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September 23, 2020

Ellsworth Glacier, Alaska Calves Major Iceberg in 2020

Ellsworth Glacier in Landsat images from 2018, 2019 and 2020. Red arrow is the 2016 terminus location, yellow arrow is the 2020 termins location, pink arrow is the rift, purple dots is the snowline, iceberg is Point A. Glacier retreated 2.4 km, main iceberg 1 km2 Ellsworth Glacier is a valley glacier draining south from Sargent Icefield on the Kenai Peninsula in Alaska. Along with the Excelsior Glacier it has been the longest …

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September 14, 2020

Leningradskiy Ice Cap Snowcover Vanishes in 2020 More Thinning, Svernaya Zemlya

Leningradskiy Ice Cap  north to south strip in 2000 and 2020 Landsat images illustrating thinning leading to separation of parts of the ice cap at Point 1 and 4 and expansion of bedrock leading to merging bedrock regions at Point 1 and 2. R=snow/firnpack saturated with meltwater and consequent potential refreezing. S=superimposed ice development from surface refreezing. Leningradskiy Ice Cap is oriented east to west across Bolshevik Island in the …

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September 9, 2020

Khanasankoi Glacier, Russia Separation and Full Snowcover Loss

Khasankoi Glacier in 1985, 1998, 2013 and 2020 Landsat imagery with Point 1-4 indicating locations where bedrock expansion is occurring with Point 1 and 3 separating the glacier into three parts. Note complete lack of snowcover on 8-26-2020. Khasnakoi Glacier is a north facing slope glacier just south of Mount Elbrus that drains into the Kuban River. The Greater Caucasus contain approximately 2000 glaciers with a total area of ~1200 …

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August 31, 2020

North Cascade Glacier Climate Project Observations 2020, 37th Field Season

The North Cascade Glacier Climate Project 2020 field season was our 37th consecutive year of glacier observations.  The field team consisted of Cal Waichler, Mariama Dryak, Jill Pelto and Mauri Pelto.  Each team member has studied glaciers on more than one continent and is passionate about science communication, using either art, videography or writing. Mauri Pelto, Jill Pelto, Cal Waichler and Mariama Dryak from left to right on Easton Glacier …

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August 27, 2020

Hochstetter Ice Cap Loses All Snowcover in 2020, Franz Josef Land

Landsat images from 1999, 2015 and 2020 of Hochstetter ice Cap.  Snowcover=100% in 1999, 80% in 2015 and 0% in 2020. Hochstetter Ice Cap covers most of Hocstetter Island (Ostrov Khokhshtettera) in the the southern part of the Franz Josef Land archipelago.  Situated ~1000 km from the North Pole this area is known for its white ice caps and cold summer temperature averaging 2 C.  The lack of sea ice …

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August 16, 2020

Mendeleevbreen/Øydebreen, Svalbard Terminus Retreat and Snowline Rise

Øydebreen (O) and Mendeleevbreen (M) in 2002 and 2020 Landsat images.  Red arrow is the 1990/2002 terminus, yellow arrow the 2020 terminus and purple dots the snowline. Øydebreen and Mendeleevbreen are a pair of glaciers in Sørkapp Land, Svalbard that a share a divide. Mendeleevbreen flows north to Hornsund and Øydebreen south to Isbutka, meeting at the ice divide at 300 m.  The Institute of Geophysics Polish Academy have maintained …

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July 28, 2020

NORTH CASCADE GLACIER CLIMATE PROJECT 2020-37th Annual Field Program

Field season images from 2019 indicating crevasse stratigraphy, annotated by Clara Deck. Director: Mauri S. Pelto, [email protected] College Field Artist & Scientist: Jill Pelto, [email protected] Who we are? NCGCP was founded in 1983 to identify the response of North Cascade glaciers to regional climate change, particularly changes in mass balance, glacier runoff and terminus behavior.   NCGCP is a field project that has a broader interdisciplinary scope and examines more glaciers than any …

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July 25, 2020

Dzhikiugankez Glacier, Russia Persistent Limited Retained Snowpack 2013-2020

Dzhikiugankez Glacier in 1985 and 2020 Landsat images with the snowline shown by purple dots. A tributary at Point A has disappeared and tributary at the red arrow has separated.  Thinning and marginal retreat is emphasized by blue and green arrows. Dzhikiugankez Glacier (Frozen Lake) is a large glacier on the northeast side of Mount Elbrus, Caucasus Range. The primary portion of the glacier indicated in the map of the …

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July 17, 2020

Oscar Lake Expansion Carves Away at Brady Glacier, Alaska

Oscar Lake growth on the east margin of Brady Glacier in Landsat images from 2000-2020. Point A indicates glacier tongue that becomes iceberg. Blue arrows indicate flow direction. Brady Glacier,  is a large Alaskan tidewater glacier, in the Glacier Bay region that is beginning a period of substantial retreat Pelto et al (2013).   The glacier has a number of expanding lakes that are expanding as the secondary termini feeding them retreat. …

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July 10, 2020

Harrietbreen, Svalbard Retreats From Coast Loses Accumulation Zone

Harrietbreen (H) and Kjerulfbreen (K) in 1990 and 2020 Landsat images.  Red arrow 1990 terminus, yellow arrow 2020 terminus and purple dots the snowline.  No snow on Harrietbreen in early July 2020. Point 1 and 2 are divides between glaciers. Harrietbreen is small glacier that feeds into Trygghamna a small fjord the is part of the large Isfjorden on the east coast of Svalbard, mergin with Kjerulfbreen near the terminus.  …

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