samples grouped with Huang et al. (2008) samples. Koppes et al. (2008) Latitudes and longitudes based on map figures and Google Earth. 10Be standard based on email contact with Michele Koppes. Sampling year based on sample names. Group ID based on sample location and geomorphology. Kronig et al. (in press) All sample data present in publication. Group ID based on sample location and geomorphology. Kuhlemann et al. (2008) Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2006. Group ID based on sample location and geomorphology. Kuhlemann et al. (2009) Latitudes and longitudes based on map figures and Google Earth. Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2007. Group ID based on sample location and geomorphology. Kuhlemann et al. (2013a) Latitudes and longitudes based on map figures and Google Earth. Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2011. Group ID based on sample location and geomorphology (five separate groups). Kuhlemann et al. (2013b) Sample thickness back-calculated from thickness scaling factor in Table 1, assuming a sample density of 2.65 g/cm3. Sampling year assumed to be 2011. Group ID based on sample location and geomorphology. Laabs et al. (2007) Sample density derived from Laabs et al. (2009). 10Be standard assumed to be KNSTD. Sampling year assumed to be 2005. Group ID based on publication. Laabs et al. (2009) 10Be concentration exponent typo corrected for sample SFA-11. 10Be standard assumed to be KNSTD. Sampling year assumed to be 2007. Group ID based on publication. Laabs et al. (2011) Sampling year based on sample names on some of the samples. Group ID based on publication. Laabs et al. (2013) Sampling year assumed to be 2011. Group ID based on publication. Landvik et al. (2003) Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names. Group ID based on sample location and geomorphology. Landvik et al. (2013) Sampling year based on sample names. Group ID based on sample location and geomorphology. Two samples grouped with Gjermunsen et al. (2013) samples. Lane et al. (2014) Latitudes and longitudes based on map figures and Google Earth. Sampling year assumed to be 2012. Group ID based on sample location and geomorphology. Larsen (1996) Sample coordinates derived from Corbett et al. (2017b). Topographic shielding factors based on dip angles derived from Balco et al. (2008) and Corbett et al. (2017b). 10Be concentrations calculated from isotope ratios and sample/carrier weight. 10Be standard based on direct information from Marc Caffee. 26Al standard assumed to be KNSTD. Samples SAF-B-10 and SAF-B-11 are separate samples from one boulder. Group ID based on sample location and geomorphology. Larsen et al. (2012) Sample thickness back-calculated from thickness correction in Table 1. Sampling year based on sample names. Group ID based on sample location and geomorphology. Larsen et al. (2014) Sampling year based on sample names. Group ID based on sample location and geomorphology. Larsen et al. (2016) Sampling year based on sample names. Group ID based on publication. Three samples grouped with Möller et al. (2010) samples. Lasserre et al. (2002) Latitudes and longitudes based on map figures and Google Earth. Sample thickness assumed to be 4 cm. Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). 10Be standard assumed to be KNSTD. 26Al standard assumed to be KNSTD. Sampling year assumed to be 2000. One group ID for all samples (all samples from one location). Le Roux et al. (2009) Sample thickness and density based on Schwartz et al. (2017) (samples P16-1, P16-2, P17, P3). Sampling year assumed to be 2007. One group ID for all samples (all samples from one location). Le Roy (2012) Sampling year assumed to be 2010. Group ID based on sample location and geomorphology. Le Roy et al. (2017) Sampling year assumed to be 2010. Group ID based on publication. Lee et al. (2014) Sample density assumed to be 2.65 g/cm3. 10Be standard assumed to be 07KNSTD (CRONUS generated exposure ages fits published exposure ages). Sampling year assumed to be 2012. Group ID based on publication. Leonard et al. (2017) Sampling year based on sample names and assumed to be 2011 for SCO- and SCR- samples. Group ID based on sample location and geomorphology. Lesnek and Briner (2018) Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names. Group ID based on sample location and geomorphology. Levy et al. (2012) Latitudes adjusted for samples LL0906 to LL0911 based on Figure 3 and Google Earth. Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names. Group ID based on sample location and geomorphology. Levy et al. (2014) Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2010 based on "LL" sample names. Group ID based on publication. Levy et al. (2016) Sampling year assumed to be 2014. Group ID based on publication. Two samples grouped with Goehring et al. (2010) samples. Leydet et al. (2018) Sampling year based on sample names. Group ID based on publication. Li et al. (2005) All sample data derived from Stroeven et al. (2016). Sample 13 is the same as sample S-02-19 in Stroeven et al. (2016). Group ID based on sample location and geomorphology. Li et al. (2009) Latitudes and longitudes based on photos and Google Earth. Sample density assumed to be 2.65 g/cm3. Topographic shielding factor assumed to be 1. Sampling year based on sample names. 10Be standard assumed to be NIST_30200. 26Al standard assumed to be KNSTD. Group ID based on sample location and geomorphology. Two samples grouped with Huang et al. (2008) samples. Li et al. (2011) Sampling year based on sample names. Group ID based on publication. Li et al. (2014) Sampling year based on sample names. Group ID based on publication. Li et al. (2016) All sample data present in publication. Group ID based on publication. Three samples grouped with Li et al. (2014) samples. Licciardi and Pierce (2008) Sampling year assumed to be 2006. Group ID based on sample location and geomorphology. Licciardi et al. (2001) 10Be concentrations and uncerrtainties from Table DR2 divided by 1.14 and 10Be standard set to NIST_Certified. Sampling year assumed to be 1999. Group ID based on publication. Licciardi et al. (2004) 10Be concentrations and uncerrtainties from Table DR2 divided by 1.14 and 10Be standard set to NIST_Certified. Sampling year assumed to be 2002. Group ID based on publication. Licciardi et al. (2009) All sample data present in publication. Group ID based on publication. Lifton et al. (2014) Sampling year based on direct information for "INK" and "TS" samples and assumed to be 2005 for "SJ" samples. Samples INK-01 and INK-01B are separate samples from one boulder. Group ID based on sample location and geomorphology. Lilly et al. (2010) Sampling year assumed to be 2004 ("samples for cosmogenic surface exposure dating were taken [---] during the austral summers of 2003/4 and 2004/5"). Group ID based on sample location and geomorphology. Two samples grouped with Huang et al. (2008) samples. Lindow et al. (2014) Sampling year assumed to be 2010 based on cruise ANT-XXVI/3. Group ID based on sample location and geomorphology. Linge et al. (2006a) Sample data based on email contact with Henriette Linge. Sampling year based on sample names. Group ID based on sample location and geomorphology. Linge et al. (2006b) Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names. Group ID based on publication. Linge et al. (2007) Latitudes and longitudes based on map figures and Google Earth. Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names. Group ID based on sample location and geomorphology. Liu et al. (2010) Latitudes, longitudes, sample thickness, density, topographic shielding factor, and sampling year derived from Huang et al. (2008). 10Be standard assumed to be NIST_30200. 26Al standard assumed to be KNSTD. Group ID based on sample location and geomorphology. All samples grouped with Huang et al. (2008) samples. Liu et al. (2017) Sampling year based on sample names. Group ID based on publication. Livingstone et al. (2015) Sampling year assumed to be 2013. Group ID based on sample location and geomorphology. Lowell et al. (2013) Sampling year assumed to be 2011. Group ID based on publication. Lukas and Bradwell (2010) Topographic shielding factor assumed to be 1. Sampling year based on sample names. One group ID for all samples (both samples from one location). Mackintosh et al. (2007) Topographic shielding factors back-calculated based on "Depth x Shielding correction" in Table DR3. 26Al standard assumed to be KNSTD. Sampling year assumed to be 2005. Group ID based on sample location and geomorphology (21 separate groups). Makos et al. (2016) Sample thickness back-calculated from the thickness including snow cover correction in Table 1 assuming a snow density of 0.25 g/cm3. Sampling year assumed to be 2014. Group ID based on publication. Makos et al. (2018) Sampling year assumed to be 2016. Group ID based on publication. Mangerud et al. (2008) Sample density assumed to be 2.65 g/cm3. Samples 2433 and 2434 are separate samples from one boulder. Group ID based on sample location and geomorphology. Mangerud et al. (2013) Sampling year based on sample names. Group ID based on publication. Mangerud et al. (2017) All sample data present in publication. Group ID based on publication. Marcott (2011) Latitudes and longitudes based on map figures and Google Earth. Sample thickness assumed to be 2 cm for all samples. Sampling year assumed to be 2011. Group ID based on sample location and geomorphology. Margold et al. (2014) Sampling year based on sample names. Group ID based on publication. Margold et al. (2016) All sample data present in publication. Group ID based on publication. Margold et al. (2018) All sample data present in publication. One group ID for all samples (all samples from one location). Margreth et al. (2016) Sample data (apart from some of the 10Be and 26Al concentrations for repeat measurements) derived from Margreth (2015). Group ID based on publication. Margreth et al. (2017) Sample coordinates for samples A167A derived from Margreth (2015). Sample thickness derived from Margreth (2015). Sample density derived from Margreth (2015). Topographic shielding factor derived from Margreth (2015). Sampling year derived from Margreth (2015). Group ID based on sample location and geomorphology. Marquette et al. (2004) Sample data for boulder samples based on email contact with Jane Willenbring. Sample density assumed to be 2.65 g/cm3. 10Be standard assumed to be KNSTD. 26Al standard assumed to be KNSTD. Sampling year based on sample names. Group ID based on sample location and geomorphology. Marsella (1998) Sample density assumed to be 2.7 g/cm3 based on Corbett et al. (2016a). Topographic shielding factors calculated from sample dip angles reported in Appendix B plus from Jonathan de Ferranti's 3" dem based on Codilean (2006) and Li (2013). 10Be standard assumed to be LLNL10000 based on Corbett et al. (2016a). 26Al standard assumed to be KNSTD based on Corbett et al. (2016a). Group ID based on sample location and geomorphology. Marsella et al. (2000) Latitudes, longitudes, and sample thickness derived from Marsella (1998) Appendix B. Sample density assumed to be 2.7 g/cm3 based on Corbett et al. (2016a). Topographic shielding factors calculated from sample dip angles reported in Marsella (1998) Appendix B plus from Jonathan de Ferranti's 3" dem based on Codilean (2006) and Li (2013). 10Be and 26Al concentrations and standards derived from Corbett et al. (2016a). For samples not included in Corbett et al. (2016a), 10Be and 26Al concentrations derived from Marsella (1998) Appendix B (10Be standard assumed to be LLNL10000 and 26Al standard assumed to be KNSTD based on Corbett et al. 2016a). Group ID based on sample location and geomorphology. Martini et al. (2017) Sampling year based on sample names. Group ID based on sample location and geomorphology. Mathers (2014) Sample CRAN01 latitude changed from 58.745268 to 58.45268 based on sample information and Google Earth. Sample ERE03b and ERE03c latitude and longitude based on sample ERE01 (located close together). Exponents for 10Be and 26Al concentrations corrected. 10Be standard assumed to be NIST_30600. 26Al standard assumed to be Z92-0222. Sampling year interpreted based on section 2.2.1 (p 31). Group ID based on sample location and geomorphology. Matmon et al. (2006) Sample thickness assumed to be 4 cm for all boulder samples. Topographic shielding factors calculated from Jonathan de Ferranti's 3" dem based on Codilean (2006) and Li (2013). 10Be standard assumed to be KNSTD. Sampling year assumed to be 2004. Group ID based on sample location and geomorphology. Matmon et al. (2010) Sample thickness assumed to be 4 cm for boulder samples, 1.5 cm for pebble samples, and 6 cm for the cobble sample. Topographic shielding factors calculated from Jonathan de Ferranti's 3" dem based on Codilean (2006) and Li (2013). Sampling year assumed to be 2005. Group ID based on sample location and geomorphology. Matsuoka et al. (2006) Latitude, longitude, elevation, and 10Be/26Al data based on email contact with Norikazu Matsuoka. Sample thickness assumed to be 4 cm. Sample density assumed to be 2.65 g/cm3. Topographic shielding factor assumed to be 1. 10Be and 26Al concentrations based on isotope ratios and carrier/sample weights from Norikazu Matsuoka. 10Be standard assumed to be KNSTD. 26Al standard assumed to be KNSTD. Sampling year based on sample names. Group ID based on sample location and geomorphology (three separate groups). Matthews et al. (2008) Latitudes and longitudes based on map figures and Google Earth. Group ID based on sample location and geomorphology. Matthews et al. (2017) Latitudes and longitudes based on information in paper and Google Earth. Group ID based on sample location and geomorphology (two separate sites). May et al. (2011) Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). 10Be standard assumed to be S555. Sampling year assumed to be 2009. Group ID based on sample location and geomorphology. Five samples grouped with Zech et al. (2007b) samples. McCarroll et al. (2010) Latitudes and longitudes for "SC" and "HM" samples based on map figures, sample information, and Google Earth. Sample density for "GT" samples derived from Ballantyne et al. (2013). 10Be concentration of LLNL3000 samples divided by 0.965 to back-calculate measured concentration. Sampling year assumed to be 2008. Sample SC-08 is a separate sample from the same boulder as sample T4SHI01 in Smedley et al. (2017). Group ID based on sample location and geomorphology. McCarthy et al. (2008) Latitudes and longitudes based on map figures and Google Earth. Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2006. Group ID based on sample location and geomorphology (two separate groups). McCormack et al. (2011) Sampling year assumed to be 2009. Group ID based on sample location and geomorphology. McCuaig (1994) Latitudes and longitudes based on map figures and Google Earth. Sample thickness assumed to be 4 cm. Sample density assumed to be 2.65 g/cm3. Topographic shielding factor assumed to be 1. 10Be standard assumed to be KNSTD. 26Al standard assumed to be KNSTD. Sampling year based on sample names. Group ID based on sample location and geomorphology (five separate groups). McCulloch et al. (2005) Sample thickness back-calculated from shielding correction in Table 1. Sample density assumed to be 2.65 g/cm3. Topographic shielding factor assumed to be 1. 10Be standard assumed to be S555. Sampling year assumed to be 2003. Group ID based on publication. McQuinn (1996) Sample elevations based on Google Earth. Sample thickness assumed to be 3 cm ("generally less than 4 cm thick"). Sample density assumed to be 2.65 g/cm3. Topographic shielding factors based on dip angles in Table 6-1. 10Be and 26Al concentrations calculated from isotope ratios and sample/carrier weight from Table 6-3. 10Be standard assumed to be NIST_Certified. 26Al standard assumed to be KNSTD. Sampling year assumed to be 1995. Samples Smith-Top and Smith-Bottom are separate samples from one boulder. Samples Duncan and Duncan-II are separate samples from one boulder. Samples Otterbein-Top and Otterbein-Bottom are separate samples from one boulder. Group ID based on sample location and geomorphology (13 separate groups). Menounos et al. (2013a) Sampling year assumed to be 2011. One group ID for all samples (all samples from one location). Menounos et al. (2013b) Coordinates and elevation for sample 11-21A based on Figure 4 and Google Earth. Sampling year based on sample names. Group ID based on sample location and geomorphology. Menounos et al. (2017) 10Be concentrations based on isotope ratios and sample/carrier weights. Sampling year based on sample names. Group ID based on sample location and geomorphology. Mentlík et al. (2013) Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). Sampling year assumed to be 2011. Group ID based on publication. Mercier et al. (1999) Latitudes and longitudes based on map figures and Google Earth. Sample thickness assumed to be 3 cm. Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from dip values in Table 1 and from SRTM 30 m dem based on Codilean (2006) and Li (2013). 10Be standard reported in Braucher et al. (2006). Sampling year assumed to be 1997. Group ID based on sample location and geomorphology. Mériaux et al. (2004) Latitudes and longitudes based on map figures and Google Earth. Sample thickness assumed to be 4 cm. Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). 10Be standard assumed to be LLNL3000. 26Al standard assumed to be KNSTD. Sampling year based on email contact with Anne-Sophie Mériaux. Group ID based on sample location and geomorphology. Middleton et al. (2012) Sampling year based on sample names. Group ID based on sample location and geomorphology. Miller et al. (2006) All sample data present in publication. Group ID based on sample location and geomorphology. Möller et al. (2010) Latitudes, longitudes, and 10Be concentrations derived from Larsen et al. (2016) supplementary data for the four samples included. Sample thickness back-calculated from thickness correction in Table 4. Sampling year based on sample names. Group ID based on sample location and geomorphology. Moran et al. (2016a) Sampling year assumed to be 2014. Group ID based on publication. Moran et al. (2016b) Sampling year assumed to be 2013. Group ID based on sample location and geomorphology. Four samples grouped with Kerschner et al. (2006) samples. Moran et al. (2017) Sample density assumed to be 2.65 g/cm3. 10Be concentration for sample LL-3 based on email contact with Andrew Moran. Sampling year assumed to be 2015. Group ID based on publication. Moreiras et al. (2017) Sample coordinates based on supplementary kmz file. Sample thickness and density assumed to be 5 cm and 2.7 g/cm3, respectively, based on the thickness scaling factor of 0.959. Sampling year assumed to be 2012 based on sample names. Group ID based on sample location and geomorphology. Moreno et al. (2009) Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from SRTM 90 m dem based on Codilean (2006) and Li (2013). 10Be standard assumed to be S555 for samples measured at ETH and 07KNSTD (following García et al. 2012) for samples measured at LLNL. Sampling year based on sample names. Group ID based on sample location and geomorphology. Three samples grouped with Fogwill and Kubik (2005) samples. Morgan et al. (2009) Sampling year based on sample names. Group ID based on sample location and geomorphology. One sample grouped with Brown et al. (1991) sample. Mukhopadhyay et al. (2012) Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names. Group ID based on sample location and geomorphology. Three samples grouped with Ackert et al. (2007) and Ackert et al. (2011) samples. Munroe et al. (2006) Sample latitudes adjusted based on map figures in Laabs et al. (2009) and Google Earth. Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). 10Be concentrations and uncertainties divided by 1.14 and 10Be standard set to NIST_Certified. Sampling year assumed to be 2004. Samples LF04-5A and LF04-5B are presumably separate samples from the same boulder. Group ID based on publication. Murari et al. (2014) Sampling year assumed to be 2012. Group ID based on sample location and geomorphology. Murray et al. (2012) Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names. Group ID based on publication. Nelson et al. (2014) Latitudes and longitudes for 9 samples from Corbett et al. (2017a). Topographic shielding factors calculated from Jonathan de Ferranti's 3" dem based on Codilean (2006) and Li (2013). 26Al data from Corbett et al. (2017a). Sampling year assumed to be 2011 for all samples based on information in Acknowledgements. Group ID based on sample location and geomorphology. Two samples grouped with Carlson et al. (2014) samples. Two samples grouped with Bierman et al. (in press) samples. Nesje et al. (2007) Latitudes and longitudes based on map figures, sample information, and Google Earth. Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2005. Group ID based on sample location and geomorphology. Nimick et al. (2016) 10Be concentrations and uncertainties calculated from isotope ratios and sample/carrier weights. Group ID based on publication. Nishiizumi et al. (1989) For samples W86-1 to W86-13: Latitude, longitude, elevation, sample thickness, density, and shielding derived from Pillips et al. (2016a). For samples W86-14 and W86-16: Sample thickness assumed to be 1 cm. Sample density assumed to be 2.65 g/cm3. Topographic shielding factors derived from Balco et al. (2008) supplementary dataset. For all samples: 10Be standard assumed to be KNSTD. 26Al standard assumed to be KNSTD. Sampling year based on sample names. Group ID based on publication. Nishiizumi et al. (1991) Latitudes and longitudes based on map figures, sample information, and Google Earth. Sample thickness assumed to be 3 cm for all samples lacking thickness information. Sample density assumed to be 2.65 g/cm3. Topographic shielding factor assumed to be 1. 10Be standard assumed to be KNSTD. 26Al standard assumed to be KNSTD. Sampling year based on sample names and information in the ICE-D database (http://antarctica.ice-d.org/). Samples RKP-T and RKP-B is one sample split in two parts: T (0-2.2 cm) and B (2.2-4.0 cm). Samples FM-B-T, FM-B-M, and FM-B-B is one sample split in three parts: T (0-2.2 cm), M (2.2-4.4 cm), B (4.4-6.5 cm). Group ID based on sample location and geomorphology. Nishiizumi et al. (1993) Latitudes and longitudes based on figures, sample information, and Google Earth. Sample thickness assumed to be 3 cm. Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). 10Be standard assumed to be KNSTD. 26Al standard assumed to be KNSTD. Sampling year assumed to be 1989 (based on sample names for "P" samples in other publications). Group ID based on sample location and geomorphology. Nývlt et al. (2014) Sampling year based on sample names. One group ID from Johnson et al. (2011) for all samples (all samples from one location). Oberholzer et al. (2003) Latitudes and longitudes based on figures and Google Earth. Sample thickness assumed to be 3 cm. Topographic shielding factor assumed to be 1. 10Be standard assumed to be S555. Sampling year assumed to be 2001. Group ID based on sample location and geomorphology (four separate samples). O'Hara et al. (2017) All sample data present in publication. Group ID based on sample location and geomorphology. Orr et al. (2017) Sample data for STOK samples from Saha et al. (2018). Sample density assumed to be 2.65 g/cm3. 10Be concentrations for ZK samples based on email contact with Elizabeth Orr (ZK1 and ZK3 correct in publication). 10Be standard assumed to be 07KNSTD. Sampling year assumed to be 2014. Group ID based on publication. Four samples grouped with one Saha et al. (2018) sample. Orr et al. (2018) Sample density assumed to be 2.65 g/cm3. 10Be standard assumed to be 07KNSTD. Sampling year assumed to be 2014 based on sample names. Group ID based on publication. Owen et al. (2001) Sample thickness, sample density, and 10Be standard derived from Owen and Dortch (2014: QSR). 26Al standard assumed to be KNSTD. Sampling year assumed to be 1999. Group ID based on sample location and geomorphology. Owen et al. (2002) Sample thickness, sample density, and 10Be standard derived from Owen and Dortch (2014) supplementary table. 26Al standard assumed to be KNSTD. Sampling year based on sample names. Group ID based on publication (Figure 5). Owen et al. (2003a) Latitudes and longitudes for "A" samples based on map figures and Google Earth. Latitudes and longitudes for "N" samples derived from Owen et al. (2008) supplementary table. Sample thickness, sample density, and 10Be standard derived from Owen and Dortch (2014) supplementary table. Topographic shielding factors derived from Owen et al. (2008) supplementary table. Sampling year assumed to be 2001. Group ID based on sample location and geomorphology. Owen et al. (2003b) Sample thickness assumed to be 3 cm. Sample density assumed to be 2.65 g/cm3. 10Be standard assumed to be KNSTD. Sampling year assumed to be 2001. Group ID based on sample location and geomorphology. Owen et al. (2003c) Latitudes and longitudes based on map figures and Google Earth. Sample thickness, sample density, and 10Be standard derived from Owen and Dortch (2014) supplementary table. Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). Sampling year assumed to be 2001. Group ID based on sample location and geomorphology. Owen et al. (2003d) Latitudes and longitudes based on map figures and Google Earth. Sample thickness, sample density, and 10Be standard derived from Owen and Dortch (2014) supplementary table. Sampling year assumed to be 2001. Group ID based on publication (Figure 9). Owen et al. (2005) Sample thickness, sample density, and 10Be standard derived from Owen and Dortch (2014) supplementary table. Topographic shielding factors derived from Owen et al. (2008) supplementary table. A typo in the 10Be concentration for sample PR78 is corrected. Sampling year assumed to be 2003. Group ID based on sample location and geomorphology. Five samples grouped with Schäfer et al. (2002) samples. Owen et al. (2006a) Sample thickness, sample density, and 10Be standard derived from Owen and Dortch (2014) supplementary table. Sampling year assumed to be 2004. Group ID based on sample location and geomorphology. Five samples grouped with Brown et al. (2002) samples. Owen et al. (2006b) Latitudes and longitudes derived from Owen et al. (2008) supplementary table. Sample thickness, sample density, and 10Be standard derived from Owen and Dortch (2014) supplementary table. Sampling year assumed to be 2004. Group ID based on sample location and geomorphology. Owen et al. (2009) Density derived from Owen and Dortch (2014) supplementary table. Sampling year assumed to be 2007. Group ID based on sample location and geomorphology. Owen et al. (2010) Sampling year assumed to be 2008. Samples with A/B in name are presumably separate samples from the same boulder. Group ID based on publication. Owen et al. (2012) Sampling year assumed to be 2010. Group ID based on publication. Paasche et al. (2006) Latitudes and longitudes based on email contact with Øyvind Paasche. Sample density assumed to be 2.65 g/cm3. 10Be standard assumed to be NIST_Certified. Sampling year based on sample names. Group ID based on sample location and geomorphology (two separate groups). Palacios et al. (2017) The latitude for sample BRA-4 and the longitude for sample RES-7 based on Google Earth (to correct apparent errors). Sampling year assumed to be 2015. Group ID based on sample location and geomorphology. Pallàs et al. (2006) Latitudes and longitudes based on map figures and Google Earth. Sample thickness assumed to be 2 cm. Sample density assumed to be 2.65 g/cm3. 10Be concentrations and uncertainties divided by 1.143 and 10Be standard set to NIST_Certified. Sampling year assumed to be 2004. Group ID based on sample location and geomorphology. Pallàs et al. (2010) Sampling year assumed to be 2008. Group ID based on sample location and geomorphology. Paus et al. (2015) Sampling year based on sample names. Group ID based on sample location and geomorphology. Pendleton et al. (2015) Shielding for samples 57-59 from Pendleton et al. (2017). Sampling year based on sample names. Group ID based on sample location and geomorphology. Pendleton et al. (2017) Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2012 based on Pendleton et al. (2015). Group ID based on publication. Philipps et al. (2017) Sample density assumed to be 2.65 g/cm3. 10Be concentration exponent typo corrected for sample T-06. Sampling year based on sample names for SCO samples and assumed to be 2013 (when fieldwork was carried out) for T samples. Samples T-03-1 and T-03-2 are separate samples from the same boulder. Group ID based on publication. Philipps et al. (2018) Sample density assumed to be 2.65 g/cm3. 10Be concentration exponent typo corrected for sample 13GRSA-05. 10Be uncertainties based on exposure age uncertainties. Sampling year based on sample names. Group ID based on sample location and geomorphology. Phillips et al. (1997) Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). 10Be standard assumed to be KNSTD. Sampling year based on sample names for "WY" samples and assumed to be 1992 for "BRL" samples. Group ID based on publication. One sample grouped with Gosse et al. (1995b) samples. Phillips et al. (2000) 10Be concentrations and uncertainties divided by 1.14 and 10Be standard set to NIST_Certified. Sampling year based on Lab ID in supplementary Table A. Group ID based on sample location and geomorphology. Phillips et al. (2006) Sample thickness back-calculated based on thickness correction in Table 2. 26Al standard assumed to be Z92-0222. Sampling year assumed to be 2004. Group ID based on publication. Phillips et al. (2008) Sampling year assumed to be 2006. Group ID based on sample location and geomorphology. Phillips et al. (2016b) All sample data present in publication. Samples HU08-01 (repeat measurements of single sample) from the same boulder as samples Q-44 (Kelly et al. 2015). Samples HU08-02 (repeat measurements of single sample) from the same boulder as sample Q-46 (Kelly et al. 2015). One group ID from Kelly et al. (2015) for all samples (all samples from one location). Pierce et al. (2017) Sampling year assumed to be 2015. Group ID based on sample location and geomorphology. Porreca et al. (2018) Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names. Group ID based on publication. Pratt-Sitaula (2005) Sample data based on email contact with Beth Pratt-Sitaula. 10Be standard based on information in Pratt-Sitaula et al. (2011). Sampling year assumed to be 2003. Group ID based on sample location and geomorphology. Pratt-Sitaula et al. (2011) 10Be concentration and uncertainty based on email contact with Beth Pratt-Sitaula. Sampling year assumed to be 2003. Group ID based on sample location and geomorphology. Putnam et al. (2010a) Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names and assumed to be 2004 for "KIWI" samples. Group ID based on publication. Putnam et al. (2010b) All sample data present in publication. Group ID based on publication. Putnam et al. (2012) Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names. Group ID based on publication. Putnam et al. (2013a) Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names. Group ID based on publication. Two samples grouped with Koffman et al. (2017) samples. Putnam et al. (2013b) Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names. Group ID based on publication. Rades et al. (2015) Sampling year based on sample names. Group ID based on publication. Reber et al. (2014a) 10Be standard assumed to be S555N. Sampling year assumed to be 2012. Group ID based on sample location and geomorphology. Reber et al. (2014b) Sampling year assumed to be 2012. Samples TRBAS-29 and TRBAS-29b are separate samples from the same boulder. Group ID based on sample location and geomorphology. Refsnider et al. (2008) Latitude for samples NFP-2B and NFP-3A based on Figure 1 and Google Earth. Sample density assumed to be 2.65 g/cm3. 10Be standard assumed to be KNSTD based on Laabs et al. (2009). 26Al standard assumed to be KNSTD. Sampling year assumed to be 2006. Group ID based on sample location and geomorphology. Reitner et al. (2016) Sample density assumed to be 2.65 g/cm3. Group ID based on publication (one moraine). Reusche et al. (2014) Sampling year assumed to be 2012. Group ID based on publication (Figure 2). Reuther (2007) Coordinates for the three CHU-03 samples based on Google Eearth and Figure 6.19. Sampling year based on sample names. Samples PT-03-14 and PT-03-15 are separate samples (located c. 2 m apart) from one bedrock surface. Group ID based on sample location and geomorphology. Reuther et al. (2007) Latitudes and longitues derived from Reuther (2007). Sample density assumed to be 2.7 g/cm3 based on Reuther (2007). 10Be standard assumed to be S555. Sampling year based on sample names. Group ID based on sample location and geomorphology. Reuther et al. (2011) Latitudes and longitues derived from Reuther (2007). Sample density assumed to be 2.7 g/cm3 based on Reuther (2007). 10Be concentration and uncertainty for sample BW-04-01 derived from Reuther (2007). Sampling year based on sample names. Samples KAS-1-1, KAS-2-1, and KAS-3-1 are separate samples located close toghether on one bedrock surface. Group ID based on sample location and geomorphology. One sample (two measurements) grouped with Reuther (2007) sample. Ribolini et al. (2018) Latitudes and longitues based on email contact with Silke Mechernich. Sampling year assumed to be 2014 ("...two field campaigns in 2013 and 2014"). One group ID for all samples (all samples from one location). Rinterknecht et al. (2004) Sampling year assumed to be 2002. One group ID for all samples (all samples from one location). Rinterknecht et al. (2005) 10Be concentrations from Rinterknecht et al. (2006). Sampling year assumed to be 2003. Group ID based on sample location and geomorphology. Rinterknecht et al. (2006) Sample thickness back-calculated based on thickness scaling factor in Table S1. Sampling year assumed to be 2004. Samples BEL-15 and BEL-15A are separate samples from the same boulder. Group ID based on sample location and geomorphology. Rinterknecht et al. (2009) Sample thickness back-calculated based on thickness factor in Table 2. Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2007. Group ID based on sample location and geomorphology. Rinterknecht et al. (2012a) Sampling year based on sample names. Group ID based on sample location and geomorphology. Rinterknecht et al. (2012b) Sampling year assumed to be 2010. One group ID for all samples (all samples from one location). Rinterknecht et al. (2014a) Sampling year assumed to be 2012. Group ID based on sample location and geomorphology. Rinterknecht et al. (2014b) Sampling year assumed to be 2012. One group ID for all samples (all samples from one location). Roberts et al. (2008) Sampling year assumed to be 2006. Group ID based on sample location and geomorphology. Roberts et al. (2009) Sample thickness back-calculated based on thickness attenuation in Table 1. Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2007. Group ID based on sample location and geomorphology. Roberts et al. (2013) Latitudes and longitudes based on map figures and Google Earth. Sample thickness back-calculated based on effective thickness in Table 1. Sample density assumed to be 2.65 g/cm3. 10Be standard assumed to be NIST_30600. 26Al standard assumed to be Z92-0222. Sampling year assumed to be 2011. Group ID based on sample location and geomorphology. Rodés Bolumburu (2008) Latitudes and longitudes based on map figures and Google Earth. Sample thickness assumed to be 2.5 cm. 10Be concentration and uncertainty divided by 1.14328 and 10Be standard set to NIST_Certified. Sampling year assumed to be 2006. Group ID based on sample location and geomorphology. Rodríguez-Rodríguez et al. (2014) Sampling year assumed to be 2012. Group ID based on sample location and geomorphology. Rodríguez-Rodríguez et al. (2016) Sampling year assumed to be 2014. Group ID based on publication. Rodríguez-Rodríguez et al. (2017) Sampling year assumed to be 2015. Group ID based on publication. Röhringer et al. (2012) All sample data present in publication. Group ID based on sample location and geomorphology. Six samples grouped with Zech et al. (2005) and Abramowski et al. (2006) samples. Rolfe et al. (2012) Latitudes and longitudes based on map figures and Google Earth. Sampling year assumed to be 2010. Samples LC5a and LC5ad are separate samples from the same pegmatite vein. One group ID for all samples (all samples from one location). Romundset et al. (2017) Topographic shielding back-calculated using CRONUS calculator and given thickness and density. Sampling year assumed to be 2015. Group ID based on sample location and geomorphology. Rood et al. (2011) Sampling year based on sample names. Group ID based on publication. Rother (2006) Sample thickness assumed to be 4 cm. Sample density assumed to be 2.65 g/cm3. 10Be standard assumed to be NIST_30200. Sampling year assumed to be 2004. Group ID based on sample location and geomorphology. Rother et al. (2014a) Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2012. Group ID based on publication. Rother et al. (2014b) Sampling year assumed to be 2012. Group ID based on sample location and geomorphology. Three samples grouped with Batbaatar et al. (2018) samples. Rother et al. (2015) Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2013. Group ID based on publication. Rother et al. (2017) Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2009 (http://www.pgg.rwth-aachen.de/tip/). Group ID based on publication. Ruszkiczay-Rüdiger et al. (2016) Sampling year based on sample names. Group ID based on sample location and geomorphology. Sagredo et al. (2011) Sampling year based on sample names. Group ID based on sample location and geomorphology. Sagredo et al. (2017) Sampling year based on sample names. Group ID based on sample location and geomorphology. Sagredo et al. (in press) Latitude for samples PC10-01-20 and PC10-01-13 based on Google Eerth and Figure 2. Longitude for samples PC13-01-01 and PC13-01-02 based on Google Earth and Figure 2. Sampling year based on sample names. Group ID based on publication. Saha et al. (2016) Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). Sampling year assumed to be 2014. Group ID based on sample location and geomorphology. Saha et al. (2018) Sampling year based on sample names and assumed to be 2014 for KO samples. Group ID based on publication. Four samples grouped with Hedrick et al. (2011) samples. One sample grouped with Orr et al. (2017) samples. Sanchez et al. (2010) Latitudes and longitudes based on map figures and Google Earth. Sample thickness assumed to be 3 cm. Sampling year based on sample names. One group ID for all samples (all samples from one location). Schaefer et al. (2006) Sample Kiwi-333 has coordinates from Schaefer et al. (2015). 10Be standard assumed to be S555. Sampling year assumed to be 2004. Group ID based on sample location and geomorphology. Schaefer et al. (2008) Latitudes and longitudes based on map figures and Google Earth. 10Be standard assumed to be S555. Sampling year assumed to be 2006. Group ID based on sample location and geomorphology. Schaefer et al. (2009) Sampling year assumed to be 2004. Group ID based on publication. Schaefer et al. (2015) 10Be standard for samples Kiwi-509, Kiwi-513, Kiwi-514 assumed to be KNSTD based on Doughty et al. (2015) and published exposure ages. Sampling year based on sample names and assumed to be 2004 for "Kiwi" samples. Sample Kiwi-333 is assumed to be the same as in Schaefer et al. (2006). Group ID based on sample location and geomorphology. Six samples grouped with Schaefer et al. (2006) and Kelley et al. (2014) samples. Schäfer (2000) Latitudes and longitudes based on map figures and Google Earth. Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). 10Be standard assumed to be S555. 26Al standard assumed to be ZAL94. Sampling year assumed to be 1998. Samples Lit1a (repeat measurements) and Lit1b are separate samples from one boulder. One group ID for all samples (all samples from one location). Schäfer et al. (2002) Latitudes and longitudes based on map figures and Google Earth. Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). 10Be standard assumed to be S555. 26Al standard assumed to be ZAL94. Sampling year assumed to be 1998. Samples Lit4a and Lit4bc are separate samples from one boulder. Samples Lit5a and Lit5b are separate samples from one boulder. Group ID based on sample location and geomorphology. Scherler et al. (2010) Sampling year based on sample names. Group ID based on sample location and geomorphology. Scherler et al. (2014) Sample thickness assumed to be 3 cm. Sampling year assumed to be 2012. Group ID based on sample location and geomorphology (two separate groups). Schildgen (2000) Latitudes and longitudes based on map figures and Google Earth. Sample thickness back-calculated based on thickness correction in Appendix B. Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). 10Be standard assumed to be KNSTD. 26Al standard assumed to be KNSTD. Sampling year based on sample names. Group ID based on sample location and geomorphology (six separate groups). Schimmelpfennig et al. (2012) Sampling year assumed to be 2010. Group ID based on publication. One sample grouped with Abbühl et al. (2009) samples. Schimmelpfennig et al. (2014) Sampling year assumed to be 2010 ("All ages are reported in calendar years before 2010 CE"). Group ID based on sample location and geomorphology. Schindelwig et al. (2012) Sampling year assumed to be 2010. Group ID based on publication. Schwartz et al. (2017) Coordinates adjusted for samples P4, P18, P19 based on Google Earth and Figure 4. Sampling year assumed to be 2007. Samples P3, P16-1, P16-2, P17 included in Le Roux et al. (2009) as Pg3, PqI-I, Pgl-2, Pg2. Group ID based on sample location and geomorphology. 11 samples grouped with Le Roux et al. (2009) samples. Schweinsberg et al. (2017) All sample data present in publication. Group ID based on publication. Seong et al. (2007) Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2005. Group ID based on sample location and geomorphology. Seong et al. (2009a) Sample thickness assumed to be 5 cm. Sample density assumed to be 2.0 g/cm3. Topographic shielding factors calculated from SRTM 90 m dem based on Codilean (2006) and Li (2013). Group ID based on sample location and geomorphology. Seong et al. (2009b) Sample density assumed to be 2.65 g/cm3. 10Be standard derived from Owen and Dortch (2014) supplementary table. Sampling year assumed to be 2007. Group ID based on sample location and geomorphology. Shakesby et al. (2008) Sample coordinates for samples A1-A3 based on Figure 1 in Matthews and Winkler (2011). 10Be standard assumed to be NIST_30600. 26Al standard assumed to be Z92-0222. Sampling year assumed to be 2006. Group ID based on publication. Shakun et al. (2015b) Sample data from Shakun et al. (2015a). Latitudes and longitudes based on map figures and Google Earth. Sampling year assumed to be 2013. Group ID based on sample location and geomorphology. Shulmeister et al. (2005) Latitudes and longitudes based on map figures and Google Earth. Sample thickness assumed to be 3 cm for boulder samples and 4 cm for bedrock samples. Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from SRTM 90 m dem based on Codilean (2006) and Li (2013). 10Be standard assumed to be NIST_30200. 26Al standard assumed to be Z92-0222. Sampling year assumed to be 2003. Group ID based on publication. Shulmeister et al. (2010) Latitudes and longitudes based on map figures and Google Earth. Sample thickness assumed to be 4 cm ("Sample thicknesses ranged from 3 to 5 cm"). Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). Sampling year assumed to be 2008. Group ID based on sample location and geomorphology. Shulmeister et al. (2018) Sampling year assumptions (2012 and 2016) based on sample names and supplementary information. Group ID based on sample location and geomorphology. Siame et al. (2007) Sample thickness assumed to be 3 cm. Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2005. Group ID based on sample location and geomorphology. Small and Fabel (2016) Sampling year assumed to be 2014. One group ID for all samples (all samples from one location). Small et al. (2012) Sampling year assumed to be 2008 based on "STR" sample names. Group ID based on publication. Small et al. (2017) Sampling year assumed to be 2015. Group ID based on publication. Smedley et al. (2017) Sampling year assumed to be 2013 based on info in BRITICE-CHRONO web page. Sample T4SHI01 is a separate sample from the same boulder as sample SC-08 in McCarroll et al. (2010). One group ID from McCarroll et al. (2010) for all samples (all samples from one location). Smellie et al. (2018) Sampling year based on sample names. One group ID for all samples (all samples from one location). Smith and Rodbell (2010) Sampling year based on sample names. Group ID based on sample location and geomorphology. 21 samples grouped with Glasser et al. (2009) samples. Smith et al. (2005a) Sample data derived from website and checked with Jacqueline Smith. Sampling year based on sample names. Samples AL016 and PE02-ALC-08 are separate samples from one boulder. Samples AL017 and PE02-ALC-07 are separate samples from one boulder. Samples AL018 and PE02-ALC-06 are separate samples from one boulder. Group ID based on sample location and geomorphology. Smith et al. (2005b) Sample data derived from website and checked with Jacqueline Smith. Latitude and longitude decimals swapped for all ZONG samples. Sampling year based on sample names. Group ID based on publication. Smith et al. (2011) Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2009. Group ID based on publication. Smith et al. (2016) Longitude for sample MN12-31 adjusted (incorrect in Table 5). Topographic shielding factors calculated from SRTM 30 m DEM based on Codilean (2006) and Li (2013). Sampling year based on sample names. Group ID based on sample location and geomorphology. Spector et al. (2017) Sampling year based on sample names. Group ID based on sample location and geomorphology. Staiger et al. (2005) Sample data for boulder samples based on email contact with Jane Willenbring. Sample density assumed to be 2.65 g/cm3. 10Be standard assumed to be KNSTD. 26Al standard assumed to be KNSTD. Sampling year based on sample names. Group ID based on sample location and geomorphology. Two samples grouped with Clark et al. (2003) and Marquette et al. (2004) samples. Standell (2014) Sampling year assumed to be 2012. Group ID based on publication. Stansell et al. (2015) Sampling year based on sample names. Group ID based on publication. Stansell et al. (2017) Sampling year based on sample names. Group ID based on publication. Steig et al. (1998) Latitudes and longitudes based on map figures and Google Earth. Sample thickness assumed to be 5 cm. Topographic shielding factor assumed to be 1. 10Be standard assumed to be KNSTD. 26Al standard assumed to be KNSTD. Sampling year based on sample names. Group ID based on publication. Stone and Ballantyne (2006) Coordinates for samples NH-1, NH-2, NH-3, NH-5, NH-6, and 019-NH adjusted based on map figures and information in Table 1. Sample thickness back-calculated from thickness correction values in Table 2, assuming a sample density of 2.65 g/cm3. Topographic shielding assumed to be 1. 10Be standard assumed to be LLNL1000. Sampling year assumed to be 2004. Group ID based on sample location and geomorphology. Stone et al. (1998) Latitudes and longitudes based on map figures and Google Earth. Sample thickness back-calculated from thickness correction in Table 1 and 3, assuming a sample density of 2.65 g/cm3. 26Al standard assumed to be Z92-0222. Sampling year assumed to be 1996. Group ID based on sample location and geomorphology. Stone et al. (2003) Sample data derived from John Stone's web page http://depts.washington.edu/cosmolab/data/Marie_Byrd_Land_data.shtml (2016-01-09). Sampling year based on sample names. Group ID based on sample location and geomorphology. Storey et al. (2010) Sampling year assumed to be 2008. Group ID based on publication. Strasky et al. (2006) 10Be standard assumed to be S555. Sampling year assumed to be 2004. One sample and one group ID. Strasky et al. (2009a) Latitudes and longitudes based on map figures and Google Earth. Sample thickness and topographic shielding back-calculated from correction factor in Table 2. 10Be standard assumed to be S555. Sampling year assumed to be 2006 based on "rh" sample names. Group ID based on sample location and geomorphology. Strasky et al. (2009b) Sample thickness back-calculated from correction factor in Table 1 with sample density assumed to be 2.65 g/cm3 and topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). 10Be standard assumed to be S555. Sampling year assumed to be 2007. Group ID based on sample location and geomorphology. Strelin et al (2014) Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names. Group ID based on sample location and geomorphology. Stroeven et al. (2002a) All sample data derived from Stroeven et al. (2016). Group ID based on sample location and geomorphology. Stroeven et al. (2002b) All sample data derived from Stroeven et al. (2016). Coordinates for sample Bieskecohka updated. Group ID based on sample location and geomorphology (three separate groups). Stroeven et al. (2006) All sample data derived from Stroeven et al. (2016). Group ID based on sample location and geomorphology. One sample grouped with Stroeven et al. (2002a) samples. Stroeven et al. (2010) Sample density assumed to be 2.65 g/cm3. Sampling year derived from Arjen Stroeven. Group ID based on sample location and geomorphology. Stroeven et al. (2011) All sample data derived from Stroeven et al. (2016). Group ID based on sample location and geomorphology. Stroeven et al. (2014) Sampling year based on sample names. Group ID based on publication. Stroeven et al. (2015) All sample data present in publication. One group ID for all samples (all samples from one location). Stroeven et al. (2016) All sample data present in publication. Coordinates for sample MJ-13 updated after visiting the site in May 2016. Coordinates for samples 98-04, 98-07, 98-08 updated. Sample 98-19 is the same as sample 19 in Harbor et al. (2006). Sample 98-20 is the same as samples Tjuolmma-920 and Tjuolmma-R-920 in Fabel et al. (2002). Samples 99-16 and S-03-99 are separate samples from one boulder. Sample S-02-19 is the same as sample 13 in Li et al. (2005). Group ID based on sample location and geomorphology. 11 samples grouped with Fabel et al. (2002), Stroeven et al. (2002a), Stroeven et al. (2002b), Li et al. (2005), and Harbor et al. (2006) samples. Stroup et al. (2014) Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names. Group ID based on publication. Stroup et al. (2015) Sampling year assumed to be 2011. Group ID based on publication. Strub et al. (2015) Latitudes and longitudes based on map figures and Google Earth. Group ID based on publication. Stübner et al. (2017) Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names. Group ID based on publication. Suganuma et al. (2014) Sampling year based on sample names. Group ID based on sample location and geomorphology. Two samples grouped with Matsuoka et al. (2006) samples. Sugden et al. (2005) Data derived from the ICE-D database (http://antarctica.ice-d.org/). Sampling year based on sample names. Group ID based on sample location and geomorphology. Nine samples grouped with Stone et al. (2003) samples. Sugden et al. (2014) All sample data present in publication. Group ID based on sample location and geomorphology. Sugden et al. (2017) 10Be and 26Al concentration exponent error corrected. Sampling year based on sample names. Group ID based on sample location and geomorphology. Four samples grouped with Bentley et al. (2010) and Hein et al. (2016b) samples. Sutherland et al. (2007) Topographic shielding factors calculated from SRTM 90 m dem based on Codilean (2006) and Li (2013). 10Be standard assumed to be NIST_30600. Sampling year assumed to be 2005. Group ID based on publication. Svendsen et al. (2015) Sampling year based on sample names. Group ID based on publication. Terrizzano et al. (2017) 10Be concentrations based on email contact with Carla Terrizzano. Sampling year assumed to be 2015. Group ID based on publication. Thackray et al. (2009) Latitudes and longitudes based on map figures and Google Earth. Topographic shielding factors calculated from SRTM 90 m dem based on Codilean (2006) and Li (2013). Sapling year assumed to be 2007. Group ID based on sample location and geomorphology. Todd et al. (2010) Sample thickness back-calculated from thickness correction in Table 1, assuming a sample density of 2.65 g/cm3. Sampling year based on sample names. Group ID based on publication. Tranel and Strow (2017) Sampling year assumed to be 2011 (sample AMS ID indicate measurements in 2012). Group ID based on sample location and geomorphology (two separate groups). Tranel et al. (2015) Sampling year assumed to be 2013. Group ID based on sample location and geomorphology (five separate groups). Tschudi et al. (2000) Latitudes and longitudes derived from Rinterknecht et al. (2004). 10Be standard assumed to be S555. One group ID for all samples (all samples from one location). Tschudi et al. (2003a) Sample density assumed to be 2.65 g/cm3. 10Be standard assumed to be S555. 26Al standard assumed to be ZAL94. Sampling year assumed to be 2001. Group ID based on sample location and geomorphology. Tschudi et al. (2003b) Latitudes and longitudes based on figure in Strasky et al. (2009b) and Google Earth. Sample thickness and density derived from Tschudi (2000) PhD thesis. Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). 10Be standard assumed to be S555. 26Al standard assumed to be ZAL94. Sampling year assumed to be 2001. One group ID for all samples (all samples from one location). Ullman et al. (2015) Sampling year based on sample names. Group ID based on publication. Ullman et al. (2016) Latitude changed from 55 to 50 for sample SK-10-03. Sampling year based on sample names for samples with "10" and "11" in the names. Sampling year assumed to be 2005 for "QC" samples and 2010 for all other samples. Group ID based on sample location and geomorphology. Three samples grouped with Carlson et al. (2007) samples (three remeasured samples). Utting et al. (2016) Topographic shielding factor assumed to be 1. Sampling year based on sample names. Group ID based on sample location and geomorphology (two separate groups). Valentino et al. (2017) Longitude for sample CHU67 changed based on Figure 3.3 (-149.1381 -> -149.6381). Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from Jonathan de Ferranti's 3" dem based on Codilean (2006) and Li (2013). 10Be concentration uncertainty changed for samples CHU8 (157000 -> 15700) and CHU69 (49000 -> 19000). 10Be standard assumed to be 07KNSTD. Sampling year assumed to be 2015. Group ID based on sample location and geomorphology. Valletta et al. (2017) Sample density assumed to be 2.65 g/cm3. Topographic shielding factors set to 1 for all samples assuming no shielding of boulder-covered cobbles. Sampling year assumed to be 2015. Group ID based on sample location and geomorphology. Van der Wateren et al. (1999) Latitudes and longitudes based on map figures and Google Earth. Sample thickness assumed to be 4 cm. Sample density assumed to be 2.65 g/cm3. 10Be standard assumed to be S555. 26Al standard assumed to be ZAL94. Sampling year based on sample names. Group ID based on sample location and geomorphology. Wang et al. (2003) Sample thickness assumed to be 4 cm. Topographic shielding factor assumed to be 1. 10Be concentration uncertainty assumed to be 5%. 10Be standard assumed to be NIST_Certified. Sampling year assumed to be 2001. One sample and one group ID. Wang et al. (2006) Sample thickness assumed to be 4 cm. Sample density assumed to be 2.65 g/cm3. Topographic shielding factor for sample "X14" based on samples "TB-08-10" and "TB-08-18" from Fu et al. (2013). 10Be concentration uncertainty assumed to be 5%. 10Standard assumed to be NIST_Certified. Sampling year assumed to be 2004. Group ID based on sample location and geomorphology. Wang et al. (2013) Sampling year assumed to be 2011. Group ID based on publication. Ward and Anderson (2011) Latitudes, longitudes, and elevations based on map figures and Google Earth. Sample thickness assumed to be 3 cm. Topographic shielding factors calculated from Jonathan de Ferranti's 3" dem based on Codilean (2006) and Li (2013). Sampling year assumed to be 2009. Group ID based on publication. Ward et al. (2007) Longitude for sample "YUK-05-001" adjusted to match description and elevation. Sample density assumed to be 2.65 g/cm3. 10Be standard assumed to be KNSTD. Sampling year assumed to be 2005. Group ID based on sample location and geomorphology. Ward et al. (2009) Sampling year assumed to be 2007. Group ID based on sample location and geomorphology. Ward et al. (2015) Sampling year assumed to be 2012 based on "Chaj" sample names. Group ID based on sample location and geomorphology. Welten et al. (2008) Latitudes amd longitudes based on map figures and Google Earth. Sample thickness assumed to be 3 cm. Sample density assumed to be 2.65 g/cm3. Topographic shielding factor assumed to be 1. Sampling year assumed to be 2006. One sample (two measurements) and one group ID. Wesnousky et al. (2012) All sample data present in publication. Group ID based on publication. Wesnousky et al. (2016) Sampling year assumed to be 2008 for Sierra Nevada samples and 2003 for Ruby Mountains samples. Group ID based on publication. Seven samples grouped with Rood et al. (2011) samples. White and Fink (2014) All sample data present in publication. Group ID based on publication. White et al. (2009) Latitudes amd longitudes based on map figures and Google Earth. Sample thickness assumed to be 4 cm. Sample density assumed to be 2.65 g/cm3. One group ID for both samples (both samples from one location). White et al. (2011) Sampling year assumed to be 2009. Group ID based on sample location and geomorphology. Wilson et al. (2013a) Sampling year assumed to be 2011. One group ID for all samples (all samples from one location). Wilson et al. (2013b) Sampling year assumed to be 2011. One sample and one group ID. Wilson et al. (2017) Sampling year assumed to be 2015. One group ID for all samples (all samples from one location). Winkler (2014) Coordinates adjusted for 15 samples based on Google Earth and Figure 2. Samples SK37 and SK37a are separate samples from one boulder and it is presumably the same with samples SK35/SK35a. Group ID based on publication. Winsor et al. (2014) Sampling year based on sample names. Group ID based on sample location and geomorphology. Winsor et al. (2015) Sampling year based on sample names. Group ID based on sample location and geomorphology. Wirsig et al. (2016a) Sampling year assumed to be 2013 (cf. Wirsig et al. 2016c). One group ID for all samples (all samples from one location). Wirsig et al. (2016b) Sampling year assumed to be 2014. Group ID based on sample location and geomorphology. Wirsig et al. (2016c) All sample data present in publication. Samples GELM10 and GELM11 are separate samples from one boulder. Group ID based on sample location and geomorphology. Wirsig et al. (2017) Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2014. Group ID based on sample location and geomorphology. Wüthrich et al. (in press) Sample density assumed to be 2.65 g/cm3. Sampling year assumed to be 2016. Group ID based on publication. Xu et al. (2013) Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names. Group ID based on publication. Yamane et al. (2011) Latitudes amd longitudes based on map figures and Google Earth. Sampling year assumed to be 2009. Group ID based on sample location and geomorphology. Yamane et al. (2015) Latitudes and longitudes based on map figures and Google Earth (for "870121-01" based on Matsuoka et al. (2006) sample). Sample thickness and topographic shielding based on email contact with Yusuke Yokoyama. Sampling year based on sample names. Group ID based on sample location and geomorphology. Young et al. (2009) Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names. Group ID based on publication (Figure 7). Young et al. (2011a) Sample density assumed to be 2.65 g/cm3. 10Be concentrations and uncertainties derived from Young et al. (2013: QSR). Sampling year based on sample names. Group ID based on sample location and geomorphology. Young et al. (2011b) Sampling year based on sample names. Group ID based on sample location and geomorphology. Young et al. (2011c) Latitude for sample "FST08-04" derived from Young et al. (2013: QSR). Sample density assumed to be 2.65 g/cm3. Sampling year based on sample names. Group ID based on sample location and geomorphology. One sample grouped with Corbett et al. (2011) sample. Young et al. (2012) Sampling year based on sample names. Group ID based on sample location and geomorphology. One sample grouped with Briner et al. (2006) sample. Young et al. (2013a) Sampling year based on samples names. Group ID based on sample location and geomorphology. Young et al. (2013b) Topographic shielding factors for "CI" and "CR" samples calculated from Jonathan de Ferranti's 3" dem based on Codilean (2006) and Li (2013). Sampling year based on sample names. Group ID based on publication. Seven samples are re-measurements of Briner et al. (2007) samples. Young et al (2015) All sample data present in publication. Group ID based on publication. Young et al. (2016) All sample data present in publication. Group ID based on sample location and geomorphology. Zahno et al. (2009) Sampling year assumed to be 2007. Samples TRD-13A and TRD-13B are separate samples from one boulder. Samples TRD-18A and TRD-18B are separate samples from one boulder. Samples TRD-07A and TRD-07B are separate samples from one boulder. Samples TRD-11 (two samples) are separate samples from one bedrock surface. Group ID based on sample location and geomorphology. Zahno et al. (2010) Sampling year assumed to be 2008. Group ID based on sample location and geomorphology. Zech (2012) Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). Sampling year assumed to be 2010. Group ID based on publication (Figure 2). Zech et al. (2005) Latitudes and longitudes based on map figures and Google Earth. Sample density assumed to be 2.65 g/cm3. 10Be standard assumed to be S555. Sampling year assumed to be 2003. Group ID based on publication. Zech et al. (2006) Latitudes and longitudes based on map figures and Google Earth. Sample thickness from Zech et al. (2017). Sample density from Zech et al. (2017). 10Be uncertainty based on Zech et al. (2017). 10Be standard from Zech et al. (2017). Sampling year assumed to be 2004. Group ID based on sample location and geomorphology. Zech et al. (2007a) Latitudes and longitudes from Zech et al. (2017). Sample thickness from Zech et al. (2017). Sample density from Zech et al. (2017). Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). 10Be concentration from Zech et al. (2017). 10Be standard from Zech et al. (2017). Sampling year assumed to be 2005. Group ID based on sample location and geomorphology. Zech et al. (2007b) Latitudes and longitudes derived from May et al. (2011) for samples included and based on map figures and Google Earth for the remaining samples. Sample thickness assumed to be 3.5 cm. Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). 10Be standard assumed to be S555. Sampling year assumed to be 2005. Group ID based on sample location and geomorphology. Zech et al. (2009a) Latitudes and longitudes based on map figures and Google Earth. Sample thickness back-calculated from thickness factor in Table 1. Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). 10Be concentration from Zech et al. (2017). Sampling year assumed to be 2007. Group ID based on sample location and geomorphology. Zech et al. (2009b) Sampling year assumed to be 2007. Group ID based on sample location and geomorphology. Zech et al. (2010) Latitudes and longitudes based on map figures and Google Earth. Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). Sampling year assumed to be 2008. Group ID based on publication. Zech et al. (2011) Latitudes and longitudes from Zech et al. (2017). Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). Sampling year assumed to be 2009. Group ID based on sample location and geomorphology. Zech et al. (2013) Sampling year assumed to be 2011. Group ID based on sample location and geomorphology. Zech et al. (2017) Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). 10Be concentrations for LL samples based on email contact with Jana Zech. Sampling year assumed to be 2010. Group ID based on sample location and geomorphology. Sample RU22 assumed to be a bedrock sample - all other samples assumed to be boulders. Zhang et al. (2014) Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). 10Be standard assumed to be 07KNSTD/NIST_27900. 26Al standard assumed to be Z92-0222. Sampling year assumed to be 2012. Group ID based on publication. Zhang et al. (2015) Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). 10Be standard assumed to be NIST_27900. 26Al standard assumed to be Z92-0222. Sampling year assumed to be 2012. Group ID based on sample location and geomorphology (three separate groups). Zhang et al. (2016a) Sampling year based on sample names. Group ID based on publication. Zhang et al. (2016b) Sampling year based on sample names. Group ID based on publication. Zhou et al. (2007) Sample thickness and 10Be concentrations based on email contact with Shangzhe Zhou and Liubing Xu. Sample density assumed to be 2.65 g/cm3. Topographic shielding factors calculated from SRTM 30 m dem based on Codilean (2006) and Li (2013). 10Be standard assumed to be KNSTD. Sampling year assumed to be 2005. Group ID based on publication.