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April 4, 2019

Norðurjökull Retreats from Hvítárvatn, Langjökull, Iceland

Norðurjökull in 1984 Landsat image and 2018 Sentinel image.  Red arrows indicate the margins of the glacier in 1984.  Purple dots indicate the snowline. Langjökull is the second largest icecap in Iceland with an area of 920 square kilometers (Jóhannesson (2009). One of the main outlet glaciers of Langjökull is the Norðurjökull which has terminated in Hvítárvatn. Hvítárvatn is a large lake that recieves 70% of its inflow from Langjökull …


November 14, 2016

Hagafellsjokull, Iceland Reflects Langjokull Thinning & Retreat

Landsat comparison of the terminus of Hagafellsjökull from 2000 and 2016.  The red arrows are the 2000 terminus, the yellow arrows the 2016 terminus.  Purple arrows indicate upglacier thinning.  Langjökull is the second largest iceap in Icalnd with an area of over 900 square kilometers. The mass balance of the icecap has been reported since 1997 and his lost over 1 m per year during this period (WGMS, 2016).  Pope …