You are browsing the archive for Glacier Observations Archives - From a Glacier's Perspective.

August 14, 2017

Canadian Columbia River Basin Winter 2016-2017: A Late Rally

Guest Post by Ben Pelto, PhD Candidate, UNBC Geography, As the summer ticks by and the fall glacier field season approaches, I’ve realized that I never put out a winter 2016-2017 synopsis, so, like the snowfall this year, it’s arrived late. May 2017, Jesse Milner of the ACMG on the Nordic Glacier in front of the “meteor strike” a newly exposed rock face that spalls ice regularly. Photo by …


June 27, 2017

Mensu Glacier, Siberia Russia Retreat 1994-2016

Mensu Glacier, Russia in comparison of 1994 and 2016 Landsat images.  Red arrow is the 1994 terminus, yellow arrow 2016 terminus, purple arrow a tributary and purple dots the snowline.  Mensu Glacier (Lednik Mensu) drains northeast from Gora Belukha in the Russian Altai.  The glacier drains into the Ob River and then the Arctic Ocean.  This glacier has not been the focus of detailed research to date. Khromova et al (2014) report …


June 5, 2017

Llewellyn Glacier, BC Proglacial Lake Merging From Retreat

Llewellyn Glacier comparison in 1984 Landsat and 2016 Sentinel images.  Red arrows the 1984 terminus locations for proglacial lakes A-D, yellow arrows the 2016 terminus locations for A and B. Point E was the peninsula separating proglacial lakes A and B, which are now joined due to glacier retreat.  The second largest glacier of the Juneau Icefield is the Llewellyn Glacier which is in British Columbia. The Juneau Icefield Research …


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 …


February 17, 2017

State of Alpine Glaciers in 2016-Negative for 37th Consecutive Year

Figure 1. Global Alpine glacier annual mass balance record of reference glaciers submitted to the World Glacier Monitoring Service. Each year I write the section of the BAMS State of the Climate on Alpine Glaciers.  What follows is the initial draft of that with a couple of added images and an added paragraph. The World Glacier Monitoring Service (WGMS) record of mass balance and terminus behavior (WGMS, 2015) provides a …


January 12, 2017

Recent Climate Change Impacts on Mountain Glaciers – Volume

Landsat Image of glaciers examined in the Himalaya Range: Chapter 10 that straddles a portion of Sikkim, Nepal and Tibet, China. Notice the number that end in expanding proglacial lakes.  This January a book I authored has been published by Wiley. The goal of this volume is to tell the story, glacier by glacier, of response to climate change from 1984-2015. Of the 165 glaciers examined in 10 different alpine …


January 4, 2017

Gangotri Glacier Expanded Melt Season & Melt Area in 2016

Purple dots indicate the transient snowline on Gangotri Glacier in the fall and early winter of 2016. Red arrow indicates the terminus of the glacier. The Gangotri Glacier is the largest glacier in the Bhagirathi River watershed, situated in the Uttarkashi District, India. It is one of the larger glaciers in the Himalaya, and like all of the nearby Himalayan glaciers is retreating significantly. Gangotri Glacier provides hydropower as its …


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 …


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 …


November 1, 2016

Desolation Valley, Alaska, Conversion from Glacier to Lake

  Retreat of Desolation-Fairweather Glacier from 2010-2016 in Landsat images.  The red arrow indicates 2010 terminus positions, yellow arrow the 2016 terminus. Pink arrow a delta exposed by lake level lowering. D=Desolation Glacier. Desolation Glacier flows west from the Fairweather Range into Desolation Valley where in 1986 it joined with the Fairweather Glacier flowing from the north and the Lituya Glacier flowing from the south to fill the valley with glacier …