Advertisement

July 29, 2019

36th Annual North Cascade Glacier Climate Project Field Season Begins

Fieldwork includes terminus surveys, glacier runoff measurement and mass balance measurements Field Season Begins August 1 Who we are? The North Cascade Glacier Climate Project (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.   This was prompted by the  National Academy of Sciences listing this as a high priority and a personal …

Read More >>



July 25, 2019

Porcupine Glacier Major Iceberg Turns 3 Years Old, What Next?

Porcupine Glacier in Landsat images from 2016 and 2018 and 2019 Sentinel Image.  Iceberg A and Ice tongue B are indicated on each. The haziness in 2019 is forest fire smoke. The yellow arrows mark the 2019 terminus location. Porcupine Glacier is a 20 km long outlet glacier of an icefield in the Hoodoo Mountains of Northern British Columbia that terminates in an expanding proglacial lake. During 2016 the glacier …

Read More >>



July 17, 2019

Mendenhall Glacier, Alaska Accumulation Zone Shrinks

Mendenhall Glacier in Landsat images from 1984 and 2018.  Yellow arrows indicates 1984 terminus location, read arrow the Suicide Basin tributary and the purple dots the snowline. Mendenhall Glacier is the most visited and photographed terminus in the Juneau Icefield region. The glacier can be seen from the suburbs of Juneau.  Its ongoing retreat from the Visitor Center and the expansion of the lake it fills is well chronicled.  Here …

Read More >>



July 7, 2019

Penny Ice Cap NW Thinning and Retreat Evident

The Northwest (NW) and Northnorthwest (NNW) outlet of the Penny Ice Cap in 1991 and 2019 Landsat images. Red arrow indicates the 1991 terminus location. Point 1 is a large proglacial, Point 2-4 are areas of emerging and expanding bedrock amidst the ice cap. The two largest outlet glaciers of the NW quadrant of the Penny Ice Cap feed the Isurtuq River.  In 1991 both outlet glaciers terminated at 600 …

Read More >>



July 1, 2019

Fork Beard Glacier, Baffin Island High June 2019 Temperatures and Snowline

Fork Beard (F) and Nerutusoq Glacier (N) Baffin Island on June 1, 2019,  June 18, 2019 Sentinel images and June 30 Landsat image. Purple dots indicate the snowline.  Fork Beard Glacier (F) is an outlet glacier of a mountain glacier complex just southeast of Penny Ice Cap on Baffin Island.  Nerutusoq Glacier  (N) also drains from the same complex. Here we examine the rapid rise of the snowline from June …

Read More >>



June 24, 2019

Yelverton Glacier, Ellesmere Island Extensive Retreat and Sikussak loss 1999-2018

Yelverton Glacier (Y) and De Vries Glacier (D) in 1999 and 2018 Landsat images.  Red arrows and red dots indicate the 1999 terminus and yellow arrow the 2018 terminus.  Point M indicates the area of melange or sikussak, the boundary of this area is marked by orange dots. Purple dots mark the snowline. Yelverton Glacier is an outlet glacier from an ice cap on Northern Ellesmere Island. White and Copland …

Read More >>



June 20, 2019

Arnesenbreen, Svalbard Retreat, Separation and Surge

Arnesenbreen (A) and Bereznikovbreen (B) in 1990 and 2018 Landsat images.  Red arrow is 1990 terminus location, yellow arrow the 2018 terminus location and purple dots the transient snowline. Arnesenbreen and Bereznikovbreen are glaciers in Svalbard on the east coast of Spitsbergen that in 1990 had a joint calving front near Kapp Murchison. Blaszczyk et al’s (2009) analysis identified 163 Svalbard glaciers that are tidewater with the total length calving …

Read More >>



June 14, 2019

Varied Snowcover Extent Diagnostic of Glacier NP Glacier Climate Response

Snowcover extent in Landsat images from August, 1998 and 2018. S=Sperry, H=Harrison, J=Jackson, B=Blackfoot and P=Pumpelly Five of the eight largest glaciers in Glacier National Park are clustered in a small area: Jackson Glacier, Sperry Glacier, Pumpelly Glacier, Harrison Glacier, and Blackfoot Glacier. The USGS in Glacier National Park has over the last 15 years maintained an extensive glacier monitoring program led by Dan Fagre.  This program has led to consistent …

Read More >>



June 10, 2019

Asejiaguo Glacier, China Retreat and Lake Expansion

Asejiaguo Glacier in Landsat images from 1993 and 2018.  The yellow arrow indicates the 2018 terminus and the red arrow the 1993 terminus location.  Point 1 and 2 are areas of expanding bedrock in the 5400-5600 m. Asejiaguo Glacier drains east from the China-Nepal Border and is at the headwaters of the Yarlung Tsangpo, which becomes the Brahmaputra River.  The Yarlung Tsangpo powers the 510 MW Zangmu Hydropower Station.  Gardelle …

Read More >>



June 4, 2019

Daishapu Glacier, China Retreat Lake Expansion

Daishapu Glacier (D) and Ruorangqubu Glacier (R) in 1993 and 2018 Landsat images.  The yellow arrows indicate the 2018 terminus location of both glaciers and the purple dots the snowline. Notice the lake expansion at the terminus of both glaciers. Locations 1-4 are tributaries. Daishapu Glacier and Ruorangqubu Glacier are in the eastern Himalaya located just north of the Himalayan divide and draining north into the Yarlung Zangbo. This is …

Read More >>