Recent changes in seasonal variations of climate within the range of northern caribou populations
The Arctic is one region where it is expected that the impacts of a globally changing climate will be readily observed. We present results that indicate that climate derivatives of potential significance to caribou changed during the past 50 years. Many temperature derivatives reflect the increasing...
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2005
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ftunitroemsoe:oai:ojs.henry.ub.uit.no:article/1748 2023-05-15T14:51:34+02:00 Recent changes in seasonal variations of climate within the range of northern caribou populations Whitfield, Paul H. Russell, Don 2005-05-01 application/pdf https://septentrio.uit.no/index.php/rangifer/article/view/1748 https://doi.org/10.7557/2.25.4.1748 eng eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/rangifer/article/view/1748/1631 https://septentrio.uit.no/index.php/rangifer/article/view/1748 doi:10.7557/2.25.4.1748 Copyright (c) 2015 Paul H. Whitfield, Don Russell http://creativecommons.org/licenses/by/3.0/ CC-BY Rangifer; Vol 25 (2005): Special Issue No. 16; 11-18 1890-6729 caribou climate derivatives Porcupine caribou herd Rangifer tarandus info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2005 ftunitroemsoe https://doi.org/10.7557/2.25.4.1748 2021-08-16T15:07:20Z The Arctic is one region where it is expected that the impacts of a globally changing climate will be readily observed. We present results that indicate that climate derivatives of potential significance to caribou changed during the past 50 years. Many temperature derivatives reflect the increasing overall temperature in the Arctic such as decreases in the number of days with low temperatures, increases in the number of days with thaw, and days with extremely warm temperatures. Other derivatives reflect changes in the precipitation regime such as days with heavy precipitation and number of days when rain fell on snow. Our results indicate that specific caribou herds from across the Arctic were subjected to different variations of these derivatives in different seasons in the recent past. Examination of temperature and precipitation at finer time-steps than annual or monthly means, shows that climatic variations in the region are neither consistent through the seasons nor across space. Decadal changes in seasonal patterns of temperature and precipitation are shown for selected herds. A process for assessing caribou-focused climate derivatives is proposed. Article in Journal/Newspaper Arctic Rangifer Rangifer tarandus University of Tromsø: Septentrio Academic Publishing Arctic Rangifer 25 4 11 |
institution |
Open Polar |
collection |
University of Tromsø: Septentrio Academic Publishing |
op_collection_id |
ftunitroemsoe |
language |
English |
topic |
caribou climate derivatives Porcupine caribou herd Rangifer tarandus |
spellingShingle |
caribou climate derivatives Porcupine caribou herd Rangifer tarandus Whitfield, Paul H. Russell, Don Recent changes in seasonal variations of climate within the range of northern caribou populations |
topic_facet |
caribou climate derivatives Porcupine caribou herd Rangifer tarandus |
description |
The Arctic is one region where it is expected that the impacts of a globally changing climate will be readily observed. We present results that indicate that climate derivatives of potential significance to caribou changed during the past 50 years. Many temperature derivatives reflect the increasing overall temperature in the Arctic such as decreases in the number of days with low temperatures, increases in the number of days with thaw, and days with extremely warm temperatures. Other derivatives reflect changes in the precipitation regime such as days with heavy precipitation and number of days when rain fell on snow. Our results indicate that specific caribou herds from across the Arctic were subjected to different variations of these derivatives in different seasons in the recent past. Examination of temperature and precipitation at finer time-steps than annual or monthly means, shows that climatic variations in the region are neither consistent through the seasons nor across space. Decadal changes in seasonal patterns of temperature and precipitation are shown for selected herds. A process for assessing caribou-focused climate derivatives is proposed. |
format |
Article in Journal/Newspaper |
author |
Whitfield, Paul H. Russell, Don |
author_facet |
Whitfield, Paul H. Russell, Don |
author_sort |
Whitfield, Paul H. |
title |
Recent changes in seasonal variations of climate within the range of northern caribou populations |
title_short |
Recent changes in seasonal variations of climate within the range of northern caribou populations |
title_full |
Recent changes in seasonal variations of climate within the range of northern caribou populations |
title_fullStr |
Recent changes in seasonal variations of climate within the range of northern caribou populations |
title_full_unstemmed |
Recent changes in seasonal variations of climate within the range of northern caribou populations |
title_sort |
recent changes in seasonal variations of climate within the range of northern caribou populations |
publisher |
Septentrio Academic Publishing |
publishDate |
2005 |
url |
https://septentrio.uit.no/index.php/rangifer/article/view/1748 https://doi.org/10.7557/2.25.4.1748 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Rangifer Rangifer tarandus |
genre_facet |
Arctic Rangifer Rangifer tarandus |
op_source |
Rangifer; Vol 25 (2005): Special Issue No. 16; 11-18 1890-6729 |
op_relation |
https://septentrio.uit.no/index.php/rangifer/article/view/1748/1631 https://septentrio.uit.no/index.php/rangifer/article/view/1748 doi:10.7557/2.25.4.1748 |
op_rights |
Copyright (c) 2015 Paul H. Whitfield, Don Russell http://creativecommons.org/licenses/by/3.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.7557/2.25.4.1748 |
container_title |
Rangifer |
container_volume |
25 |
container_issue |
4 |
container_start_page |
11 |
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1766322695766540288 |