Growth and Grounding of the Ellesmere Island Ice Rises
Abstract Analysis of glaciologial data indicates that grounding of the Ward Hunt Ice Shelf and its conversion into an ice rise was primarily the result of local thickening of a floating ice shelf and the availability of a very gently sloping sea floor on which the ice shelf came to rest. Application...
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Language: | English |
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Cambridge University Press (CUP)
1972
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Online Access: | http://dx.doi.org/10.1017/s0022143000022474 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000022474 |
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crcambridgeupr:10.1017/s0022143000022474 2024-03-03T08:44:05+00:00 Growth and Grounding of the Ellesmere Island Ice Rises Lyons, John B. Ragle, R. H. Tamburi, A. J. 1972 http://dx.doi.org/10.1017/s0022143000022474 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000022474 en eng Cambridge University Press (CUP) Journal of Glaciology volume 11, issue 61, page 43-52 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 1972 crcambridgeupr https://doi.org/10.1017/s0022143000022474 2024-02-08T08:36:15Z Abstract Analysis of glaciologial data indicates that grounding of the Ward Hunt Ice Shelf and its conversion into an ice rise was primarily the result of local thickening of a floating ice shelf and the availability of a very gently sloping sea floor on which the ice shelf came to rest. Application of heat conduction theory to a series of thermal profiles through the Ward Hunt Ice Shelf, and the Ward Hunt, Camp Creek and Cape Discovery ice rises shows that present heat flow in this area of northern Ellesmere Island is more than twice normal, and that the outer and intermediate parts of the Ward Hunt ice rise grounded 250–350 years ago, during a cycle of climatic deterioration. Development and localization of ice rises along northern Ellesmere Island are strongly influenced by topography, and all ice rises we have studied seem to have formed within the past 1 600 years, possibly with major growth in the interval from 1 000 to 150 years ago. Article in Journal/Newspaper Ellesmere Island Ice Shelf Journal of Glaciology Ward Hunt Ice Shelf Cambridge University Press Ellesmere Island Ward Hunt Ice Shelf ENVELOPE(-73.499,-73.499,83.122,83.122) Journal of Glaciology 11 61 43 52 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes Lyons, John B. Ragle, R. H. Tamburi, A. J. Growth and Grounding of the Ellesmere Island Ice Rises |
topic_facet |
Earth-Surface Processes |
description |
Abstract Analysis of glaciologial data indicates that grounding of the Ward Hunt Ice Shelf and its conversion into an ice rise was primarily the result of local thickening of a floating ice shelf and the availability of a very gently sloping sea floor on which the ice shelf came to rest. Application of heat conduction theory to a series of thermal profiles through the Ward Hunt Ice Shelf, and the Ward Hunt, Camp Creek and Cape Discovery ice rises shows that present heat flow in this area of northern Ellesmere Island is more than twice normal, and that the outer and intermediate parts of the Ward Hunt ice rise grounded 250–350 years ago, during a cycle of climatic deterioration. Development and localization of ice rises along northern Ellesmere Island are strongly influenced by topography, and all ice rises we have studied seem to have formed within the past 1 600 years, possibly with major growth in the interval from 1 000 to 150 years ago. |
format |
Article in Journal/Newspaper |
author |
Lyons, John B. Ragle, R. H. Tamburi, A. J. |
author_facet |
Lyons, John B. Ragle, R. H. Tamburi, A. J. |
author_sort |
Lyons, John B. |
title |
Growth and Grounding of the Ellesmere Island Ice Rises |
title_short |
Growth and Grounding of the Ellesmere Island Ice Rises |
title_full |
Growth and Grounding of the Ellesmere Island Ice Rises |
title_fullStr |
Growth and Grounding of the Ellesmere Island Ice Rises |
title_full_unstemmed |
Growth and Grounding of the Ellesmere Island Ice Rises |
title_sort |
growth and grounding of the ellesmere island ice rises |
publisher |
Cambridge University Press (CUP) |
publishDate |
1972 |
url |
http://dx.doi.org/10.1017/s0022143000022474 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000022474 |
long_lat |
ENVELOPE(-73.499,-73.499,83.122,83.122) |
geographic |
Ellesmere Island Ward Hunt Ice Shelf |
geographic_facet |
Ellesmere Island Ward Hunt Ice Shelf |
genre |
Ellesmere Island Ice Shelf Journal of Glaciology Ward Hunt Ice Shelf |
genre_facet |
Ellesmere Island Ice Shelf Journal of Glaciology Ward Hunt Ice Shelf |
op_source |
Journal of Glaciology volume 11, issue 61, page 43-52 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000022474 |
container_title |
Journal of Glaciology |
container_volume |
11 |
container_issue |
61 |
container_start_page |
43 |
op_container_end_page |
52 |
_version_ |
1792499553505640448 |