Phillips , Thomas 1 ; Steffen , Konrad 2 ; Rajaram , Harihar 3 1 CIRES, ESOC, University of Å·ÃÀ¿Ú±¬ÊÓƵ 2 CIRES, ESOC, University of Å·ÃÀ¿Ú±¬ÊÓƵ 3 University of Å·ÃÀ¿Ú±¬ÊÓƵ The Greenland Ice Sheet experiences a large amount of melt each summer forming moulins and a well developed en-glacial water...