February 10, 2017

Cook Ice Cap Outlet Glacier Retreat Lake Fromation, Kerguelen 2001-17

Cook Ice Cap Outlet Glacier Retreat Lake Fromation, Kerguelen 2001-17

  Comparison of eastern outlet glaciers of the Cook Ice Cap in 2001 and 2017 Landsat images.  Red arrow indicates a location of tributary separation. Pink arrow the 2017 terminus location of the northernmost glacier. Orange arrow the 2017 terminus location of the middle glacier.  Yellow arrow tip the 2001 terminus position of glacier ending in newly formed lake.  Green arrow the southernmost glacier 2017 terminus location.  On the east side …

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February 8, 2017

Lumding Glacier Rapid Retreat, Nepal 1992-2016

Lumding Glacier Rapid Retreat, Nepal 1992-2016

Landsat comparison of Lumding Glacier terminating in Lumding Tsho. Red arrow on each Landsat image indicates 1992 terminus and yellow arrow 2016 terminus location. Lumding Glacier, Nepal terminates in Lumding Tsho, a proglacial lake, in Dudh Khosi Valley in the Mount Everest region of Nepal. This lake poses a hazard for a glacier lake outburst flood in the Dudh Khosi valley. The lake expansion results from retreat of the Lumding Glacier. International …

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February 3, 2017

Hinku Nup, Nepal Downwasting Lake Development

Hinku Nup, Nepal Downwasting Lake Development

Hinku Nup Glacier in November 2016 Sentinel 2 image.  Yellow arrows indicate three supraglacial lakes that have formed.   Hinku Nup is a valley glacier in the Dudh Khosi basin in the Mount Everest region of Nepal.  The glacier is heavily debris covered in its lowest 4 km which is a low slope section extending from 5100-4900 m.  In 1992 Landsat images there are only small supraglacial lakes, less than 100 …

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January 31, 2017

Hindle Glacier Rapid Retreat Continues, South Georgia

Hindle Glacier Rapid Retreat Continues, South Georgia

Hindle Glacier comparison in 1989, 2015 and 2017 Landsat images.  Red arrow is 1989 terminus, pink arrow the 2015 terminus and red arrow the 2017 terminus location.  South Georgia is south of the Polar Front preventing any truly warm season from persisting. The cool maritime climate leads to numerous glaciers covering a majority of the island and quite low equilibrium line altitudes.  Hindle Glacier enters Royal Bay on the east coast of …

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January 25, 2017

Columbia Glacier, Alberta 3 km Retreat 1986-2015

Columbia Glacier, Alberta 3 km Retreat 1986-2015

Comparison of Columbia Glacier, which is the glacier flowing into the lake at top in 1986 and 2015 Landsat images. The red arrow is the 1986 terminus, yellow arrow the 2015 terminus position and purple arrow the tributary. The Columbia Glacier drains the northwest side of Columbia Icefield into the Athabasca River in Alberta. The glacier in 1964 was 8.5 km long, by 1980 9.5 km long and in 2015 6.2 …

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January 20, 2017

Penny Ice Cap Northern Outlet Retreat, Baffin Island

Penny Ice Cap Northern Outlet Retreat, Baffin Island

Penny Ice Cap Northern Outlet Glacier #43 in 1989 and 2016 Landsat images. Red arrow indicates 1989 terminus, yellow arrow 2016 terminus.  Two peripheral ice masses are at Point A and B.  The primary northern outlet from the Penny ice Cap is an unnamed glacier, noted as #43 in the recent study by Van Wychen et al (2015). it is one of two large tidewater outlet glaciers on Baffin Island. Here …

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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 and images of the system taken by Jill Pelto January 2017.   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 …

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