The North American summer Arctic front during 1948–2007
Abstract Boundaries between air masses, frontal zones, are associated with vegetation boundaries. Using gridded climate reanalysis data, we analyse the air masses and frontal zones of North America in relation to the atmospheric circulation and vegetation productivity. The position of the July Arcti...
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crwiley:10.1002/joc.1940 2024-06-02T08:00:21+00:00 The North American summer Arctic front during 1948–2007 Ladd, Matthew J. Gajewski, Konrad Natural Sciences and Engineering Research Council Canadian Foundation for Climate and Atmospheric Sciences 2009 http://dx.doi.org/10.1002/joc.1940 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.1940 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.1940 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor International Journal of Climatology volume 30, issue 6, page 874-883 ISSN 0899-8418 1097-0088 journal-article 2009 crwiley https://doi.org/10.1002/joc.1940 2024-05-03T11:42:01Z Abstract Boundaries between air masses, frontal zones, are associated with vegetation boundaries. Using gridded climate reanalysis data, we analyse the air masses and frontal zones of North America in relation to the atmospheric circulation and vegetation productivity. The position of the July Arctic front varies significantly through the period 1948–2007, with a mean position similar to that found by Bryson (1966). The variability of the frontal position can be associated with changes in the general circulation; when the Arctic Oscillation (AO) and Southern Oscillation Index (SOI) are positive (negative), the position of the July Arctic front is further north (south). There is also more spatial variability in the July Arctic frontal position in eastern versus western North America. The location of the frontal zone affects the vegetation through impacts on vegetative production; when the July Arctic front is north (south) of the mean position, the boreal forest and tundra vegetation is more (less) productive. Contrary to other studies that have identified changes in air mass frequency distributions and properties in several regions in response to global warming, we could not find clear evidence of significant changes in the position of the Arctic front in recent years. Copyright © 2009 Royal Meteorological Society Article in Journal/Newspaper Arctic Global warming Tundra Wiley Online Library Arctic Soi ENVELOPE(30.704,30.704,66.481,66.481) International Journal of Climatology 30 6 874 883 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Boundaries between air masses, frontal zones, are associated with vegetation boundaries. Using gridded climate reanalysis data, we analyse the air masses and frontal zones of North America in relation to the atmospheric circulation and vegetation productivity. The position of the July Arctic front varies significantly through the period 1948–2007, with a mean position similar to that found by Bryson (1966). The variability of the frontal position can be associated with changes in the general circulation; when the Arctic Oscillation (AO) and Southern Oscillation Index (SOI) are positive (negative), the position of the July Arctic front is further north (south). There is also more spatial variability in the July Arctic frontal position in eastern versus western North America. The location of the frontal zone affects the vegetation through impacts on vegetative production; when the July Arctic front is north (south) of the mean position, the boreal forest and tundra vegetation is more (less) productive. Contrary to other studies that have identified changes in air mass frequency distributions and properties in several regions in response to global warming, we could not find clear evidence of significant changes in the position of the Arctic front in recent years. Copyright © 2009 Royal Meteorological Society |
author2 |
Natural Sciences and Engineering Research Council Canadian Foundation for Climate and Atmospheric Sciences |
format |
Article in Journal/Newspaper |
author |
Ladd, Matthew J. Gajewski, Konrad |
spellingShingle |
Ladd, Matthew J. Gajewski, Konrad The North American summer Arctic front during 1948–2007 |
author_facet |
Ladd, Matthew J. Gajewski, Konrad |
author_sort |
Ladd, Matthew J. |
title |
The North American summer Arctic front during 1948–2007 |
title_short |
The North American summer Arctic front during 1948–2007 |
title_full |
The North American summer Arctic front during 1948–2007 |
title_fullStr |
The North American summer Arctic front during 1948–2007 |
title_full_unstemmed |
The North American summer Arctic front during 1948–2007 |
title_sort |
north american summer arctic front during 1948–2007 |
publisher |
Wiley |
publishDate |
2009 |
url |
http://dx.doi.org/10.1002/joc.1940 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.1940 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.1940 |
long_lat |
ENVELOPE(30.704,30.704,66.481,66.481) |
geographic |
Arctic Soi |
geographic_facet |
Arctic Soi |
genre |
Arctic Global warming Tundra |
genre_facet |
Arctic Global warming Tundra |
op_source |
International Journal of Climatology volume 30, issue 6, page 874-883 ISSN 0899-8418 1097-0088 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/joc.1940 |
container_title |
International Journal of Climatology |
container_volume |
30 |
container_issue |
6 |
container_start_page |
874 |
op_container_end_page |
883 |
_version_ |
1800744335406268416 |