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

April 9, 2019

Glaciers Retreat from Evighedsfjord, Greenland

Evighedsfjord (E) with glaciers terminating in the fjord in 2000 and 2018 Landsat images. Q=Qingua Kujatdleq is at the head of Evighedsfjord (Q), Tapa Glacier (1), Unnamed glaciers (2 and 3), and developing nunatak area (4) .  The red arrow is the 2000 terminus and the yellow arrow is the 2018 terminus.  Evighedsfjord (Kangerlussuatsiaq Fjord) in southwest Greenland has numerous glaciers that reach or did reach this 75 km long …

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October 23, 2018

Sermip Nunataa, Greenland No Longer a Nunatak

Sermip Nunataa (S) and nearby nunataks in 1993, Q, R and B in 1993 and 2018 Landsat images.  Red dots indicate the 1993 margin.  Sermip Nunataa (Nunatak-Island within ice sheet glacier) was a nunatak of the southern Greenland Ice Sheet between Sermilik Brae and Sondre Qipisaqqu Brae.  Here we examine changes from 1993-2018 of the margin of the ice sheet in the area and the impact on this and neighboring …

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June 27, 2018

Nioghalvfjerdsbræ 70 km+ Long Supraglacial stream, Greenland’s Longest?

Landsat image of Nioghalvfjerdsbræ in 2017 with supraglacial stream indicated by arrows and calving front yellow dots.  I first observed the impressive discharge and length of the supraglacial streams working on Jakobshavn Glacier more than 30 years ago.  The longest persistent supraglacial stream in Greenland at present that I am aware of is on Nioghalvfjerdsbræ (79 Glacier).  The longest streams will occur on glaciers with low slopes in the ablation zone …

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March 22, 2018

Heilprin Glacier, NW Greenland Pinning Point Decline 1987-2017

Heilprin Glacier in 1987 and 2017 Landsat images.  The ice front is shown with yellow dots. Island A, Island B and Point C also are noted. Island A and B both have reduced ice contact, but remain as important pinning points. How much longer for Island A?  Retreat from 1987-2017 is 1.6 km to the south, 1.1 km in the center and 2.2 km on the northern margin. Heilprin Glacier is …

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March 19, 2018

Sermeq Kuadtleq, Greenland Retreat Island Development Nunatak Expansion.

Sermeq Kuadtleq in Landsat images from 1999, 2013 and 2017.  The red arrow is the 1999 terminus location, yellow arrow is the 2017 terminus location. Nunatak 1 and 3 are noted and the developing Island 2.  Sermeq Kuadtleq (not only glacier in Greenland with this name) flows south to Prince Christian Sound from an icecap peripheral to, but connected to the Greenland Ice Sheet.  As such the glacier is not …

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October 11, 2017

Steenstrup Glacier, NW Greenland Releases New Island in 2017

Steenstrup Glacier front in 2015 and 2017 illustrating location with respect to the new islands at: Red Head-red arrow, Tugtuligssup Sarqardlerssuua at yellow arrow , and the 2017 new island at orange arrow.  Yellow dots indicate icefront and purple arrow another future island to be released from the glacier.   Steenstrup Glacier is located at 75.2 N in Northwest Greeland terminating in Melville Bay. The glacier terminates on a series of …

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May 30, 2017

Upernavik, NW Greenland New Islands, Nunataks and Former Glacier Base Exposed

Upernavik Glacier in Landsat images from August 2000 and August 2016.  Each Point is at the same location in both image, and the changes are noted in the discussion below.  The same locations are also identified in the July 2001 and Aug. 2016 image below.  Upernavik Glacier is on the NW Greenland Coast the next major outlet north of Rinks Glacier.  Today the glacier has four separate main calving termini, that …

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April 19, 2017

Nuusuaq Peninsula West Greenland Glacier Disintegration

Comparison of alpine glaciers on Nuussuaq Peninsula in 1990 and 2016 Landsat images.  Each arrow is at a specific location in both images exhibiting glacier separation/disintegration.  The Nuussuaq Peninsula is just north of Disko Island in West Greenland and is home to many alpine glaciers and small ice caps.  Here we examine the furthest west group of alpine glaciers on the peninsula.  This group is 125 km west of the ice …

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February 27, 2017

A River Runs 40 km Across the Greenland Ice Sheet

Supraglacial stream, on July 26, 2016 Landsat image, stretching 40 km across the ice sheet from the transient snowline, which marks the boundary between the percolation zone and the wet snow zone,  west toward the ice sheet margin, note black arrows.   The Greenland Ice Sheet has experienced a significant increase in surface melt.  This is due both to warmer temperatures and enhanced melt due to a reduction in reflectivity-albedo. The expansion …

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December 9, 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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