Surge-type glaciers in the Russian High Arctic identified from digital satellite imagery
Abstract Landsat digital imagery was used to search the island archipelagos of Franz Josef Land, Severnaya Zemlya and Novaya Zemlya, Russian High Arctic, for the presence of looped moraines characteristic of past glacier surges. The imagery provides almost complete summer-time coverage of the 60 000...
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Online Access: | http://dx.doi.org/10.1017/s0022143000035097 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000035097 |
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crcambridgeupr:10.1017/s0022143000035097 2024-04-28T08:07:24+00:00 Surge-type glaciers in the Russian High Arctic identified from digital satellite imagery Dowdeswell, Julian A. Williams, Meredith 1997 http://dx.doi.org/10.1017/s0022143000035097 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000035097 en eng Cambridge University Press (CUP) Journal of Glaciology volume 43, issue 145, page 489-494 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 1997 crcambridgeupr https://doi.org/10.1017/s0022143000035097 2024-04-09T06:55:54Z Abstract Landsat digital imagery was used to search the island archipelagos of Franz Josef Land, Severnaya Zemlya and Novaya Zemlya, Russian High Arctic, for the presence of looped moraines characteristic of past glacier surges. The imagery provides almost complete summer-time coverage of the 60 000 km 2 of ice in these islands. very few surge-type glaciers are identified: none in Franz Josef Land, three in Novaya Zemlya and two on Severnaya Zemlya. This contrasts greatly with Svalbard (ice-covered area 36 600 km 2 ), to the west, where 36% of glaciers and ice-cap drainage basins are inferred to surge. The strong climatic gradient across the Eurasian High Arctic, with decreasing temperature and moisture eastward, may provide a gross control on this pattern through colder glacier thermal structure, limiting basal drainage on the thinner ice masses in particular. Article in Journal/Newspaper Arctic Franz Josef Land glacier Ice cap Journal of Glaciology Novaya Zemlya Severnaya Zemlya Svalbard Cambridge University Press Journal of Glaciology 43 145 489 494 |
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Open Polar |
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Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes Dowdeswell, Julian A. Williams, Meredith Surge-type glaciers in the Russian High Arctic identified from digital satellite imagery |
topic_facet |
Earth-Surface Processes |
description |
Abstract Landsat digital imagery was used to search the island archipelagos of Franz Josef Land, Severnaya Zemlya and Novaya Zemlya, Russian High Arctic, for the presence of looped moraines characteristic of past glacier surges. The imagery provides almost complete summer-time coverage of the 60 000 km 2 of ice in these islands. very few surge-type glaciers are identified: none in Franz Josef Land, three in Novaya Zemlya and two on Severnaya Zemlya. This contrasts greatly with Svalbard (ice-covered area 36 600 km 2 ), to the west, where 36% of glaciers and ice-cap drainage basins are inferred to surge. The strong climatic gradient across the Eurasian High Arctic, with decreasing temperature and moisture eastward, may provide a gross control on this pattern through colder glacier thermal structure, limiting basal drainage on the thinner ice masses in particular. |
format |
Article in Journal/Newspaper |
author |
Dowdeswell, Julian A. Williams, Meredith |
author_facet |
Dowdeswell, Julian A. Williams, Meredith |
author_sort |
Dowdeswell, Julian A. |
title |
Surge-type glaciers in the Russian High Arctic identified from digital satellite imagery |
title_short |
Surge-type glaciers in the Russian High Arctic identified from digital satellite imagery |
title_full |
Surge-type glaciers in the Russian High Arctic identified from digital satellite imagery |
title_fullStr |
Surge-type glaciers in the Russian High Arctic identified from digital satellite imagery |
title_full_unstemmed |
Surge-type glaciers in the Russian High Arctic identified from digital satellite imagery |
title_sort |
surge-type glaciers in the russian high arctic identified from digital satellite imagery |
publisher |
Cambridge University Press (CUP) |
publishDate |
1997 |
url |
http://dx.doi.org/10.1017/s0022143000035097 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000035097 |
genre |
Arctic Franz Josef Land glacier Ice cap Journal of Glaciology Novaya Zemlya Severnaya Zemlya Svalbard |
genre_facet |
Arctic Franz Josef Land glacier Ice cap Journal of Glaciology Novaya Zemlya Severnaya Zemlya Svalbard |
op_source |
Journal of Glaciology volume 43, issue 145, page 489-494 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000035097 |
container_title |
Journal of Glaciology |
container_volume |
43 |
container_issue |
145 |
container_start_page |
489 |
op_container_end_page |
494 |
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1797576529594548224 |