Juneau Icefield
| Juneau Icefield | ||
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 Juneau Icefield |
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| location | Alaska (USA), British Columbia (Canada) | |
| Mountains | Boundary ranges | |
| surface | 3900 km² | |
| Coordinates | 58 ° 36 ′ N , 134 ° 30 ′ W | |
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The Juneau Icefield is a 3800 km² large glacier area north of Juneau , the capital of Alaska on the Inside Passage .
The ice cap extends east over the Boundary Ranges to the Canadian province of British Columbia and north to Skagway . The southern end is the Taku Inlet , which flows into the Stephens Passage at Point Arden .
The glacier area makes up almost 4% of the glaciated area of Alaska. The icefield is the breeding ground for around 140 glaciers, including the Mendenhall , Meade and Taku glaciers . The latter has a layer of ice up to 1370 m thick. The glacier area reached its greatest extent around 1700. The area has been losing massive amounts of ice since the mid-20th century, and the loss has accelerated since the turn of the millennium. While the Taku is the only larger glacier that is still growing today, the Mendenhall, for example, retreated 580 m between 1946 and 2005.
The Juneau Icefield Research Program has been monitoring the development of the Icefield's glaciers since 1948 .
The highest point in the Juneau Icefield is the border summit Devils Paw with 2593 m .
Glaciers in the Juneau Icefield (selection)
See also
literature
- Arne Friedmann: The Taku Glacier System (Juneau Icefield, Alaska), its dynamics and fluctuations . Dissertation, University of Freiburg / B. 1995.
- Calvin J. Heusser: Juneau Icefield Research Project (1949-1958) (Developments in quaternary sciences; Vol. 8). Elsevier Science & Technology, Amsterdam 2007, ISBN 978-0-444-52951-0 .
Web links
- Juneau Icefield in the United States Geological Survey's Geographic Names Information System
- Juneau Icefield Research Program (English)
- The Grevasse Zone: GPS science on the Juneau Icefield (English)
- Canadian Mountain Encyclopedia: Juneau Icefield (English)
Individual evidence
- ↑ a b Etienne Berthier u. a .: Brief communication: Unabated wastage of the Juneau and Stikine icefields (southeast Alaska) in the early 21st century . In: The Cryosphere . 2018, doi : 10.5194 / tc-12-1523-2018 .