Break-up of the largest Arctic ice shelf and associated loss of an epishelf lake
[1] Field observations and RADARSAT imagery of the Ward Hunt Ice Shelf (lat. 83°N, long. 74°W), Nunavut, Canada, show that it broke in two over the period 2000 to 2002, with additional fissuring and further ice island calving. The fracturing caused the drainage of an ice-dammed epishelf lake (Disrae...
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ftcarletonuniv:oai:curve.carleton.ca:25021 2023-05-15T13:42:58+02:00 Break-up of the largest Arctic ice shelf and associated loss of an epishelf lake Mueller, D.R. Jeffries, M.O. Vincent, W.F. 2003-10-18 https://curve.carleton.ca/1d5bb9bd-e80a-48fe-9f99-f638326c2302 https://doi.org/10.1029/2003GL017931 http://onlinelibrary.wiley.com/doi/10.1029/2003GL017931/abstract unknown https://curve.carleton.ca/1d5bb9bd-e80a-48fe-9f99-f638326c2302 http://dx.doi.org/10.1029/2003GL017931 http://onlinelibrary.wiley.com/doi/10.1029/2003GL017931/abstract Journal Article 2003 ftcarletonuniv https://doi.org/10.1029/2003GL017931 2022-01-23T08:18:37Z [1] Field observations and RADARSAT imagery of the Ward Hunt Ice Shelf (lat. 83°N, long. 74°W), Nunavut, Canada, show that it broke in two over the period 2000 to 2002, with additional fissuring and further ice island calving. The fracturing caused the drainage of an ice-dammed epishelf lake (Disraeli Fiord), a rare ecosystem type. Reductions in the freshwater volume of Disraeli Fiord occurred from 1967 to the present and accompanied a significant rise in mean annual air temperature over the same period in this far northern region. The recent collapse of ice shelves in West Antarctica has been interpreted as evidence of accelerated climate change in that region. Similarly, the inferred thinning and observed fragmentation of the ice shelf, plus the drainage of the epishelf lake, are additional evidence for climate change in the High Arctic. Article in Journal/Newspaper Antarc* Antarctica Arctic Climate change Ice Shelf Ice Shelves Nunavut Ward Hunt Ice Shelf West Antarctica CURVE - Carleton University Research Virtual Environment Arctic Nunavut West Antarctica Canada Ward Hunt Ice Shelf ENVELOPE(-73.499,-73.499,83.122,83.122) Disraeli Fiord ENVELOPE(-73.344,-73.344,82.819,82.819) Geophysical Research Letters 30 20 |
institution |
Open Polar |
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CURVE - Carleton University Research Virtual Environment |
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ftcarletonuniv |
language |
unknown |
description |
[1] Field observations and RADARSAT imagery of the Ward Hunt Ice Shelf (lat. 83°N, long. 74°W), Nunavut, Canada, show that it broke in two over the period 2000 to 2002, with additional fissuring and further ice island calving. The fracturing caused the drainage of an ice-dammed epishelf lake (Disraeli Fiord), a rare ecosystem type. Reductions in the freshwater volume of Disraeli Fiord occurred from 1967 to the present and accompanied a significant rise in mean annual air temperature over the same period in this far northern region. The recent collapse of ice shelves in West Antarctica has been interpreted as evidence of accelerated climate change in that region. Similarly, the inferred thinning and observed fragmentation of the ice shelf, plus the drainage of the epishelf lake, are additional evidence for climate change in the High Arctic. |
format |
Article in Journal/Newspaper |
author |
Mueller, D.R. Jeffries, M.O. Vincent, W.F. |
spellingShingle |
Mueller, D.R. Jeffries, M.O. Vincent, W.F. Break-up of the largest Arctic ice shelf and associated loss of an epishelf lake |
author_facet |
Mueller, D.R. Jeffries, M.O. Vincent, W.F. |
author_sort |
Mueller, D.R. |
title |
Break-up of the largest Arctic ice shelf and associated loss of an epishelf lake |
title_short |
Break-up of the largest Arctic ice shelf and associated loss of an epishelf lake |
title_full |
Break-up of the largest Arctic ice shelf and associated loss of an epishelf lake |
title_fullStr |
Break-up of the largest Arctic ice shelf and associated loss of an epishelf lake |
title_full_unstemmed |
Break-up of the largest Arctic ice shelf and associated loss of an epishelf lake |
title_sort |
break-up of the largest arctic ice shelf and associated loss of an epishelf lake |
publishDate |
2003 |
url |
https://curve.carleton.ca/1d5bb9bd-e80a-48fe-9f99-f638326c2302 https://doi.org/10.1029/2003GL017931 http://onlinelibrary.wiley.com/doi/10.1029/2003GL017931/abstract |
long_lat |
ENVELOPE(-73.499,-73.499,83.122,83.122) ENVELOPE(-73.344,-73.344,82.819,82.819) |
geographic |
Arctic Nunavut West Antarctica Canada Ward Hunt Ice Shelf Disraeli Fiord |
geographic_facet |
Arctic Nunavut West Antarctica Canada Ward Hunt Ice Shelf Disraeli Fiord |
genre |
Antarc* Antarctica Arctic Climate change Ice Shelf Ice Shelves Nunavut Ward Hunt Ice Shelf West Antarctica |
genre_facet |
Antarc* Antarctica Arctic Climate change Ice Shelf Ice Shelves Nunavut Ward Hunt Ice Shelf West Antarctica |
op_relation |
https://curve.carleton.ca/1d5bb9bd-e80a-48fe-9f99-f638326c2302 http://dx.doi.org/10.1029/2003GL017931 http://onlinelibrary.wiley.com/doi/10.1029/2003GL017931/abstract |
op_doi |
https://doi.org/10.1029/2003GL017931 |
container_title |
Geophysical Research Letters |
container_volume |
30 |
container_issue |
20 |
_version_ |
1766181129630515200 |