Sjögren Glacier
Sjögren Glacier is a glacier 15 nautical miles long in the south part of Trinity Peninsula at the tip of Graham Land in the British Antarctic Territory. It flows south-east from the Detroit Plateau to the south side of Mount Wild: flows eat to enter Prince Gustav Channel opposite Röhss Bay on James Ross Island, to form Sjögren Glacier Tongue. It is north of Mount Tucker and Longing Peninsula, and north-east of Larsen Inlet.
Mount Hornsby looks over the western side of the glacier.
The glacier was roughly mapped in its lower reaches by the Swedish Antarctic Expedition under Otto Nordenskjöld in October 1903 as an ice-filled fjord; named Hj. Sjögrens Fjord after Hjalmar Sjögren (1856-1922), Professor of Geology, University of Uppsala, Sweden, 1888-94, who assisted the expedition. The feature was surveyed in its lower part as a glacier, not as a fjord, by the Falkland Islands Dependencies Survey from 'Hope Bay' in August 1945. The glacier was photographed from the air by the Falkland Islands and Dependencies Aerial Survey Expedition, 1956-57, and further surveyed from the ground by the Falkland Islands Dependencies Survey from 'Hope Bay', 1960-61.
Glaciology
The Prince Gustaf Channel was filled by an ice shelf until the late 1980s Its main sources were the Sjögren Glacier and the Röhss Glacier, which flows from James Ross Island.
The ice shelf began a gradual retreat in the late 1980s, and collapsed in January 1995. After the collapse. the Röhss Glacier rapidly retreated by about nine miles between January 2001 and March 2009, and lost more than 70% of its area. Between 1996 and 2014 the glaciers flowing into Sjögren Inlet retreated by about 38 miles. The rate of flow accelerated until 2007 in the Sjögren Glacier, and until 2004 in the Boydell Glacier.
As of 2014 the rate of flow was still about twice the rate in 1996.
Location
- Location map: 64°12’58"S, 59°10’59"W
References
- Gazetteer and Map of The British Antarctic Territory: Sjögren Glacier