October 18, 2018

Talchako Glacier, British Columbia Retreat 1987-2018

Talchako Glacier change revealed in 1987 and 2018 Landsat images.  Red arrow is 1987 terminus location, yellow arrow 2018 terminus, orange arrow a tributary from the north and purple dots the snowline.  Talchako Glacier is the largest outlet glacier of the Monarch Icefield in the Coast Range of British Columbia and is the headwaters of the Talchako River. VanLooy and Forster (2008) noted that the glacier retreated at a rate of …


October 15, 2018

Meade Glacier, Alaska 4 km Retreat 1986-2018

Meade Glacier in Landsat images from 1986 and 2018.  The red arrow indicates the 1986 terminus, pink arrow the 2014 terminus, yellow arrow the 2018 terminus, orange arrows tow tributaries to Meade Glacier and the purple dots the snowline. Meade Glacier drains the northwest portion of the Juneau Icefield, with meltwater entering the Katzehin River and then Chilkoot Inlet. The glacier begins in British Columbia and ends in Alaska. Here …


October 10, 2018

Vera Glacier, Novaya Zemlya Retreat

Vera Glacier in Landsat images from 1990 and 2018. Red arrow is the 1990 terminus and yellow arrow the 2018 terminus location.  Purple dots indicate the snowline, E indicates the eastern tributary and S the bedrock step. Vera Glacier is on the west coast of Northern Noyaya Zemlya terminating in a fjord  Carr et al (2017) examined Novaya Zemlya glacier retreat between 1973/76 and 2015, finding that between 2000 and 2013, retreat …


October 5, 2018

Inostrantseva Glacier, Novaya Zemlya Retreat Drives Separation

Inostrantseva Glacier (I) and Pavlova Glacier (P), Novaya Zemlya in 1995 and 2017 Landsat images.  Red arrow indicates the 1995 terminus, yellow arrow the 2017 terminus and purple dots the snowline.  Inostrantseva Glacier is on the west coast of Northern Noyaya Zemlya terminating in Inostrantseva Bay along with Pavlova Glacier.  Carr et al (2017) examined Novaya Zemlya glacier retreat between 1973/76 and 2015, finding that between 2000 and 2013, retreat rates …


October 2, 2018

High Glacier Snow Line Post-Monsoon 2018 on Bhutan-China Border

Angge Glacier (A) and Bailang Glacier (B) in China and Chubda Glacier (C) in Bhutan in Post Monsoon 1995 and 2018 Landsat images indicating the snowline purple dots is exceptionally high in 2018.  Red arrow is the 1995 terminus location and yellow arrows the 2018 terminus location. Point 1-3 are glacier passes from China into Bhutan. The end of the monsoon season leads to finally some clear satellite images of …


September 28, 2018

Taku Glacier, Alaska in 2018 Highest Snowline in 70+ years

Taku Glacier transient snowline (purple dots) in Landsat images from 7/21 and 9/16/2018. The Juneau Icefield Research Program (JIRP) has been examining the glaciers of the Juneau Icefield since 1946. Until the NASA Landsat program began, field measurements and aerial observations were the only means to observe the glaciers of the icefield. For more than 40 years it was Maynard Miller, U of Idaho, who led this expedition that has trained so …


September 24, 2018

Brady Glacier, Alaska Nunatak Expansion and High Snowline 2018

Emergence of Nunataks at Point A, B and C at 850 m on Brady Glacier from 1986 and 2018 Landsat Images.  Transient snowline on 9/21/2018 indicated by purple dots. 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). Pelto et al (2013) noted that the end of season observed transient snowline averaged 725 m from 2003-2011, …


September 21, 2018

Duiya Glacier, China Retreat Drives Lake Expansion

Duiya Glacier, China in 1990 and 2017 Landsat images.  Red arrow indicates 1990 terminus, yellow arrow the 2017 terminus, pink arrow the terminus area of Duosangpuxi purple dots the snowline Duiya Glacier, China is in the Pumqu Basin northwest of Mount Everest.  The glacier terminates in an expanding lake.  King et al (2018) report the proglacial lake is dammed by a full moraine loop, and the glacier loses mass via calving as …


September 14, 2018

Yakutat Glacier Terminus Collapse Nears Completion, 45 km2 lost 2010-2018

Landsat images from 2010 and 2018 with terminus indicated by yellow dots in both, the orange dots indicate 2010 margin on 2018 image. Point A indicates the 1987 terminus location, pink arrows indicate icebergs. Main terminus now extends south near Point C. Northern terminus extends west from Point B. Yakutat Glacier, Alaska has experienced a spectacular retreat in the last decade losing 45 km² from 2010-2018.  The Yakutat Glacier during the 1894-1895 Alaskan …


September 12, 2018

Cordova Glacier, Alaska Loses a Lake & a Tributary

Cordova Glacier retreat and glacier separation revealed by Landsat images from 1987 and 2018, red arrow is the 1987 terminus position of main glacier and tributaries, yellow arrow is the 2018 terminus location.  Purple dots indicate the snowline and the pink arrow the former location of Rude Lake.  Cordova Glacier is located at the head of the western fork of the Rude River in the Chugach Mountains, Alaska. In USGS …