Glacier distribution and direction in Svalbard, Axel Heiberg Island and throughout the Arctic: General northward tendencies
Glacier distribution and direction in Svalbard, Axel Heiberg Island and throughout the Arctic: General northward tendencies Arctic glaciers depend on supply of moisture, mostly from the Atlantic. The snowline is remarkably high in northeast Siberia, remote from this source. Because of differential s...
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Walter de Gruyter GmbH
2011
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crdegruyter:10.2478/v10183-011-0015-7 2023-05-15T14:43:56+02:00 Glacier distribution and direction in Svalbard, Axel Heiberg Island and throughout the Arctic: General northward tendencies Evans, Ian 2011 http://dx.doi.org/10.2478/v10183-011-0015-7 https://content.sciendo.com/view/journals/popore/32/3/article-p199.xml https://www.degruyter.com/view/j/popore.2011.32.issue-3/v10183-011-0015-7/v10183-011-0015-7.pdf unknown Walter de Gruyter GmbH Polish Polar Research volume 32, issue 3, page 199-238 ISSN 2081-8262 0138-0338 Ecology Ecology, Evolution, Behavior and Systematics journal-article 2011 crdegruyter https://doi.org/10.2478/v10183-011-0015-7 2022-07-08T14:11:43Z Glacier distribution and direction in Svalbard, Axel Heiberg Island and throughout the Arctic: General northward tendencies Arctic glaciers depend on supply of moisture, mostly from the Atlantic. The snowline is remarkably high in northeast Siberia, remote from this source. Because of differential solar radiation receipt, local glaciers have a northward-facing tendency throughout the Arctic. This is weaker than in dry mid-latitudes but low sun angles enhance the effects of shading, compensating for the broader range of aspects ( i.e. slope directions) illuminated in summer. Statistics from the World Glacier Inventory and other sources show that mass balance differences between slopes of different aspects give both more glaciers, and lower glaciers, facing the favoured direction: usually North. This is clear, for example, for local glaciers (and for all small glaciers) in central Spitsbergen and in Axel Heiberg Island. Wind effects (drifting snow to leeward slopes) are much less important, except in northwest Europe from Norway to Novaya Zemlya which is under the strong influence of westerly winds, greatest in the Polar and Sub-polar Urals. A thorough analysis is provided of aspect data for local glaciers within and near the Arctic Circle, and of variation in glacier mid-altitude with aspect and position. There is consistency between mean glacier aspect (in terms of numbers) and aspect with lowest glaciers, everywhere except in Wrangel Island. Article in Journal/Newspaper Arctic Axel Heiberg Island glacier glacier Novaya Zemlya Polar Research Svalbard Wrangel Island Siberia Spitsbergen De Gruyter (via Crossref) Arctic Axel Heiberg Island ENVELOPE(-91.001,-91.001,79.752,79.752) Heiberg ENVELOPE(13.964,13.964,66.424,66.424) Norway Svalbard Wrangel Island ENVELOPE(-179.385,-179.385,71.244,71.244) Polish Polar Research 32 3 199 238 |
institution |
Open Polar |
collection |
De Gruyter (via Crossref) |
op_collection_id |
crdegruyter |
language |
unknown |
topic |
Ecology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Ecology Ecology, Evolution, Behavior and Systematics Evans, Ian Glacier distribution and direction in Svalbard, Axel Heiberg Island and throughout the Arctic: General northward tendencies |
topic_facet |
Ecology Ecology, Evolution, Behavior and Systematics |
description |
Glacier distribution and direction in Svalbard, Axel Heiberg Island and throughout the Arctic: General northward tendencies Arctic glaciers depend on supply of moisture, mostly from the Atlantic. The snowline is remarkably high in northeast Siberia, remote from this source. Because of differential solar radiation receipt, local glaciers have a northward-facing tendency throughout the Arctic. This is weaker than in dry mid-latitudes but low sun angles enhance the effects of shading, compensating for the broader range of aspects ( i.e. slope directions) illuminated in summer. Statistics from the World Glacier Inventory and other sources show that mass balance differences between slopes of different aspects give both more glaciers, and lower glaciers, facing the favoured direction: usually North. This is clear, for example, for local glaciers (and for all small glaciers) in central Spitsbergen and in Axel Heiberg Island. Wind effects (drifting snow to leeward slopes) are much less important, except in northwest Europe from Norway to Novaya Zemlya which is under the strong influence of westerly winds, greatest in the Polar and Sub-polar Urals. A thorough analysis is provided of aspect data for local glaciers within and near the Arctic Circle, and of variation in glacier mid-altitude with aspect and position. There is consistency between mean glacier aspect (in terms of numbers) and aspect with lowest glaciers, everywhere except in Wrangel Island. |
format |
Article in Journal/Newspaper |
author |
Evans, Ian |
author_facet |
Evans, Ian |
author_sort |
Evans, Ian |
title |
Glacier distribution and direction in Svalbard, Axel Heiberg Island and throughout the Arctic: General northward tendencies |
title_short |
Glacier distribution and direction in Svalbard, Axel Heiberg Island and throughout the Arctic: General northward tendencies |
title_full |
Glacier distribution and direction in Svalbard, Axel Heiberg Island and throughout the Arctic: General northward tendencies |
title_fullStr |
Glacier distribution and direction in Svalbard, Axel Heiberg Island and throughout the Arctic: General northward tendencies |
title_full_unstemmed |
Glacier distribution and direction in Svalbard, Axel Heiberg Island and throughout the Arctic: General northward tendencies |
title_sort |
glacier distribution and direction in svalbard, axel heiberg island and throughout the arctic: general northward tendencies |
publisher |
Walter de Gruyter GmbH |
publishDate |
2011 |
url |
http://dx.doi.org/10.2478/v10183-011-0015-7 https://content.sciendo.com/view/journals/popore/32/3/article-p199.xml https://www.degruyter.com/view/j/popore.2011.32.issue-3/v10183-011-0015-7/v10183-011-0015-7.pdf |
long_lat |
ENVELOPE(-91.001,-91.001,79.752,79.752) ENVELOPE(13.964,13.964,66.424,66.424) ENVELOPE(-179.385,-179.385,71.244,71.244) |
geographic |
Arctic Axel Heiberg Island Heiberg Norway Svalbard Wrangel Island |
geographic_facet |
Arctic Axel Heiberg Island Heiberg Norway Svalbard Wrangel Island |
genre |
Arctic Axel Heiberg Island glacier glacier Novaya Zemlya Polar Research Svalbard Wrangel Island Siberia Spitsbergen |
genre_facet |
Arctic Axel Heiberg Island glacier glacier Novaya Zemlya Polar Research Svalbard Wrangel Island Siberia Spitsbergen |
op_source |
Polish Polar Research volume 32, issue 3, page 199-238 ISSN 2081-8262 0138-0338 |
op_doi |
https://doi.org/10.2478/v10183-011-0015-7 |
container_title |
Polish Polar Research |
container_volume |
32 |
container_issue |
3 |
container_start_page |
199 |
op_container_end_page |
238 |
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1766315503242969088 |