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November 7, 2017

Ryan Glacier, South Georgia Retreats from Tidewater

Ryan (R) and Brunonia Glacier (B) in 1999 and 2016 Landsat images.  Red arrows indicate the 1999 terminus and pink arrows a new proglacial lake.  Ryan Glacier and Bunonia Glacier span the width of South Georgia near its northwestern tip.  Brunonia Glacier flow east and terminates in Sunset Fjord and Ryan Glacier flows to the west into Ice Fjord, which seems more viable as a “Sunset” Fjord.  The glacier divide …

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November 3, 2017

Gråfjellsbrea, Norway Retreat Forms New Lake

Gråfjellsbrea Retreat in Landsat images from 1999 to 2017.  Red arrow indicates 1999 terminus, yellow arrow the 2017 terminus location.  Gråfjellsbrea is an outlet glacier on the northwest side of the Folgefonna  Icefield that drains into Mysevatnet.  The 2012 Norwegian Glacier Inventory notes the glacier having an area of 8.77 square kilometers in 2002.  In 2016 the Norwegian Water Resources and Energy Directorate (NVE) reported this glacier to have the greatest retreat …

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November 1, 2017

Chaxiqudong Glacier, Tibet Retreat From Lake & Tributary Separation

Chaxiqudong Glacier (C) at right and Paqu Glacier (P) at left in Landsat images from 1992 and 2017.  The red arrow indicates the terminus in 1992 and the yellow dots the 2017 margin.  Purple arrow indicates a glacier that disappeared and orange arrow separation of Paqu Glacier. Both glaciers no longer reach the lake.  Chaxiqudong Glacier and Paqu Glacier are located in a sub-range north of the Nepal-China border.  Chaxiqudong …

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October 27, 2017

Yanong Glacier, Tibet Retreat Lake Expansion 1992-2017

Yanong Glacier and North Yanong glacier in Landsat images form 1992 and 2017.  Red arrows indicate 1992 terminus and yellow arrows the 2017 terminus.  Yanong Glacier  and North Yanong Glacier drain northwest from the western flank of Cho Oyu on the Nepal-China border and are in the Tama Khosi watershed.  The glacier terminates in an expanding proglacial lake like a number of neighboring glaciers Rongbuk Glacier and Lumding Glacier.  King et …

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October 24, 2017

Gangge’er Glacier, Retreat & Tributary Separation Qilian Mt. China

Gangge’er Glacier, Qilian Mt., China comparison in 1997 and 2017 Landsat Images.  Yellow arrows indicates 2017 terminus, red arrows the 1990 terminus, and purple arrows tributaries that have detached.  The snowline is  purple dots and Points 1-3 indicate bare rock areas amidst the glacier. The largest glacier in the Gangge’er Xiaoheli Shan range of the the Qilian Mountains in China, here referred to as Gangge’er Glacier, drains northwest into the …

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October 20, 2017

Glacier Retreat Generating New Islands List

Climate change has been driving the recession of glaciers and ice sheets, which in turn has been changing our maps.  One notable category of physical geographic features indicative of the change due to the retreat is the formation of new islands.  Below is a list of new islands that this blog has identified and reported.  This is not a comprehensive list of all islands that have been formed.   Upernavik Glacier, …

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October 17, 2017

Chako Glacier, Tibet Retreats From Proglacial Lake

Chako Glacier, Tibet in Landsat images from 1991, 2001 and 2017.  Red arrow indicates 1991 terminus, yellow arrow 2017 terminus, purple tributary glacier connection and orange arrow nearby icecap. Chako Glacier flows north from Chako Peak on the Nepal-Tibet, China border, in the Lugula Himal.  Glacier runoff eventually reaches the Yarlung Tsangpo and then the Brahmaputra River. Gardelle et al, (2013) identified this glacier as part of their West Nepal region, which experienced …

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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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October 6, 2017

Klinaklini Glacier, British Columbia Retreat Generates Large Icebergs

Klinaklini Glacier comparison in Landsat images from 1987 and 2017.  Red arrow 1987 terminus, yellow arrow 2017 terminus and snowline at purple dots. Klinaklini Glacier is the largest glacier in the Coast Mountains of British Columbia between Vancouver and Prince Rupert.  The glaier drains west and south from Mt. Silverthrone.  There is significant accumulation area above 2500 m and the glacier terminates at 300 m.  GLIMS noted the area in …

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October 3, 2017

34th Annual, 2017 North Cascade Glacier Climate Project Field Season

2017 Field Season Video For the thirty fourth consecutive summer we headed into the field to monitor the continued response of North Cascade glaciers to climate change.  In 1984 when I began this program we selected 10 key glaciers to monitor.  Two of these have now disappeared.  All the glaciers have retreated extensively and lost considerable volume.  The mass balance loss is 19 m of water equivalent thickness, which is over …

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