Investigating the link between Arctic sea ice, North Pacific geopotential height anomalies, and precipitation across the United States
New evidence is presented to show that decreasing sea ice in the Arctic is causing an increased amplification of the jet stream off the west coast of the United States. We find a statistically significant relationship between sea ice north of Alaska and geopotential height anomalies during the follo...
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ftunivillidea:oai:www.ideals.illinois.edu:2142/89264 2023-05-15T14:47:51+02:00 Investigating the link between Arctic sea ice, North Pacific geopotential height anomalies, and precipitation across the United States Zobel, Zachary T Wuebbles, Donald 2015-12 application/pdf http://hdl.handle.net/2142/89264 en eng http://hdl.handle.net/2142/89264 Copyright 2015 Zachary Zobel jet stream amplification Thesis text 2015 ftunivillidea 2018-05-12T22:28:06Z New evidence is presented to show that decreasing sea ice in the Arctic is causing an increased amplification of the jet stream off the west coast of the United States. We find a statistically significant relationship between sea ice north of Alaska and geopotential height anomalies during the following winter and spring months. We also show that these semi-persistent height anomalies are increasing in frequency in these locations independent of long term ocean cycles, such as ENSO and PDO. These height anomalies cause more persistent precipitation patterns to certain regions of the United States and we discuss these teleconnections as well as their impacts. These results suggest that as the Arctic, specifically the region north of Alaska, continues to decrease in sea ice coverage a more persistent ridge will form in areas adjacent to this location and affect storm track to the continental United States. Thesis Arctic Sea ice Alaska University of Illinois at Urbana-Champaign: IDEALS (Illinois Digital Environment for Access to Learning and Scholarship) Arctic Pacific |
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Open Polar |
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University of Illinois at Urbana-Champaign: IDEALS (Illinois Digital Environment for Access to Learning and Scholarship) |
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ftunivillidea |
language |
English |
topic |
jet stream amplification |
spellingShingle |
jet stream amplification Zobel, Zachary T Investigating the link between Arctic sea ice, North Pacific geopotential height anomalies, and precipitation across the United States |
topic_facet |
jet stream amplification |
description |
New evidence is presented to show that decreasing sea ice in the Arctic is causing an increased amplification of the jet stream off the west coast of the United States. We find a statistically significant relationship between sea ice north of Alaska and geopotential height anomalies during the following winter and spring months. We also show that these semi-persistent height anomalies are increasing in frequency in these locations independent of long term ocean cycles, such as ENSO and PDO. These height anomalies cause more persistent precipitation patterns to certain regions of the United States and we discuss these teleconnections as well as their impacts. These results suggest that as the Arctic, specifically the region north of Alaska, continues to decrease in sea ice coverage a more persistent ridge will form in areas adjacent to this location and affect storm track to the continental United States. |
author2 |
Wuebbles, Donald |
format |
Thesis |
author |
Zobel, Zachary T |
author_facet |
Zobel, Zachary T |
author_sort |
Zobel, Zachary T |
title |
Investigating the link between Arctic sea ice, North Pacific geopotential height anomalies, and precipitation across the United States |
title_short |
Investigating the link between Arctic sea ice, North Pacific geopotential height anomalies, and precipitation across the United States |
title_full |
Investigating the link between Arctic sea ice, North Pacific geopotential height anomalies, and precipitation across the United States |
title_fullStr |
Investigating the link between Arctic sea ice, North Pacific geopotential height anomalies, and precipitation across the United States |
title_full_unstemmed |
Investigating the link between Arctic sea ice, North Pacific geopotential height anomalies, and precipitation across the United States |
title_sort |
investigating the link between arctic sea ice, north pacific geopotential height anomalies, and precipitation across the united states |
publishDate |
2015 |
url |
http://hdl.handle.net/2142/89264 |
geographic |
Arctic Pacific |
geographic_facet |
Arctic Pacific |
genre |
Arctic Sea ice Alaska |
genre_facet |
Arctic Sea ice Alaska |
op_relation |
http://hdl.handle.net/2142/89264 |
op_rights |
Copyright 2015 Zachary Zobel |
_version_ |
1766318964925792256 |