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You are browsing the archive for Greenland glacier retreat Archives - AGU Blogosphere.

9 December 2016

Norrearm Fjord Glacier Retreat, Greenland

Apostelens Glacier in Norrearm Fjord Landsat comparison from 1999 to 2016. Red arrows are the 1999 terminus location, yellow arrows the 2016 terminus location and purple arrows indicate an expanding bedrock ridge. “Apostelens” Glacier drains east from a peak of the same name into an arm of Norrearm Fjord, which in turn is part of Lindenow Fjord in southern Greenland. The glacier is a short distance north of Kangersuneq Qingordleq, where …

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21 October 2016

Tasermiut Fjord, Greenland loses its Glacier Connection

  Landsat image sequence from 1999-2016.  Red arrows mark the 1999 terminus, yellow arrows the 2016 terminus and the purple arrow a tributary that detaches from Semitsiaq (S). Tasermiut Sermeq (T) retreats from the fjord.  Tasermuit Fjord in southern Greenland is noted for its beauty, and until recently the fjord terminated at a glacier front. Currently no glacier reaches to the fjord. The retreat over the last two decades is …

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30 May 2016

Tingmiarmit Glacier Retreat Separates Tributaries, South East Greenland

Tingmiarmit Glacier comparison in 1999 and 2015 Landsat images indicating the separation of tributaries at the terminus. The red arrows indicate the 1999 terminus and the yellow arrows the 2015 terminus location.  Point A is peninsula where the tributaries joined, and Point B is a nunatak just upglacier from the 2015 terminus. Tingmiarmit Glacier (Timmiarmiit also) ends in the Tingmiarmit Kangertivat Fjord in southeast Greenland.  The glacier is just south of …

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16 December 2015

Greenland Fjord Going Ice Free

Google Earth image from 2010 of Alangordlia Fjord At the AGU 2015 meeting a clear change from 15 years ago is the interdisciplinary nature of most research featured in most sessions.  In the glacier sessions there is physical oceanography, biology, climatology etc.to add in.  I will examine a SW Greenland Fjord, Alangordlia to illustrate this.  In 1987 Landsat image there are four glaciers reaching tidewater in the fjord and two …

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4 May 2015

Island Separates from Greenland Ice Sheet in 2014, Steenstrup Glacier

The retreat of outlet glaciers along the Greenland coast continues to change the maps of the region, Steenstrup Glacier located at 75.2 N in Northwest Greenland is an example of this. The glacier terminates on a series of headlands and islands, the glacier immediately to the south is Kjer Glacier. The boundary between Steenstrup Glacier and Kjer Glacier is Red Head, Steenstrup Glacier’s northern margin is near Cape Seddon. Here …

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2 April 2015

Greenland Glacier Change Index

This is an index of posts on the response of specific Greenland glaciers to climate change.  In the 1980’s when I first worked on Jakobshavn Isbrae, Greenland there was not much research occurring on the glaciers.  Today in response to the dynamic changes discussed below and glacier by glacier in the index links, Greenland is the focus of numerous extensive, ongoing and important research projects. In 2015 scientists are gearing …

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14 December 2014

East Qorqup Glacier Terminus Disintegration, Greenland

Landsat comparison of Qorqup Glacier in 1993 and 2016.  The red arrows indicate the terminus position in 1993 and the yellow arrows the 2016 terminus. Upwelling at front at pink arrow in 2016. Qorqup Glacier (Qooqqup) is in southern Greenland near Narsarsuaq. The glacier divides shortly above the terminus into an eastern and western glacier branch. Kuussuup Sermia is a distributary glacier of the Qorqup. Here we examine Landsat imagery …

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21 January 2014

Koge Bugt Outlet Glacier, Southeast Greenland

Koge Bugt Glacier is an outlet of the Greenland Ice Sheet on the southeast Coast. The glacier empties into the bay of the same name, and has three main calving fronts. This glacier is the the sweet spot for high snowfall and hence, despite its smaller size is one of the larger outlet glaciers in terms of volume. Koge Bugt Glacier is not an oft mentioned glacier it is not …

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22 March 2013

Bussemand Gletscher Retreat East Greenland

Bussemand Gletscher in East Greenland has a mixed tidewater and land based terminus. This glacier is 50 km west of Tasiilaq and just west of Nattivit Kangertivat Fjord. In this post we compare Landsat imagery from 2000 and 2012 to determine the response of this glacier to recent climate change. Espen Olsen provided the base map below and noted that Bussemand translates to bogey man.. The first two images below …

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25 March 2012

Epiq Sermia retreat, Greenland

Epiq Sermia comparsion in 1999 and 2017 Landsat images.  The main terminus retreated 1500 m on the north and 1300 m on the south side of the terminus. The area of the nunatak at Point A has expanded. There is limited change in the medial moraine at Point B. The margin of the glacier at Point C at the proglacial lake indicates a 600 m retreat. At Point D between …

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19 February 2011

Mittivakkat Glacier Retreat, Greenland

A paper by Mernild and others (2011) focusses on the Mittivakkat Glacier on the east coast of Greenland. The glacier is separate from the Greenland Ice Sheet and its climate response as a result more rapid and more similar to other alpine glaciers. Mernild and others (2011) observe that the glacier has retreated 1300 meters since 1931 and that it has had a considerable negative mass balance since 1995. Sebastian …

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