Extratropical Cyclones and Precipitation within the Canadian Archipelago during the Cold Season
ABSTRACT. Extratropical cyclones produce much of the precipitation over the Arctic, but the details of this cause-effect relationship are not well documented. In this study, we examined extratropical cyclones within the Canadian Archipelago, a subregion of the Arctic, over the period 1948 – 97. Usin...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.571.2951 2023-05-15T14:19:42+02:00 Extratropical Cyclones and Precipitation within the Canadian Archipelago during the Cold Season Matthew R. Intihar Ronald E. Stewart The Pennsylvania State University CiteSeerX Archives 2004 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.571.2951 http://pubs.aina.ucalgary.ca/arctic/Arctic58-2-162.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.571.2951 http://pubs.aina.ucalgary.ca/arctic/Arctic58-2-162.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://pubs.aina.ucalgary.ca/arctic/Arctic58-2-162.pdf Key words precipitation text 2004 ftciteseerx 2016-01-08T12:32:28Z ABSTRACT. Extratropical cyclones produce much of the precipitation over the Arctic, but the details of this cause-effect relationship are not well documented. In this study, we examined extratropical cyclones within the Canadian Archipelago, a subregion of the Arctic, over the period 1948 – 97. Using data from the Historical Canadian Climate Data (HCCD), the U.S. National Climate Center (UNCC), and the European Meteorological Bulletin (EMB), we assessed the relationship between extratropical cyclones and cold-season snowfall (October–April) for 10 events at each of 11 surface stations within the region. These events were relatively brief (72 h or less), but resulted in precipitation totals that exceeded the average monthly amount. At each station, within the 10 most extreme precipitation months of the 50-year study period, we often found a single event that accounted for approximately one-third of the total snowfall in that month. For sites located in the southeastern Archipelago, event-related storms typically approached from the southeast, whereas southwestern sites were affected by southwesterly storms, and northwestern sites, by northwesterly storms. In many cases, cyclone dissipation occurred within 24 h of the event’s conclusion. Precipitation analyses in this study were considerably affected by snowfall undercatchment; the magnitude of this effect needs further examination in future studies. However, the identification of extreme events and related storm tracks appears to be relatively unaffected by the lack of corrected precipitation data. Text Arctic Arctic Canadian Archipelago Unknown Arctic |
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Key words precipitation Matthew R. Intihar Ronald E. Stewart Extratropical Cyclones and Precipitation within the Canadian Archipelago during the Cold Season |
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Key words precipitation |
description |
ABSTRACT. Extratropical cyclones produce much of the precipitation over the Arctic, but the details of this cause-effect relationship are not well documented. In this study, we examined extratropical cyclones within the Canadian Archipelago, a subregion of the Arctic, over the period 1948 – 97. Using data from the Historical Canadian Climate Data (HCCD), the U.S. National Climate Center (UNCC), and the European Meteorological Bulletin (EMB), we assessed the relationship between extratropical cyclones and cold-season snowfall (October–April) for 10 events at each of 11 surface stations within the region. These events were relatively brief (72 h or less), but resulted in precipitation totals that exceeded the average monthly amount. At each station, within the 10 most extreme precipitation months of the 50-year study period, we often found a single event that accounted for approximately one-third of the total snowfall in that month. For sites located in the southeastern Archipelago, event-related storms typically approached from the southeast, whereas southwestern sites were affected by southwesterly storms, and northwestern sites, by northwesterly storms. In many cases, cyclone dissipation occurred within 24 h of the event’s conclusion. Precipitation analyses in this study were considerably affected by snowfall undercatchment; the magnitude of this effect needs further examination in future studies. However, the identification of extreme events and related storm tracks appears to be relatively unaffected by the lack of corrected precipitation data. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Matthew R. Intihar Ronald E. Stewart |
author_facet |
Matthew R. Intihar Ronald E. Stewart |
author_sort |
Matthew R. Intihar |
title |
Extratropical Cyclones and Precipitation within the Canadian Archipelago during the Cold Season |
title_short |
Extratropical Cyclones and Precipitation within the Canadian Archipelago during the Cold Season |
title_full |
Extratropical Cyclones and Precipitation within the Canadian Archipelago during the Cold Season |
title_fullStr |
Extratropical Cyclones and Precipitation within the Canadian Archipelago during the Cold Season |
title_full_unstemmed |
Extratropical Cyclones and Precipitation within the Canadian Archipelago during the Cold Season |
title_sort |
extratropical cyclones and precipitation within the canadian archipelago during the cold season |
publishDate |
2004 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.571.2951 http://pubs.aina.ucalgary.ca/arctic/Arctic58-2-162.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Canadian Archipelago |
genre_facet |
Arctic Arctic Canadian Archipelago |
op_source |
http://pubs.aina.ucalgary.ca/arctic/Arctic58-2-162.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.571.2951 http://pubs.aina.ucalgary.ca/arctic/Arctic58-2-162.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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