Fast atmospheric response to a sudden thinning of Arctic sea ice
Due to record-breaking Arctic sea ice extent minima in the last decade, a lot of attention has been paid to the atmospheric large-scale circulation response to decreased Arctic sea ice area. However, also a substantial thinning of Arctic sea ice has been observed which modifies the heat flux through...
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ftawi:oai:epic.awi.de:37902 2024-09-15T17:51:17+00:00 Fast atmospheric response to a sudden thinning of Arctic sea ice Semmler, Tido Jung, Thomas Serrar, Soumia 2015-03-27 application/pdf https://epic.awi.de/id/eprint/37902/ https://epic.awi.de/id/eprint/37902/1/Fastresponse.pdf https://hdl.handle.net/10013/epic.45484 https://hdl.handle.net/10013/epic.45484.d001 unknown https://epic.awi.de/id/eprint/37902/1/Fastresponse.pdf https://hdl.handle.net/10013/epic.45484.d001 Semmler, T. orcid:0000-0002-2254-4901 , Jung, T. orcid:0000-0002-2651-1293 and Serrar, S. (2015) Fast atmospheric response to a sudden thinning of Arctic sea ice , High Latitude Dynamics Workshop, Rosendal, Norway, 23 March 2015 - 27 March 2015 . hdl:10013/epic.45484 EPIC3High Latitude Dynamics Workshop, Rosendal, Norway, 2015-03-23-2015-03-27 Conference notRev 2015 ftawi 2024-06-24T04:12:21Z Due to record-breaking Arctic sea ice extent minima in the last decade, a lot of attention has been paid to the atmospheric large-scale circulation response to decreased Arctic sea ice area. However, also a substantial thinning of Arctic sea ice has been observed which modifies the heat flux through the ice. We focus on the fast atmospheric response to a sudden thinning of Arctic sea ice to disentangle the role of various different processes. Overall the response of the atmospheric large-scale circulation is relatively small with up to 2 hPa in the Arctic mean sea level pressure and even smaller changes in the mid-latitudes during the first 15 days; the quasi-equilibrium response reached in the second and third month of the integration is about twice as large. During the first few days the response tends to be baroclinic in the whole Arctic. Already after a few days an anti-cyclonic equivalent-barotropic response develops over north-western Siberia and north-eastern Europe. The structure resembles very much that of the atmospheric equilibrium response indicating that fast tropospheric processes such as fewer quasi-barotropic cyclones entering this continental area are key opposed to slower processes such as those involving, for example, stratosphere-troposphere interaction. Conference Object Arctic Sea ice Siberia Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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description |
Due to record-breaking Arctic sea ice extent minima in the last decade, a lot of attention has been paid to the atmospheric large-scale circulation response to decreased Arctic sea ice area. However, also a substantial thinning of Arctic sea ice has been observed which modifies the heat flux through the ice. We focus on the fast atmospheric response to a sudden thinning of Arctic sea ice to disentangle the role of various different processes. Overall the response of the atmospheric large-scale circulation is relatively small with up to 2 hPa in the Arctic mean sea level pressure and even smaller changes in the mid-latitudes during the first 15 days; the quasi-equilibrium response reached in the second and third month of the integration is about twice as large. During the first few days the response tends to be baroclinic in the whole Arctic. Already after a few days an anti-cyclonic equivalent-barotropic response develops over north-western Siberia and north-eastern Europe. The structure resembles very much that of the atmospheric equilibrium response indicating that fast tropospheric processes such as fewer quasi-barotropic cyclones entering this continental area are key opposed to slower processes such as those involving, for example, stratosphere-troposphere interaction. |
format |
Conference Object |
author |
Semmler, Tido Jung, Thomas Serrar, Soumia |
spellingShingle |
Semmler, Tido Jung, Thomas Serrar, Soumia Fast atmospheric response to a sudden thinning of Arctic sea ice |
author_facet |
Semmler, Tido Jung, Thomas Serrar, Soumia |
author_sort |
Semmler, Tido |
title |
Fast atmospheric response to a sudden thinning of Arctic sea ice |
title_short |
Fast atmospheric response to a sudden thinning of Arctic sea ice |
title_full |
Fast atmospheric response to a sudden thinning of Arctic sea ice |
title_fullStr |
Fast atmospheric response to a sudden thinning of Arctic sea ice |
title_full_unstemmed |
Fast atmospheric response to a sudden thinning of Arctic sea ice |
title_sort |
fast atmospheric response to a sudden thinning of arctic sea ice |
publishDate |
2015 |
url |
https://epic.awi.de/id/eprint/37902/ https://epic.awi.de/id/eprint/37902/1/Fastresponse.pdf https://hdl.handle.net/10013/epic.45484 https://hdl.handle.net/10013/epic.45484.d001 |
genre |
Arctic Sea ice Siberia |
genre_facet |
Arctic Sea ice Siberia |
op_source |
EPIC3High Latitude Dynamics Workshop, Rosendal, Norway, 2015-03-23-2015-03-27 |
op_relation |
https://epic.awi.de/id/eprint/37902/1/Fastresponse.pdf https://hdl.handle.net/10013/epic.45484.d001 Semmler, T. orcid:0000-0002-2254-4901 , Jung, T. orcid:0000-0002-2651-1293 and Serrar, S. (2015) Fast atmospheric response to a sudden thinning of Arctic sea ice , High Latitude Dynamics Workshop, Rosendal, Norway, 23 March 2015 - 27 March 2015 . hdl:10013/epic.45484 |
_version_ |
1810293148398649344 |