성층권 돌연승온이 동아시아 지표기온에 미치는 영향
The sudden stratospheric warming (SSW), which is characterized by an abrupt increase of polar stratospheric temperature by several tens of degrees in a week, has been known to affect tropospheric weather and climate on sub-seasonal time scale in the boreal winter. Such downward coupling has been oft...
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한국기상학회
2018
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Online Access: | https://hdl.handle.net/10371/207128 https://doi.org/10.14191/Atmos.2015.25.3.461 |
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ftseoulnuniv:oai:s-space.snu.ac.kr:10371/207128 2024-09-15T18:23:43+00:00 성층권 돌연승온이 동아시아 지표기온에 미치는 영향 Impact of Sudden Stratospheric Warming on the Surface Air Temperature in East Asia 송강현 손석우 우성호 손석우 2018-11-06 https://hdl.handle.net/10371/207128 https://doi.org/10.14191/Atmos.2015.25.3.461 한국어 unknown 한국기상학회 대기, Vol.25 No.3, pp.461-472 1598-3560 https://hdl.handle.net/10371/207128 doi:10.14191/Atmos.2015.25.3.461 66205 ART002038530 Sudden stratospheric warming East Asia surface air temperature stratospheretroposphere downward coupling Article ART 2018 ftseoulnuniv https://doi.org/10.14191/Atmos.2015.25.3.461 2024-08-13T23:46:33Z The sudden stratospheric warming (SSW), which is characterized by an abrupt increase of polar stratospheric temperature by several tens of degrees in a week, has been known to affect tropospheric weather and climate on sub-seasonal time scale in the boreal winter. Such downward coupling has been often examined in North Atlantic and Europe, but rarely examined in East Asia. In this study, by applying the two definitions of SSW to the reanalysis data, the possible impacts of the SSW events on the surface air temperature (SAT) and tropospheric circulation in East Asia are analyzed. It is found that Eurasian continent, including Siberia and the Northeast Asia, tends to experience anomalously cold SAT for up to sixty days after the SSW events. The resulting SAT anomalies largely resemble those associated with negative Artic Oscillation. However, over East Asia, SSW-related SAT change is weak and not statistically significant. Only during the extreme SSW events when the downward coupling between the stratosphere and troposphere is strong, East Asia exhibits significantly cold SAT anomalies. This relationship is presented by grouping SSW events into those followed by cold SAT anomalies over East Asia and those by warm anomalies for varying threshold values of the SSW events. N 2 Article in Journal/Newspaper North Atlantic Siberia Seoul National University: S-Space Atmosphere 25 3 461 472 |
institution |
Open Polar |
collection |
Seoul National University: S-Space |
op_collection_id |
ftseoulnuniv |
language |
unknown |
topic |
Sudden stratospheric warming East Asia surface air temperature stratospheretroposphere downward coupling |
spellingShingle |
Sudden stratospheric warming East Asia surface air temperature stratospheretroposphere downward coupling 송강현 손석우 우성호 성층권 돌연승온이 동아시아 지표기온에 미치는 영향 |
topic_facet |
Sudden stratospheric warming East Asia surface air temperature stratospheretroposphere downward coupling |
description |
The sudden stratospheric warming (SSW), which is characterized by an abrupt increase of polar stratospheric temperature by several tens of degrees in a week, has been known to affect tropospheric weather and climate on sub-seasonal time scale in the boreal winter. Such downward coupling has been often examined in North Atlantic and Europe, but rarely examined in East Asia. In this study, by applying the two definitions of SSW to the reanalysis data, the possible impacts of the SSW events on the surface air temperature (SAT) and tropospheric circulation in East Asia are analyzed. It is found that Eurasian continent, including Siberia and the Northeast Asia, tends to experience anomalously cold SAT for up to sixty days after the SSW events. The resulting SAT anomalies largely resemble those associated with negative Artic Oscillation. However, over East Asia, SSW-related SAT change is weak and not statistically significant. Only during the extreme SSW events when the downward coupling between the stratosphere and troposphere is strong, East Asia exhibits significantly cold SAT anomalies. This relationship is presented by grouping SSW events into those followed by cold SAT anomalies over East Asia and those by warm anomalies for varying threshold values of the SSW events. N 2 |
author2 |
손석우 |
format |
Article in Journal/Newspaper |
author |
송강현 손석우 우성호 |
author_facet |
송강현 손석우 우성호 |
author_sort |
송강현 |
title |
성층권 돌연승온이 동아시아 지표기온에 미치는 영향 |
title_short |
성층권 돌연승온이 동아시아 지표기온에 미치는 영향 |
title_full |
성층권 돌연승온이 동아시아 지표기온에 미치는 영향 |
title_fullStr |
성층권 돌연승온이 동아시아 지표기온에 미치는 영향 |
title_full_unstemmed |
성층권 돌연승온이 동아시아 지표기온에 미치는 영향 |
title_sort |
성층권 돌연승온이 동아시아 지표기온에 미치는 영향 |
publisher |
한국기상학회 |
publishDate |
2018 |
url |
https://hdl.handle.net/10371/207128 https://doi.org/10.14191/Atmos.2015.25.3.461 |
genre |
North Atlantic Siberia |
genre_facet |
North Atlantic Siberia |
op_relation |
대기, Vol.25 No.3, pp.461-472 1598-3560 https://hdl.handle.net/10371/207128 doi:10.14191/Atmos.2015.25.3.461 66205 ART002038530 |
op_doi |
https://doi.org/10.14191/Atmos.2015.25.3.461 |
container_title |
Atmosphere |
container_volume |
25 |
container_issue |
3 |
container_start_page |
461 |
op_container_end_page |
472 |
_version_ |
1810463969014448128 |