Atmospheric response to the extreme Arctic sea ice conditions in 2007
An atmospheric general circulation model driven with the observed 2007 extreme Arctic sea surface temperatures and sea ice concentrations responds with higher surface air temperature over northern Siberia and the Eastern Arctic Ocean (+3 K), increased heat uptake of the ocean in summer (+40 W/m2) an...
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Online Access: | https://epic.awi.de/id/eprint/25750/ https://doi.org/10.1029/2011GL050486 https://hdl.handle.net/10013/epic.38716 |
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ftawi:oai:epic.awi.de:25750 2023-05-15T14:25:44+02:00 Atmospheric response to the extreme Arctic sea ice conditions in 2007 Blüthgen, Jonas Gerdes, Rüdiger Werner, Martin 2012-01-31 https://epic.awi.de/id/eprint/25750/ https://doi.org/10.1029/2011GL050486 https://hdl.handle.net/10013/epic.38716 unknown American Geophysical Union Blüthgen, J. , Gerdes, R. and Werner, M. orcid:0000-0002-6473-0243 (2012) Atmospheric response to the extreme Arctic sea ice conditions in 2007 , Geophysical Research Letters, 39 (2) . doi:10.1029/2011GL050486 <https://doi.org/10.1029/2011GL050486> , hdl:10013/epic.38716 EPIC3Geophysical Research Letters, American Geophysical Union, 39(2), ISSN: 0094-8276 Article isiRev 2012 ftawi https://doi.org/10.1029/2011GL050486 2021-12-24T15:35:30Z An atmospheric general circulation model driven with the observed 2007 extreme Arctic sea surface temperatures and sea ice concentrations responds with higher surface air temperature over northern Siberia and the Eastern Arctic Ocean (+3 K), increased heat uptake of the ocean in summer (+40 W/m2) and increased oceanic heat losses in fall (60 W/m2) compared to a climatological scenario. A pronounced low sea level pressure anomaly over the Eastern Arctic (200 Pa) reinforces a sea level pressure dipole over the Arctic that has been observed to become an increasingly important feature of the Arctic atmospheric circulation in summer. The anomalous pressure distribution contributes to sea ice transport from the Eastern Arctic and is likely to reinforce the original sea ice extent anomaly. The results thus support assessments of observational data over recent years that sea ice loss may feed back onto the atmospheric circulation in the northern hemisphere. The resulting late summer / early fall (JAS) atmospheric anomalies are very robust; they appear in virtually all of the 40 realizations of the experiment. However, we find no significant continuation of the atmospheric signal into the winter as has been suggested based on atmospheric observational data. Article in Journal/Newspaper Arctic Arctic Arctic Ocean Sea ice Siberia Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Arctic Ocean Geophysical Research Letters 39 2 n/a n/a |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
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description |
An atmospheric general circulation model driven with the observed 2007 extreme Arctic sea surface temperatures and sea ice concentrations responds with higher surface air temperature over northern Siberia and the Eastern Arctic Ocean (+3 K), increased heat uptake of the ocean in summer (+40 W/m2) and increased oceanic heat losses in fall (60 W/m2) compared to a climatological scenario. A pronounced low sea level pressure anomaly over the Eastern Arctic (200 Pa) reinforces a sea level pressure dipole over the Arctic that has been observed to become an increasingly important feature of the Arctic atmospheric circulation in summer. The anomalous pressure distribution contributes to sea ice transport from the Eastern Arctic and is likely to reinforce the original sea ice extent anomaly. The results thus support assessments of observational data over recent years that sea ice loss may feed back onto the atmospheric circulation in the northern hemisphere. The resulting late summer / early fall (JAS) atmospheric anomalies are very robust; they appear in virtually all of the 40 realizations of the experiment. However, we find no significant continuation of the atmospheric signal into the winter as has been suggested based on atmospheric observational data. |
format |
Article in Journal/Newspaper |
author |
Blüthgen, Jonas Gerdes, Rüdiger Werner, Martin |
spellingShingle |
Blüthgen, Jonas Gerdes, Rüdiger Werner, Martin Atmospheric response to the extreme Arctic sea ice conditions in 2007 |
author_facet |
Blüthgen, Jonas Gerdes, Rüdiger Werner, Martin |
author_sort |
Blüthgen, Jonas |
title |
Atmospheric response to the extreme Arctic sea ice conditions in 2007 |
title_short |
Atmospheric response to the extreme Arctic sea ice conditions in 2007 |
title_full |
Atmospheric response to the extreme Arctic sea ice conditions in 2007 |
title_fullStr |
Atmospheric response to the extreme Arctic sea ice conditions in 2007 |
title_full_unstemmed |
Atmospheric response to the extreme Arctic sea ice conditions in 2007 |
title_sort |
atmospheric response to the extreme arctic sea ice conditions in 2007 |
publisher |
American Geophysical Union |
publishDate |
2012 |
url |
https://epic.awi.de/id/eprint/25750/ https://doi.org/10.1029/2011GL050486 https://hdl.handle.net/10013/epic.38716 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Arctic Ocean Sea ice Siberia |
genre_facet |
Arctic Arctic Arctic Ocean Sea ice Siberia |
op_source |
EPIC3Geophysical Research Letters, American Geophysical Union, 39(2), ISSN: 0094-8276 |
op_relation |
Blüthgen, J. , Gerdes, R. and Werner, M. orcid:0000-0002-6473-0243 (2012) Atmospheric response to the extreme Arctic sea ice conditions in 2007 , Geophysical Research Letters, 39 (2) . doi:10.1029/2011GL050486 <https://doi.org/10.1029/2011GL050486> , hdl:10013/epic.38716 |
op_doi |
https://doi.org/10.1029/2011GL050486 |
container_title |
Geophysical Research Letters |
container_volume |
39 |
container_issue |
2 |
container_start_page |
n/a |
op_container_end_page |
n/a |
_version_ |
1766298191189245952 |