East-West Asymmetry in Coastal Temperatures of Hudson Bay as a Proxy for Sea Ice
Hudson Bay experiences a complete cryogenic cycle, which has been well documented since 1971. We developed a temperature proxy method to extend the sea ice record back to 1944, using mean temperatures for Churchill and Inukjuak and the difference between these means at two different seasonal periods...
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The Arctic Institute of North America
2015
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Online Access: | http://dx.doi.org/10.14430/arctic4522 http://arctic.journalhosting.ucalgary.ca/arctic/index.php/arctic/article/viewFile/4522/4673 |
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crarcticinstna:10.14430/arctic4522 2024-09-15T17:49:53+00:00 East-West Asymmetry in Coastal Temperatures of Hudson Bay as a Proxy for Sea Ice McGovern, Peter G. Gough, William A. 2015 http://dx.doi.org/10.14430/arctic4522 http://arctic.journalhosting.ucalgary.ca/arctic/index.php/arctic/article/viewFile/4522/4673 unknown The Arctic Institute of North America ARCTIC volume 68, issue 4, page 445 ISSN 1923-1245 0004-0843 journal-article 2015 crarcticinstna https://doi.org/10.14430/arctic4522 2024-06-25T04:00:29Z Hudson Bay experiences a complete cryogenic cycle, which has been well documented since 1971. We developed a temperature proxy method to extend the sea ice record back to 1944, using mean temperatures for Churchill and Inukjuak and the difference between these means at two different seasonal periods. This method proved to reproduce the 1971 to 2011 ice-free season length record with an error just over eight days (6%). This relationship was used to hindcast ice-free season length to 1944. This hindcast was subsequently appended to the existing 1971–2011 record to form a 68-year sea ice record. This extended record shows that the recent statistically significant increase in length of the ice-free season was not the result of a natural oscillation of less than 68 years and is consistent with a net warming due to increasing greenhouse gases. Article in Journal/Newspaper Arctic Hudson Bay Inukjuak Sea ice Arctic Institute of North America ARCTIC 68 4 445 |
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Open Polar |
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Arctic Institute of North America |
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crarcticinstna |
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description |
Hudson Bay experiences a complete cryogenic cycle, which has been well documented since 1971. We developed a temperature proxy method to extend the sea ice record back to 1944, using mean temperatures for Churchill and Inukjuak and the difference between these means at two different seasonal periods. This method proved to reproduce the 1971 to 2011 ice-free season length record with an error just over eight days (6%). This relationship was used to hindcast ice-free season length to 1944. This hindcast was subsequently appended to the existing 1971–2011 record to form a 68-year sea ice record. This extended record shows that the recent statistically significant increase in length of the ice-free season was not the result of a natural oscillation of less than 68 years and is consistent with a net warming due to increasing greenhouse gases. |
format |
Article in Journal/Newspaper |
author |
McGovern, Peter G. Gough, William A. |
spellingShingle |
McGovern, Peter G. Gough, William A. East-West Asymmetry in Coastal Temperatures of Hudson Bay as a Proxy for Sea Ice |
author_facet |
McGovern, Peter G. Gough, William A. |
author_sort |
McGovern, Peter G. |
title |
East-West Asymmetry in Coastal Temperatures of Hudson Bay as a Proxy for Sea Ice |
title_short |
East-West Asymmetry in Coastal Temperatures of Hudson Bay as a Proxy for Sea Ice |
title_full |
East-West Asymmetry in Coastal Temperatures of Hudson Bay as a Proxy for Sea Ice |
title_fullStr |
East-West Asymmetry in Coastal Temperatures of Hudson Bay as a Proxy for Sea Ice |
title_full_unstemmed |
East-West Asymmetry in Coastal Temperatures of Hudson Bay as a Proxy for Sea Ice |
title_sort |
east-west asymmetry in coastal temperatures of hudson bay as a proxy for sea ice |
publisher |
The Arctic Institute of North America |
publishDate |
2015 |
url |
http://dx.doi.org/10.14430/arctic4522 http://arctic.journalhosting.ucalgary.ca/arctic/index.php/arctic/article/viewFile/4522/4673 |
genre |
Arctic Hudson Bay Inukjuak Sea ice |
genre_facet |
Arctic Hudson Bay Inukjuak Sea ice |
op_source |
ARCTIC volume 68, issue 4, page 445 ISSN 1923-1245 0004-0843 |
op_doi |
https://doi.org/10.14430/arctic4522 |
container_title |
ARCTIC |
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68 |
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4 |
container_start_page |
445 |
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1810291662574845952 |