The influence of low‐level thermal inversions on estimated melt‐season characteristics in the central Canadian Arctic
Abstract Daily vertical temperature gradients were examined in order to infer melt‐event characteristics at an elevation relevant to basin‐scale snow and plateau ice‐melt studies in the Canadian Arctic. Surface and upper‐air temperature data from Resolute, Cornwallis Island, was used to estimate ver...
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crwiley:10.1002/joc.1722 2024-06-23T07:49:45+00:00 The influence of low‐level thermal inversions on estimated melt‐season characteristics in the central Canadian Arctic Chutko, Krystopher J. Lamoureux, Scott F. 2008 http://dx.doi.org/10.1002/joc.1722 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.1722 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.1722 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor International Journal of Climatology volume 29, issue 2, page 259-268 ISSN 0899-8418 1097-0088 journal-article 2008 crwiley https://doi.org/10.1002/joc.1722 2024-06-11T04:51:52Z Abstract Daily vertical temperature gradients were examined in order to infer melt‐event characteristics at an elevation relevant to basin‐scale snow and plateau ice‐melt studies in the Canadian Arctic. Surface and upper‐air temperature data from Resolute, Cornwallis Island, was used to estimate vertical lapse rates up to 300 m asl, and to identify the presence of inversions at that altitude. Lapse rates vary throughout the melt season and are substantially less than typically published generalized values. Thermal inversions are more frequent during the melt season than in the periods immediately before and after, suggesting a strong control on intraseasonal temperature patterns. In July, the period of maximum temperature in the Arctic, inversion frequency is highest and closely related to calculated melting degree‐days. Results show that increased summer mean temperature resulted in a substantial lengthening of estimated melt events, as opposed to increased event intensity. Increased inversion frequency leading to shallower vertical lapse rates since the late 1980s is speculated to be the result of synoptic‐scale climate patterns, and is potentially an important meteorological mechanism for enhanced glacial melt since the late 1980s. Copyright © 2008 Royal Meteorological Society Article in Journal/Newspaper Arctic Cornwallis Island Wiley Online Library Arctic Cornwallis ENVELOPE(-54.464,-54.464,-61.072,-61.072) Cornwallis Island ENVELOPE(-95.001,-95.001,75.135,75.135) International Journal of Climatology 29 2 259 268 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Daily vertical temperature gradients were examined in order to infer melt‐event characteristics at an elevation relevant to basin‐scale snow and plateau ice‐melt studies in the Canadian Arctic. Surface and upper‐air temperature data from Resolute, Cornwallis Island, was used to estimate vertical lapse rates up to 300 m asl, and to identify the presence of inversions at that altitude. Lapse rates vary throughout the melt season and are substantially less than typically published generalized values. Thermal inversions are more frequent during the melt season than in the periods immediately before and after, suggesting a strong control on intraseasonal temperature patterns. In July, the period of maximum temperature in the Arctic, inversion frequency is highest and closely related to calculated melting degree‐days. Results show that increased summer mean temperature resulted in a substantial lengthening of estimated melt events, as opposed to increased event intensity. Increased inversion frequency leading to shallower vertical lapse rates since the late 1980s is speculated to be the result of synoptic‐scale climate patterns, and is potentially an important meteorological mechanism for enhanced glacial melt since the late 1980s. Copyright © 2008 Royal Meteorological Society |
format |
Article in Journal/Newspaper |
author |
Chutko, Krystopher J. Lamoureux, Scott F. |
spellingShingle |
Chutko, Krystopher J. Lamoureux, Scott F. The influence of low‐level thermal inversions on estimated melt‐season characteristics in the central Canadian Arctic |
author_facet |
Chutko, Krystopher J. Lamoureux, Scott F. |
author_sort |
Chutko, Krystopher J. |
title |
The influence of low‐level thermal inversions on estimated melt‐season characteristics in the central Canadian Arctic |
title_short |
The influence of low‐level thermal inversions on estimated melt‐season characteristics in the central Canadian Arctic |
title_full |
The influence of low‐level thermal inversions on estimated melt‐season characteristics in the central Canadian Arctic |
title_fullStr |
The influence of low‐level thermal inversions on estimated melt‐season characteristics in the central Canadian Arctic |
title_full_unstemmed |
The influence of low‐level thermal inversions on estimated melt‐season characteristics in the central Canadian Arctic |
title_sort |
influence of low‐level thermal inversions on estimated melt‐season characteristics in the central canadian arctic |
publisher |
Wiley |
publishDate |
2008 |
url |
http://dx.doi.org/10.1002/joc.1722 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.1722 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.1722 |
long_lat |
ENVELOPE(-54.464,-54.464,-61.072,-61.072) ENVELOPE(-95.001,-95.001,75.135,75.135) |
geographic |
Arctic Cornwallis Cornwallis Island |
geographic_facet |
Arctic Cornwallis Cornwallis Island |
genre |
Arctic Cornwallis Island |
genre_facet |
Arctic Cornwallis Island |
op_source |
International Journal of Climatology volume 29, issue 2, page 259-268 ISSN 0899-8418 1097-0088 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/joc.1722 |
container_title |
International Journal of Climatology |
container_volume |
29 |
container_issue |
2 |
container_start_page |
259 |
op_container_end_page |
268 |
_version_ |
1802640433537351680 |