Arctic sea ice: satellite observations, global climate model performance, and future scenarios
Thesis (M.S.) University of Alaska Fairbanks, 2011 This thesis examined Arctic sea ice trends through observational records and model-derived scenarios. A regional analysis of Arctic sea ice observations 1980-2008 identified regional trends similar to the pan-Arctic. However, winter maximum (March)...
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ftunivalaska:oai:scholarworks.alaska.edu:11122/11337 2023-05-15T14:31:57+02:00 Arctic sea ice: satellite observations, global climate model performance, and future scenarios Rogers, Tracy S. Rupp, Scott 2011-08 http://hdl.handle.net/11122/11337 en_US eng http://hdl.handle.net/11122/11337 Resources Management sea ice Arctic Ocean Thesis ms 2011 ftunivalaska 2023-02-23T21:37:40Z Thesis (M.S.) University of Alaska Fairbanks, 2011 This thesis examined Arctic sea ice trends through observational records and model-derived scenarios. A regional analysis of Arctic sea ice observations 1980-2008 identified regional trends similar to the pan-Arctic. However, winter maximum (March) extent in the Atlantic quadrant declined faster. Through an analysis of Atlantic Ocean temperatures and Arctic winds, we concluded that melting sea ice extent may result in increased Atlantic Ocean temperatures, which feeds back to further reductions in Atlantic quadrant extent. Further, Arctic winds do not appear to drive Atlantic ice extent. We evaluated performance of 13 Global Climate Models, reviewing retrospective (1980-2008) sea ice simulations and used three metrics to compare with the observational record. We examined and ranked models at the pan-Arctic domain and regional quadrants, synthesizing model performance across several Arctic studies. The top performing models were able to better capture pan-Arctic trends and regional variability. Using the best performing models, we analyzed future sea ice projections across key access routes in the Arctic and found likely reduced ice coverage through 2100, allowing increasingly longer marine operations. This unique assessment found the Northwest and Northeast Passages to hold potential for future marine access to the Arctic, including shipping and resource development opportunities. University of Alaska, Fairbanks’ International Arctic Research Center, National Science Foundation’s Office of Polar Programs, Scenarios Network for Alaska and Arctic Planning 1. Regional variations in Arctic sea ice extent and the role of winds and ocean temperatures -- 2. An evaluation of global climate models: Arctic sea ice extent -- 3. Future Arctic sea ice dynamics and implications for marine access -- Appendix 3.1 -- Conclusions -- References. Thesis Arctic Arctic Ocean International Arctic Research Center Sea ice Alaska University of Alaska: ScholarWorks@UA Arctic Arctic Ocean Fairbanks |
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Open Polar |
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University of Alaska: ScholarWorks@UA |
op_collection_id |
ftunivalaska |
language |
English |
topic |
sea ice Arctic Ocean |
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sea ice Arctic Ocean Rogers, Tracy S. Arctic sea ice: satellite observations, global climate model performance, and future scenarios |
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sea ice Arctic Ocean |
description |
Thesis (M.S.) University of Alaska Fairbanks, 2011 This thesis examined Arctic sea ice trends through observational records and model-derived scenarios. A regional analysis of Arctic sea ice observations 1980-2008 identified regional trends similar to the pan-Arctic. However, winter maximum (March) extent in the Atlantic quadrant declined faster. Through an analysis of Atlantic Ocean temperatures and Arctic winds, we concluded that melting sea ice extent may result in increased Atlantic Ocean temperatures, which feeds back to further reductions in Atlantic quadrant extent. Further, Arctic winds do not appear to drive Atlantic ice extent. We evaluated performance of 13 Global Climate Models, reviewing retrospective (1980-2008) sea ice simulations and used three metrics to compare with the observational record. We examined and ranked models at the pan-Arctic domain and regional quadrants, synthesizing model performance across several Arctic studies. The top performing models were able to better capture pan-Arctic trends and regional variability. Using the best performing models, we analyzed future sea ice projections across key access routes in the Arctic and found likely reduced ice coverage through 2100, allowing increasingly longer marine operations. This unique assessment found the Northwest and Northeast Passages to hold potential for future marine access to the Arctic, including shipping and resource development opportunities. University of Alaska, Fairbanks’ International Arctic Research Center, National Science Foundation’s Office of Polar Programs, Scenarios Network for Alaska and Arctic Planning 1. Regional variations in Arctic sea ice extent and the role of winds and ocean temperatures -- 2. An evaluation of global climate models: Arctic sea ice extent -- 3. Future Arctic sea ice dynamics and implications for marine access -- Appendix 3.1 -- Conclusions -- References. |
author2 |
Rupp, Scott |
format |
Thesis |
author |
Rogers, Tracy S. |
author_facet |
Rogers, Tracy S. |
author_sort |
Rogers, Tracy S. |
title |
Arctic sea ice: satellite observations, global climate model performance, and future scenarios |
title_short |
Arctic sea ice: satellite observations, global climate model performance, and future scenarios |
title_full |
Arctic sea ice: satellite observations, global climate model performance, and future scenarios |
title_fullStr |
Arctic sea ice: satellite observations, global climate model performance, and future scenarios |
title_full_unstemmed |
Arctic sea ice: satellite observations, global climate model performance, and future scenarios |
title_sort |
arctic sea ice: satellite observations, global climate model performance, and future scenarios |
publishDate |
2011 |
url |
http://hdl.handle.net/11122/11337 |
geographic |
Arctic Arctic Ocean Fairbanks |
geographic_facet |
Arctic Arctic Ocean Fairbanks |
genre |
Arctic Arctic Ocean International Arctic Research Center Sea ice Alaska |
genre_facet |
Arctic Arctic Ocean International Arctic Research Center Sea ice Alaska |
op_relation |
http://hdl.handle.net/11122/11337 Resources Management |
_version_ |
1766305447620378624 |