Table S1: Locations and site-specific information of Greenland Ice Sheet automatic weather stations in the GC-Net (Steffen and others 1996) and PROMICE (Ahlstrøm and others, 2008) networks. Data highlighted in italics indicates stations that are no longer operational. Map Key Name Type Locality Longitude Latitude G1 G2 G3 G4 G5 G6 G7 G8 G9 G10 G11 G12 G13 G14 G15 G16 G17 G18 G19 G20 G21 G22 G23 G24 G25 G26 G27 G28 G29 G30 G31 G32 G33 G34 G35 G36 G37 G38 Swiss Camp Crawford Pt NASA-U GITS Humboldt Summit Tunu-N DYE-2 JAR 1 Saddle South Dome NASA-E Crawford P2 NGRIP NASA-SE KAR JAR 2 KULU JAR 3 Aurora Petermann ELA Petermann Glacier KAN_B KAN_L KAN_M KAN_U KPC_L KPC_U MIT NUK_L NUK_N NUK_U QAS_L QAS_U SCO_L SCO_U TAS_L TAS_U Ice Sheet Ice Sheet Ice Sheet Ice Sheet Ice Sheet Ice Sheet Ice Sheet Ice Sheet Ice Sheet Ice Sheet Ice Sheet Ice Sheet Ice Sheet Ice Sheet Ice Sheet Ice Sheet Ice Sheet Ice Sheet Ice Sheet Ice Sheet Ice Sheet Glacier Land - ice proximal Ice Sheet Ice Sheet Ice Sheet Ice Sheet Ice Sheet Ice Sheet Ice Sheet Ice Sheet Ice Sheet Ice Sheet Ice Sheet Ice Sheet Ice Sheet Ice Sheet Ice Sheet -49.33 -47.00 -49.51 -61.04 -56.83 -38.51 -33.98 -46.28 -49.70 -44.50 -44.82 -30.00 -46.85 -42.33 -42.50 -33.01 -50.09 -39.60 -50.31 -47.29 -58.07 -60.29 -50.18 -49.93 -48.82 -47.02 -24.09 -25.17 -37.83 -49.53 -49.88 -49.27 -46.85 -46.82 -26.82 -27.26 -38.90 -38.87 69.56 69.88 73.09 77.14 78.53 72.58 78.02 66.48 69.50 66.00 63.15 75.00 69.91 75.15 66.48 69.70 69.41 65.76 69.39 67.14 80.08 80.68 67.13 67.10 67.07 67.00 79.91 79.83 65.69 64.48 64.95 64.50 61.03 61.18 72.23 72.39 65.64 65.70 Elevation (m) 1176 2022 2334 1869 1995 3199 2052 2099 932 2467 2901 2614 1990 2941 2373 2579 507 878 283 1798 965 37 350 680 1270 1850 380 870 460 560 930 1140 310 890 470 1000 270 580 Data Provider GC-Net GC-Net GC-Net GC-Net GC-Net GC-Net GC-Net GC-Net GC-Net GC-Net GC-Net GC-Net GC-Net GC-Net GC-Net GC-Net GC-Net GC-Net GC-Net GC-Net GC-Net GC-Net GEUS (PROMICE) GEUS (PROMICE) GEUS (PROMICE) GEUS (PROMICE) GEUS (PROMICE) GEUS (PROMICE) GEUS (PROMICE) GEUS (PROMICE) GEUS (PROMICE) GEUS (PROMICE) GEUS (PROMICE) GEUS (PROMICE) GEUS (PROMICE) GEUS (PROMICE) GEUS (PROMICE) GEUS (PROMICE) Time Span of Used Data 06/1997-11/2004 06/1997-09/2008 07/1998-04/2006 06/1997-11/2005 05/1997-04/2007 05/1996-05/2003 05/1996-11/2006 05/1996-04/2009 06/1996-11/2008 04/1999-04/2009 04/2000-04/2008 05/1997-02/2007 n/a 07/1997-07/2005 04/1998-04/2006 n/a 07/1999-05/2006 07/1999-08/1999 01/2001-05/2003 n/a 06/2002-05/2005 06/2004-04/2008 04/2011-04/2012 09/2008-05/2012 09/2008-04/2012 04/2009-04/2012 07/2008-10/2008 04/2009-05/2012 05/2009-05/2012 08/2009-05/2012 07/2010-05-2012 07/2010-12/2011 09/2007-09/2011 09/2008-08/2011 08/2008-09/2011 08/2008-09/2011 09/2007-04/2012 05/2009-04/2012 Data Months 49 65 22 19 46 28 53 135 92 89 78 54 0 56 92 0 79 2 27 0 26 8 12 44 43 19 2 20 15 26 4 18 40 30 25 16 36 42 G39 G40 G41 G42 THU_L THU_U UPE_L UPE_U Ice Sheet Ice Sheet Ice Sheet Ice Sheet -68.27 -68.15 -54.30 -53.54 76.40 76.42 72.89 72.89 570 770 230 980 GEUS (PROMICE) GEUS (PROMICE) GEUS (PROMICE) GEUS (PROMICE) 03/2011-04/2012 07/2011-04/2012 09/2009-07/2011 09/2009-07/2010 11 10 22 22