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You are browsing the archive for iceland glacier retreat Archives - From a Glacier's Perspective.

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 …

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June 13, 2017

Torfajökull, Iceland Accumulation Zone Demise Drives Recession

Torfajökull in 1994, adn 2014 Landsat images.  Note the lack of retained snowpack in 2014 and emerging bedrock areas within icecap, purple arrows. Torfajökull is a small ice cap north of  Myrsdaljökull in Iceland.  The glacier’s lowest elevation is 750 m and the highest elevation is 1150 m.  This low of an elevation range in a climate driving higher snowlines places this type of ice cap at great risk for …

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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 …

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October 26, 2015

Blágnípujökull, Iceland Retreat 1986-2015

Blágnípujökull comparison in Landsat imagery from 1986 and 2014.  Blágnípujökull is an outlet glacier on the western side of Hofsjökull. The Iceland Glaciological Society spearheads an annual terminus monitoring program led by Oddur Sigurðsson. This data set enabled an examination of glacier response to climate change in Iceland from 1930-1995 by Tómas Jóhannesson, Icelandic Meteorological Office and Sigurðsson (1998). This illustrated that Hofsjökull glaciers retreated little from 1950 to 1990, but …

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February 13, 2015

Eiriksjökull Retreat, Iceland

Eiriksjökull  is an ice cap just west of Langjökull In central Iceland.  Here we examine its main western outlet the Braekur using Landsat imagery from 1989 to 2014.  The Icelandic Glaciological Society website on terminus variations is the source of the map for the glacier. The IGS program monitors 50 glaciers, all of them are currently retreating.  Eiriksjökull ,  is not one that is in this monitoring program.  In 1989 the Braekur …

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January 27, 2011

Tungnaarjökull Retreat, Iceland

Tungnaarjökull drains the west side of the Vatnojökull Icecap. The glacier begins just west of the Grimsvotn Volcano at 1500 m. Just to the north of this large outlet glacier, 350 square kilometers, is the Loki Volcano. The first image below denotes these volcanoes and the epicenter of recent earthquakes. The volcanic activity is recorded in the dark ash layers that fall on the glacier in the accumulation area and …

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