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January 12, 2020

Fiero Glacier, Chile Retreat Lago Fiero Expansion

Fiero Glacier in 1987 Landsat and 2020 Sentinel images.  Red arrow indicates 1987 terminus location, yellow arrow 2020 terminus lcoation, and purple dots the snowline. Point A,B and C represent locations where bedrock has expanded. Fiero Glacier is an outlet glacier draining the northeast quadrant of the Northern Patagonia Icefield (NPI) terminating in Lago Fiero. Loriaux and Casassa (2013) examined the expansion of lakes of the Northern Patagonia Ice Cap. …

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January 6, 2020

Sona and Meola Glacier Retreat Dhauliganga Basin, India

Sona Glacier (SG) and Meola Glacier (MG) in 1993 and 2019 Landsat images. Red arrow indicates 1993 terminus location of Sona Glacier and Yellow arrow the 2019 terminus location.  The orange arrow marks the 1993 downglacier limit of clean ice, below is debris covered ice.  Point A marks a small expanding rock outcrop amidst glacier. Point B marks north lateral moraine exposure of Meola Glacier. The Dhauliganga River is in …

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December 29, 2019

Mount Everest Region Glaciers December 2019 Limited Accumulation Area

Mount Everest region snowline identified on Dec. 11, 2019 Landsat image (yellow dots).  Green dots indicate the terminus and pink arrows flow direction of specific glaciers: T=Trakarding, DN=Drogpa Nagtsang, M=Melung, BK=Bhote Koshi, S=Shalong, Y=Yanong, G=Gyabarg, YN=Yanong North, GY=Gyachung, J=Jiuda, R=Rongbuk, ER=East Rongbuk, I=Imja, L=Lhotse, M=Marala, K=Khumbu, N=Ngozumpa. The winter monsoon for the Himalaya is a dry cold period with limited new snow accumulation.  The Landsat image of Dec. 11, 2019 …

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December 23, 2019

Kerguelen Island Glacier Retreat Expands Lake District

Eastern Outlet glaciers of Cook Ice Cap in a 2001 Landsat and 2019 Sentinel image indicating retreat from 2001 terminus positions (red arrows) to 2019 terminus location (yellow arrows). The east side of the Cook Ice Cap on Kerguelen Island outlet glaciers have retreated expanding and forming a new group of lakes (Pelto, 2016).  Here we examine the changes from 2001-2019 along using Landsat and Sentinel imagery. Retreat of glacier …

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December 16, 2019

Stave River, BC Run of River Hydropower Changes with Glacier Retreat

Stave Glacier area in 1992 and 2019 Landsat images illustrating the loss of glacier area.  Red arrows indicate 1992 terminus location, yellow arrow 2019 terminus location, Point 1-3 are proglacial lake that are evolving, P=Piluk Glacier and S=Stave Glacier. Stave River drains into Stave Lake and has a 40 km length above the lake.  The basin has a glaciated area of 32 km2. The basin above Stave Lake has two …

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December 11, 2019

Austre Torellbreen, Svalbard Retreat and Nunatak Expansion

Austre Torellbreen in 2000 and 2019 Landsat images.  Red arrow is the 2000 terminus location, yellow arrow the 2019 terminus location. Point 1,2 and 3 are nunatak areas that are expanding. Austre Torellbreen is an outlet glacier on the southwest coast of Svalbard.  It is just west of calving glacier that are retreating such as Paierbreen and Samarinbreen and adjacent to the land terminating Nannbreen. Blaszczyk et al (2008) report …

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December 4, 2019

Wright Glacier, Alaska Snowline and Terminus Retreat

Wright Glacier in 1984 and 2019 Landsat images.  The red arrow indicates 1984 terminus location, yellow arrow 2019 terminus location, pink arrow where the surface slope steepens and red dots indicate the snowline.  Wright Glacier is the largest glacier draining an icefield just south of the Taku River and the larger Juneau Icefield. The glacier accumulation zone is mainly in British Columbia.  The glacier filled a lake basin in 1948 …

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November 23, 2019

Kropotkina, Novaya Zemlya Retreat Opens 12 km2 Embayment 1988-2019

Kropotkina Glacier, Novaya Zemlya in 1988 and 2019 Landsat images. Red arrow marks the 1988 terminus location and yellow arrow the 2019 terminus location.  Point A and B mark nunataks in 1988. Kropotkina Glacier is a tidewater glacier on the southeast coast of Novaya Zemlya that drain into Vlaseva Bay.  The glaciers terminate in the Kara Sea and has been retreating like all tidewater glaciers in Novaya Zemlya LEGOS, 2006 .  The map shown below from …

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November 16, 2019

Steffen Glacier, Chile Calving Retreat Acceleration 2019

Steffen Glacier in 1987 and 2019 Landsat images.  Red arrow is 1987 terminus location, green arrow 2015 terminus location, yellow arrow 2019 terminus location, orange arrow an area of expanding debris cover and the pink arrow locations indicating water level decline in proglacial lakes by the northwest and midwest secondary terminus. The terminus locations are also noted by red dots for 1987 and yellow dots for 2019. Steffen Glacier is …

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November 10, 2019

Shie Glacier, Bhutan-China Retreat Reduces Lake Contact

Shie Glacier Bhutan-China in Landsat images from 1996 and 2019.  Red arrow is the southern terminus location in 1996, yellow arrow the 2019 terminus location and red dots the margin of the eastern terminus in contact with the lake in 1996. Shie Glacier terminates in a lake on the northern flank of the Bhutan Himalaya draining north from Kangphu Kang, in a region that is claimed by both China and …

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