October 23, 2020

Tungnafellsjökull, Iceland Recession and Thinning 1999-2020

Tungnafellsjökull Ice Cap in 1999 and 2020 Landsat images indicating  terminus changes at three northern outlets, red arrows, and at four locations of bedrock exposure. Tungnafellsjökull Ice Cap is a ~32km2 ice cap located between Vatnajökull and Hofsjökull.  Gunnlaugsson (2016) reported on the mass balance changes of the Tungnafellsjökull Ice Cap and found it had lost 20 of its volume and 16% of its area from 1960-2013.  The ice cap …


October 16, 2020

Whiting River Headwater Glacier, British Columbia Separates into Four

Whiting River headwaters glaciers in 1984 and 2020 Landsat images.  The red arrows indicate 1984 terminus positions, yellow arrow the 2020 terminus locations, pink arrows locations of glacier detachment and purple dots the snowline. In Northwest British Columbia on the northeast side of the Stikine Icefield the Whiting Rver drains a series of glaciers, many unnamed.  Here we are focusing on a pair of glaciers just west of Whiting Lake …


October 9, 2020

Franklin Glacier, British Columbia Tributary Detachment and Retreat 1987-2020

Franklin Glacier, British Columbia in 1987 and 2020 late summer Landsat images.  Red arrow is the 1987 terminus, yellow arrow the 2020 terminus, and purple dots the snowline.   Point 1 is the junction with Dauntless Glacier, Point 2 is the junction with an unnamed glacier, Point 3 is where Whitetip Glacier joins the glacier, and Point 4 is where Jubilee Glacier previously joined. Franklin Glacier is one of the largest …


October 1, 2020

Jiemayangzong Glacier, Tibet Retreat, Separation and Lake Expansion 1991-2020

Jiemayangzong Glacier in 1991 and 2020 Landsat images.  The red arrow is the 1991 terminus location, yellow arrow is the 2020 terminus location and purple dots mark the snowline. Point A indicates a tributary that has disconnected, while bedrock expanded at Point B.  Jiemayangzong Glacier drains east from 6200 m peaks along the Nepal-China border. The glacier ends in a lake- Jiemayangzong Tso. Ren et al (2016)  identify this as …


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 …


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 …


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 …


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 …


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 …


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 …