Arctic Oscillation responses to greenhouse warming and role of synoptic eddy feedback
This study investigates possible changes in the leading mode over the Northern Hemisphere, representing the Arctic Oscillation (AO), in response to the projected increases in greenhouse gas concentrations. This is performed by comparing present-day and future patterns simulated by a relatively high-...
Published in: | Journal of Geophysical Research |
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Language: | English |
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Online Access: | https://oasis.postech.ac.kr/handle/2014.oak/15561 https://doi.org/10.1029/2010JD014160 |
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ftponangunivst:oai:oasis.postech.ac.kr:2014.oak/15561 2023-05-15T14:57:15+02:00 Arctic Oscillation responses to greenhouse warming and role of synoptic eddy feedback Choi, DH Kug, JS Kwon, WT Jin, FF Baek, HJ Min, SK 환경공학부 11198091 Min, SK 2010-09-04 https://oasis.postech.ac.kr/handle/2014.oak/15561 https://doi.org/10.1029/2010JD014160 English eng AGU JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 115 SCI급, SCOPUS 등재논문 SCI Meteorology & Atmospheric Sciences 0148-0227 2010-OAK-0000027492 https://oasis.postech.ac.kr/handle/2014.oak/15561 doi:10.1029/2010JD014160 11444 JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, v.115 000281574200003 2-s2.0-77956482624 ASIAN WINTER MONSOON FREQUENCY FLOW INTERACTION ANNULAR MODES ZONAL INDEX CLIMATE-CHANGE STORM TRACKS EXTRATROPICAL CIRCULATION SOUTHERN-HEMISPHERE PART II VARIABILITY Article ART 2010 ftponangunivst https://doi.org/10.1029/2010JD014160 2022-10-20T20:09:58Z This study investigates possible changes in the leading mode over the Northern Hemisphere, representing the Arctic Oscillation (AO), in response to the projected increases in greenhouse gas concentrations. This is performed by comparing present-day and future patterns simulated by a relatively high-resolution atmospheric general circulation model. It is demonstrated that the dipole pattern associated with the AO distinctively shifts poleward in the future climate. The poleward shift is more pronounced over the Pacific region than over the Atlantic region. This change in the AO pattern is consistent with the change in the synoptic eddy feedback, estimated from the divergence of the eddy-vorticity flux, indicating a close linkage between the AO change and the change in the synoptic eddy feedback. Further analysis of changes in eddy feedback strength suggests a possible hypothesis that the poleward shift of the jet stream and storm tracks can make synoptic eddy feedback more effective over the higher latitudes, which in turn enhances the poleward shift of the AO mode. X 1 1 13 scie scopus Article in Journal/Newspaper Arctic Climate change Pohang University of Science and Technology (POSTECH): Open Access System for Information Sharing (OASIS) Arctic Pacific Journal of Geophysical Research 115 D17 |
institution |
Open Polar |
collection |
Pohang University of Science and Technology (POSTECH): Open Access System for Information Sharing (OASIS) |
op_collection_id |
ftponangunivst |
language |
English |
topic |
ASIAN WINTER MONSOON FREQUENCY FLOW INTERACTION ANNULAR MODES ZONAL INDEX CLIMATE-CHANGE STORM TRACKS EXTRATROPICAL CIRCULATION SOUTHERN-HEMISPHERE PART II VARIABILITY |
spellingShingle |
ASIAN WINTER MONSOON FREQUENCY FLOW INTERACTION ANNULAR MODES ZONAL INDEX CLIMATE-CHANGE STORM TRACKS EXTRATROPICAL CIRCULATION SOUTHERN-HEMISPHERE PART II VARIABILITY Choi, DH Kug, JS Kwon, WT Jin, FF Baek, HJ Min, SK Arctic Oscillation responses to greenhouse warming and role of synoptic eddy feedback |
topic_facet |
ASIAN WINTER MONSOON FREQUENCY FLOW INTERACTION ANNULAR MODES ZONAL INDEX CLIMATE-CHANGE STORM TRACKS EXTRATROPICAL CIRCULATION SOUTHERN-HEMISPHERE PART II VARIABILITY |
description |
This study investigates possible changes in the leading mode over the Northern Hemisphere, representing the Arctic Oscillation (AO), in response to the projected increases in greenhouse gas concentrations. This is performed by comparing present-day and future patterns simulated by a relatively high-resolution atmospheric general circulation model. It is demonstrated that the dipole pattern associated with the AO distinctively shifts poleward in the future climate. The poleward shift is more pronounced over the Pacific region than over the Atlantic region. This change in the AO pattern is consistent with the change in the synoptic eddy feedback, estimated from the divergence of the eddy-vorticity flux, indicating a close linkage between the AO change and the change in the synoptic eddy feedback. Further analysis of changes in eddy feedback strength suggests a possible hypothesis that the poleward shift of the jet stream and storm tracks can make synoptic eddy feedback more effective over the higher latitudes, which in turn enhances the poleward shift of the AO mode. X 1 1 13 scie scopus |
author2 |
환경공학부 11198091 Min, SK |
format |
Article in Journal/Newspaper |
author |
Choi, DH Kug, JS Kwon, WT Jin, FF Baek, HJ Min, SK |
author_facet |
Choi, DH Kug, JS Kwon, WT Jin, FF Baek, HJ Min, SK |
author_sort |
Choi, DH |
title |
Arctic Oscillation responses to greenhouse warming and role of synoptic eddy feedback |
title_short |
Arctic Oscillation responses to greenhouse warming and role of synoptic eddy feedback |
title_full |
Arctic Oscillation responses to greenhouse warming and role of synoptic eddy feedback |
title_fullStr |
Arctic Oscillation responses to greenhouse warming and role of synoptic eddy feedback |
title_full_unstemmed |
Arctic Oscillation responses to greenhouse warming and role of synoptic eddy feedback |
title_sort |
arctic oscillation responses to greenhouse warming and role of synoptic eddy feedback |
publisher |
AGU |
publishDate |
2010 |
url |
https://oasis.postech.ac.kr/handle/2014.oak/15561 https://doi.org/10.1029/2010JD014160 |
geographic |
Arctic Pacific |
geographic_facet |
Arctic Pacific |
genre |
Arctic Climate change |
genre_facet |
Arctic Climate change |
op_relation |
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 115 SCI급, SCOPUS 등재논문 SCI Meteorology & Atmospheric Sciences 0148-0227 2010-OAK-0000027492 https://oasis.postech.ac.kr/handle/2014.oak/15561 doi:10.1029/2010JD014160 11444 JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, v.115 000281574200003 2-s2.0-77956482624 |
op_doi |
https://doi.org/10.1029/2010JD014160 |
container_title |
Journal of Geophysical Research |
container_volume |
115 |
container_issue |
D17 |
_version_ |
1766329330691997696 |