February 24, 2017

Shoup Glacier, Alaska Retreat, Thinning, Velocity Decline

Shoup Glacier, Alaska Retreat, Thinning, Velocity Decline

Shoup Glacier comparison in 1986 and 2016 Landsat images.  The glacier retreated 1900 m in this interval.  Red arrow is 1986 terminus, yellow arrow the 2016 terminus, green arrow rock rib emerging from beneath glacier, purple dots a landslide deposit, and purple arrow the snowline. Shoup Glacier is between the Columbia Glacier and Valdez draining from the Chugach Mountains in southern Alaska.  The glacier was a tidewater terminating glacier until …

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February 21, 2017

Sulmeneva Glacier Retreat from Lakes, Novaya Zemlya

Sulmeneva Glacier Retreat from Lakes, Novaya Zemlya

Sulmeneva Glacier retreat in comparison of 1999 and 2016 Landsat images. Red arrow indicate the 1999 terminus position and yellow arrows 2016 terminus location.  Sulmeneva Bay is on the west coast of Novaya Zemlya and is the southern most extent of the continuous glaciation that extends along the northern half of the island.  Here we examine an unnamed glaciers that terminates in a piedmont lobe near the shore of Sulmeneva Bay. The …

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February 17, 2017

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

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 …

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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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