TY - JOUR A1 - Simonsen, S. B. A1 - Johnsen, S. J. A1 - Popp, T. J. A1 - Vinther, B. M. A1 - Gkinis, V. A1 - Steen-Larsen, H. C. T1 - Past surface temperatures at the NorthGRIP drill site from the difference in firn diffusion of water isotopes JO - Clim. Past Discuss. J1 - CPD VL - 7 IS - 2 SP - 921 EP - 942 Y1 - 2011/03/02 PB - Copernicus Publications SN - 1814-9359 UR - http://www.clim-past-discuss.net/7/921/2011/ L1 - http://www.clim-past-discuss.net/7/921/2011/cpd-7-921-2011.pdf DO - 10.5194/cpd-7-921-2011 ER -