January 17, 2017

Erasmo Glacier, Chile Terminus Collapse

Erasmo Glacier, Chile Terminus Collapse

Erasmo Glacier, Chile, comparison in 1987 and 2016 Landsat images.  The red arrow indicates the 2016 terminus and the yellow arrow the 1987 terminus location.  Purple dots indicate the snowline and purple arrows locations of upglacier thinning. Cerro Erasmo at 46 degrees South latitude is a short distance north of the Northern Patagonia Icefield and is host to a number of glaciers the largest of which flow northwest from the …

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January 12, 2017

Recent Climate Change Impacts on Mountain Glaciers – Volume

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 …

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January 9, 2017

Coronation Glacier, Baffin Island Retreat Leads to Building a New Island

Coronation Glacier, Baffin Island Retreat Leads to Building a New Island

A Landsat image from 1989 and a Sentinel 2 image from2016 illustrate the retreat of Coronation Glacier.  Red arrows indicate the 1989 terminus and yellow arrows the 2016 terminus location.  Purple numbers 1-5 indicate locations of tributary retreat or thinning. Purple numbers 6-9 are icecaps that did not retain snowcover in 2016.  Coronation Glacier is the largest outlet glacier of the Penny Ice Cap on Baffin Island. The glacier has …

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January 6, 2017

New Zealand Glacier Retreat will Impact Hydropower

New Zealand Glacier Retreat will Impact Hydropower

Map of the Waitaki Hydropower system, from Meridian.  Hooker Glacier, Mueller, Murchison and Tasman Glacier drain into Lake Pukaki, where water level has been raised 9 m for hydropower purposes. Classen Glacier, Grey Glacier and Godley Glacier drain into Lake Tekapo. Lake Tekapo and Lake Pukaki are both utilized for hydropower. Water from Lake Tekapo is sent through a canal to Lake Pukaki. Water from Lake Pukaki is sent through a canal …

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January 4, 2017

Gangotri Glacier Expanded Melt Season & Melt Area in 2016

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 …

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December 28, 2016

Canadian Columbia Basin Glacier Fall 2016 Field Season

Canadian Columbia Basin Glacier Fall 2016 Field Season

Guest Post by Ben Pelto, PhD Candidate, UNBC Geography, pelto@unbc.ca Figure 1. An illustration of the glacier mass balance sum. Mass balance is equal to the amount of snow accumulation and the amount of ice melt over time. Traditionally, this is reported as annual mass balance (how much mass a glacier gained or lost in a particular year) and is reported in meters water equivalent (mwe). The Columbia Basin Glacier …

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December 26, 2016

Samudra Tupa Glacier, India Accelerated Retreat 1998-2016

Samudra Tupa Glacier, India Accelerated Retreat 1998-2016

Landsat Comparison from 1998 and 2016 of Samudra Tupa Glacier, India.  Red arrow is the 1998 terminus, yellow arrow the 2016 terminus, green arrow a subsidiary glacier tongue, red line and dots the snowline and pink arrow an area indicating a water level decline in the lake.  Samudra Tupa Glacier is one of the largest in the Chenab Basin, India. Maanya et al (2016) indicate the glacier terminates at 4150 …

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December 20, 2016

Has Fridtjovbreen, Svalbard Surged for the last time?

Has Fridtjovbreen, Svalbard Surged for the last time?

Fidtjovbreen, Svalbard comparison in 1998 and 2016 Landsat imagery.  Red arrow marks the 1998 terminus, yellow arrow the 2016 terminus and purple dots mark the snowline.  The Yellow numbers indicate area of separation between glaciers. Pink arrows indicate areas on the upper glacier where thinning is exposing more bedrock. F=Fridtjovbreen, S=Sagabreen, G=Gronfjordbreen Fridtjovbreen, Svalbard, is a tidewater-terminating glacier that started a 7-year surge advance during the 1990’s. This central Spitsbergen …

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December 16, 2016

Laigu Glacier, China Retreat Lake Expansion

Laigu Glacier, China  Retreat Lake Expansion

Landsat image comparison of the Laigu Glacier in 1988 and 2015.  The red arrow indicates the 1988 terminus and the yellow arrow the 2015 terminus location.  The purple dots in 2015 indicate the snowline. Laigu (Lhagu) Glacier, China is in the Kangri Karpo Mountains of the Southeast Tibet Plateau and drains into the Salween River.  This is the largest glacier in its region at 32 km in length.  The glacier …

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December 9, 2016

Norrearm Fjord Glacier Retreat, Greenland

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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