Variability and change in the Canadian cryosphere
Abstract During the International Polar Year (IPY), comprehensive observational research programs were undertaken to increase our understanding of the Canadian polar cryosphere response to a changing climate. Cryospheric components considered were snow, permafrost, sea ice, freshwater ice, glaciers...
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ftopenaccessrep:oai:zenodo.org:80505 2023-10-25T01:35:54+02:00 Variability and change in the Canadian cryosphere Ross Brown Alexandre Langlois Antoni G. Lewkowicz Laura C. Brown Jocelyne Bourgeois Monique Bernier Christopher G. Fletcher Yves Gauthier Chris Derksen Sharon L. Smith A. C. Tivy A. Walker Christopher R. Burn Alain Royer Luke Copland Derek Mueller Paul J. Kushner Stephen E. L. Howell Claude R. Duguay Martin Sharp 2012-05-09 https://www.openaccessrepository.it/record/80505 https://doi.org/10.1007/s10584-012-0470-0 eng eng url:https://www.openaccessrepository.it/communities/itmirror https://www.openaccessrepository.it/record/80505 doi:10.1007/s10584-012-0470-0 info:eu-repo/semantics/openAccess http://www.opendefinition.org/licenses/cc-by Energy Research Atmospheric Science Global and Planetary Change info:eu-repo/semantics/article publication-article 2012 ftopenaccessrep https://doi.org/10.1007/s10584-012-0470-0 2023-09-26T22:21:16Z Abstract During the International Polar Year (IPY), comprehensive observational research programs were undertaken to increase our understanding of the Canadian polar cryosphere response to a changing climate. Cryospheric components considered were snow, permafrost, sea ice, freshwater ice, glaciers and ice shelves. Enhancement of conventional observing systems and retrieval algorithms for satellite measurements facilitated development of a snapshot of current cryospheric conditions, providing a baseline against which future change can be assessed. Key findings include: 1. surface air temperatures across the Canadian Arctic exhibit a warming trend in all seasons over the past 40 years. A consistent pan-cryospheric response to these warming temperatures is evident through the analysis of multi-decadal datasets; 2. in recent years (including the IPY period) a higher rate of change was observed compared to previous decades including warming permafrost, reduction in snow cover extent and duration, reduction in summer sea ice extent, increased mass loss from glaciers, and thinning and break-up of the remaining Canadian ice shelves. These changes illustrate both a reduction in the spatial extent and mass of the cryosphere and an increase in the temporal persistence of melt related parameters. The observed changes in the cryosphere have important implications for human activity including the close ties of northerners to the land, access to northern regions for natural resource development, and the integrity of northern infrastructure. Article in Journal/Newspaper Arctic Ice Ice Shelves International Polar Year IPY permafrost Sea ice Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository Arctic Climatic Change 115 1 59 88 |
institution |
Open Polar |
collection |
Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository |
op_collection_id |
ftopenaccessrep |
language |
English |
topic |
Energy Research Atmospheric Science Global and Planetary Change |
spellingShingle |
Energy Research Atmospheric Science Global and Planetary Change Ross Brown Alexandre Langlois Antoni G. Lewkowicz Laura C. Brown Jocelyne Bourgeois Monique Bernier Christopher G. Fletcher Yves Gauthier Chris Derksen Sharon L. Smith A. C. Tivy A. Walker Christopher R. Burn Alain Royer Luke Copland Derek Mueller Paul J. Kushner Stephen E. L. Howell Claude R. Duguay Martin Sharp Variability and change in the Canadian cryosphere |
topic_facet |
Energy Research Atmospheric Science Global and Planetary Change |
description |
Abstract During the International Polar Year (IPY), comprehensive observational research programs were undertaken to increase our understanding of the Canadian polar cryosphere response to a changing climate. Cryospheric components considered were snow, permafrost, sea ice, freshwater ice, glaciers and ice shelves. Enhancement of conventional observing systems and retrieval algorithms for satellite measurements facilitated development of a snapshot of current cryospheric conditions, providing a baseline against which future change can be assessed. Key findings include: 1. surface air temperatures across the Canadian Arctic exhibit a warming trend in all seasons over the past 40 years. A consistent pan-cryospheric response to these warming temperatures is evident through the analysis of multi-decadal datasets; 2. in recent years (including the IPY period) a higher rate of change was observed compared to previous decades including warming permafrost, reduction in snow cover extent and duration, reduction in summer sea ice extent, increased mass loss from glaciers, and thinning and break-up of the remaining Canadian ice shelves. These changes illustrate both a reduction in the spatial extent and mass of the cryosphere and an increase in the temporal persistence of melt related parameters. The observed changes in the cryosphere have important implications for human activity including the close ties of northerners to the land, access to northern regions for natural resource development, and the integrity of northern infrastructure. |
format |
Article in Journal/Newspaper |
author |
Ross Brown Alexandre Langlois Antoni G. Lewkowicz Laura C. Brown Jocelyne Bourgeois Monique Bernier Christopher G. Fletcher Yves Gauthier Chris Derksen Sharon L. Smith A. C. Tivy A. Walker Christopher R. Burn Alain Royer Luke Copland Derek Mueller Paul J. Kushner Stephen E. L. Howell Claude R. Duguay Martin Sharp |
author_facet |
Ross Brown Alexandre Langlois Antoni G. Lewkowicz Laura C. Brown Jocelyne Bourgeois Monique Bernier Christopher G. Fletcher Yves Gauthier Chris Derksen Sharon L. Smith A. C. Tivy A. Walker Christopher R. Burn Alain Royer Luke Copland Derek Mueller Paul J. Kushner Stephen E. L. Howell Claude R. Duguay Martin Sharp |
author_sort |
Ross Brown |
title |
Variability and change in the Canadian cryosphere |
title_short |
Variability and change in the Canadian cryosphere |
title_full |
Variability and change in the Canadian cryosphere |
title_fullStr |
Variability and change in the Canadian cryosphere |
title_full_unstemmed |
Variability and change in the Canadian cryosphere |
title_sort |
variability and change in the canadian cryosphere |
publishDate |
2012 |
url |
https://www.openaccessrepository.it/record/80505 https://doi.org/10.1007/s10584-012-0470-0 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Ice Ice Shelves International Polar Year IPY permafrost Sea ice |
genre_facet |
Arctic Ice Ice Shelves International Polar Year IPY permafrost Sea ice |
op_relation |
url:https://www.openaccessrepository.it/communities/itmirror https://www.openaccessrepository.it/record/80505 doi:10.1007/s10584-012-0470-0 |
op_rights |
info:eu-repo/semantics/openAccess http://www.opendefinition.org/licenses/cc-by |
op_doi |
https://doi.org/10.1007/s10584-012-0470-0 |
container_title |
Climatic Change |
container_volume |
115 |
container_issue |
1 |
container_start_page |
59 |
op_container_end_page |
88 |
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1780730924369969152 |