Using RADARSAT to Identify Sea Ice Ridges and their Implications for Shipping in Canada’s Hudson Strait
Ridges in sea ice and the convergent forces that form them are a serious hazard to ships traveling in the Arctic, but few studies have examined ridge distribution at a basin level in the Canadian Arctic. The Hudson Strait, which connects Hudson Bay and the North Atlantic, is a site of ongoing winter...
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2016
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crarcticinstna:10.14430/arctic4604 2024-06-16T07:36:03+00:00 Using RADARSAT to Identify Sea Ice Ridges and their Implications for Shipping in Canada’s Hudson Strait Mussells, Olivia Dawson, Jackie Howell, Stephen 2016 http://dx.doi.org/10.14430/arctic4604 http://arctic.journalhosting.ucalgary.ca/arctic/index.php/arctic/article/viewFile/4604/4797 unknown The Arctic Institute of North America http://creativecommons.org/licenses/by/4.0/ ARCTIC volume 69, issue 4, page 421 ISSN 1923-1245 0004-0843 journal-article 2016 crarcticinstna https://doi.org/10.14430/arctic4604 2024-05-21T12:53:25Z Ridges in sea ice and the convergent forces that form them are a serious hazard to ships traveling in the Arctic, but few studies have examined ridge distribution at a basin level in the Canadian Arctic. The Hudson Strait, which connects Hudson Bay and the North Atlantic, is a site of ongoing winter shipping where vessels frequently encounter pressured ice conditions and ridging. Here, RADARSAT-1 and RADARSAT-2 ScanSAR Wide images were used to identify ridges manually in a winter shipping corridor in the Hudson Strait for the period 1997 to 2012. Ridge count peaked in the month of March. No significant linear trend in the number of ridges was identified on either a monthly or annual scale, which is the result of great variability from year to year. However, spatial patterns of ridging distribution were evident: ridging occurred primarily in the eastern and western sectors of the study area, both in the region between Charles Island and the Quebec coastline and at the eastern entrance to the Hudson Strait. Seasonal sea level pressure (SLP) patterns from years of high and low ridge density were compared, but consistent correlations between SLP and ridge density were not found. The impacts of one-time storm events on ridge densities were also investigated. More analysis is needed to understand the factors influencing ridge density in the Hudson Strait. Article in Journal/Newspaper Arctic Arctic Hudson Bay Hudson Strait North Atlantic Sea ice Arctic Institute of North America Arctic Hudson Bay Hudson Hudson Strait ENVELOPE(-70.000,-70.000,62.000,62.000) Eastern Entrance ENVELOPE(-132.987,-132.987,69.458,69.458) ARCTIC 69 4 421 |
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Arctic Institute of North America |
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Ridges in sea ice and the convergent forces that form them are a serious hazard to ships traveling in the Arctic, but few studies have examined ridge distribution at a basin level in the Canadian Arctic. The Hudson Strait, which connects Hudson Bay and the North Atlantic, is a site of ongoing winter shipping where vessels frequently encounter pressured ice conditions and ridging. Here, RADARSAT-1 and RADARSAT-2 ScanSAR Wide images were used to identify ridges manually in a winter shipping corridor in the Hudson Strait for the period 1997 to 2012. Ridge count peaked in the month of March. No significant linear trend in the number of ridges was identified on either a monthly or annual scale, which is the result of great variability from year to year. However, spatial patterns of ridging distribution were evident: ridging occurred primarily in the eastern and western sectors of the study area, both in the region between Charles Island and the Quebec coastline and at the eastern entrance to the Hudson Strait. Seasonal sea level pressure (SLP) patterns from years of high and low ridge density were compared, but consistent correlations between SLP and ridge density were not found. The impacts of one-time storm events on ridge densities were also investigated. More analysis is needed to understand the factors influencing ridge density in the Hudson Strait. |
format |
Article in Journal/Newspaper |
author |
Mussells, Olivia Dawson, Jackie Howell, Stephen |
spellingShingle |
Mussells, Olivia Dawson, Jackie Howell, Stephen Using RADARSAT to Identify Sea Ice Ridges and their Implications for Shipping in Canada’s Hudson Strait |
author_facet |
Mussells, Olivia Dawson, Jackie Howell, Stephen |
author_sort |
Mussells, Olivia |
title |
Using RADARSAT to Identify Sea Ice Ridges and their Implications for Shipping in Canada’s Hudson Strait |
title_short |
Using RADARSAT to Identify Sea Ice Ridges and their Implications for Shipping in Canada’s Hudson Strait |
title_full |
Using RADARSAT to Identify Sea Ice Ridges and their Implications for Shipping in Canada’s Hudson Strait |
title_fullStr |
Using RADARSAT to Identify Sea Ice Ridges and their Implications for Shipping in Canada’s Hudson Strait |
title_full_unstemmed |
Using RADARSAT to Identify Sea Ice Ridges and their Implications for Shipping in Canada’s Hudson Strait |
title_sort |
using radarsat to identify sea ice ridges and their implications for shipping in canada’s hudson strait |
publisher |
The Arctic Institute of North America |
publishDate |
2016 |
url |
http://dx.doi.org/10.14430/arctic4604 http://arctic.journalhosting.ucalgary.ca/arctic/index.php/arctic/article/viewFile/4604/4797 |
long_lat |
ENVELOPE(-70.000,-70.000,62.000,62.000) ENVELOPE(-132.987,-132.987,69.458,69.458) |
geographic |
Arctic Hudson Bay Hudson Hudson Strait Eastern Entrance |
geographic_facet |
Arctic Hudson Bay Hudson Hudson Strait Eastern Entrance |
genre |
Arctic Arctic Hudson Bay Hudson Strait North Atlantic Sea ice |
genre_facet |
Arctic Arctic Hudson Bay Hudson Strait North Atlantic Sea ice |
op_source |
ARCTIC volume 69, issue 4, page 421 ISSN 1923-1245 0004-0843 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.14430/arctic4604 |
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ARCTIC |
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69 |
container_issue |
4 |
container_start_page |
421 |
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1802012797249257472 |