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November 11, 2012
Porisjokull Retreat, Iceland
Porisjokull (Thorisjokull) is a small 25 square kilometer ice cap southwest of Langjokull. The top elevation of the icecap is just 1350 m. This ice caps outlet glaciers have been in retreat as have almost all Iceland glaciers in the last decade (Helgi Björnsson and Finnur Pálsson, 2008). Examination of Landsat images from 2000, 2002, 2011 and 2012, shown in that order below, are used to identify changes in Porisjokull. …