한반도 혹한 발생시 종관장 특성과 대규모 기후 변동성 간의 연관성
This study explores the synoptic characteristics of cold days over South Korea and their relationship with large-scale climate variability. The cold day, which is different from cold surge, is defined when daily-mean surface air temperature, averaged over 11 KMA stations, is colder than 1-percentile...
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한국기상학회
2018
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Online Access: | https://hdl.handle.net/10371/207127 https://doi.org/10.14191/Atmos.2015.25.3.435 |
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ftseoulnuniv:oai:s-space.snu.ac.kr:10371/207127 2024-09-09T19:26:49+00:00 한반도 혹한 발생시 종관장 특성과 대규모 기후 변동성 간의 연관성 Synoptic Characteristics of Cold Days over South Korea and Their Relationship with Large-Scale Climate Variability 유영은 손석우 김형석 정지훈 손석우 2018-11-06 https://hdl.handle.net/10371/207127 https://doi.org/10.14191/Atmos.2015.25.3.435 한국어 unknown 한국기상학회 대기, Vol.25 No.3, pp.435-447 1598-3560 https://hdl.handle.net/10371/207127 doi:10.14191/Atmos.2015.25.3.435 66206 ART002038520 SURFACE-TEMPERATURE CIRCULATION OSCILLATION PERSISTENCE FREQUENCY TRENDS Cold day blocking climate variability Article ART 2018 ftseoulnuniv https://doi.org/10.14191/Atmos.2015.25.3.435 2024-08-13T23:46:33Z This study explores the synoptic characteristics of cold days over South Korea and their relationship with large-scale climate variability. The cold day, which is different from cold surge, is defined when daily-mean surface air temperature, averaged over 11 KMA stations, is colder than 1-percentile temperature in each year by considering its long-term trend over 1960~2012. Such event is detected by quantile regression and the related synoptic patterns are identified in reanalysis data. Composite geopotential height anomalies at 500 hPa show that cold days are often preceded by positive anomalies in high latitudes and negative anomalies in midlatitudes on the west of Korea. While the formers are quasi-stationary and quasi-barotropic, and often qualified as blocking highs, the latters are associated with transient cyclones. At cold days, the north-south dipole in geopotential height anomalies becomes west-east dipole in the lower troposphere as high-latitude anticyclone expands equatorward to the Northern China and mid-latitude cyclone moves eastward and rapidly develops over the East Sea. The resulting northerlies cause cold days in Korea. By performing composite analyses of largescale climate indices, it is further found that the occurrence of these cold days are preferable when the Arctic Oscillation is in its negative phase and/or East Asian monsoon circulation and Siberian high are anomalously strong. N 2 Article in Journal/Newspaper Arctic Seoul National University: S-Space Arctic Atmosphere 25 3 435 447 |
institution |
Open Polar |
collection |
Seoul National University: S-Space |
op_collection_id |
ftseoulnuniv |
language |
unknown |
topic |
SURFACE-TEMPERATURE CIRCULATION OSCILLATION PERSISTENCE FREQUENCY TRENDS Cold day blocking climate variability |
spellingShingle |
SURFACE-TEMPERATURE CIRCULATION OSCILLATION PERSISTENCE FREQUENCY TRENDS Cold day blocking climate variability 유영은 손석우 김형석 정지훈 한반도 혹한 발생시 종관장 특성과 대규모 기후 변동성 간의 연관성 |
topic_facet |
SURFACE-TEMPERATURE CIRCULATION OSCILLATION PERSISTENCE FREQUENCY TRENDS Cold day blocking climate variability |
description |
This study explores the synoptic characteristics of cold days over South Korea and their relationship with large-scale climate variability. The cold day, which is different from cold surge, is defined when daily-mean surface air temperature, averaged over 11 KMA stations, is colder than 1-percentile temperature in each year by considering its long-term trend over 1960~2012. Such event is detected by quantile regression and the related synoptic patterns are identified in reanalysis data. Composite geopotential height anomalies at 500 hPa show that cold days are often preceded by positive anomalies in high latitudes and negative anomalies in midlatitudes on the west of Korea. While the formers are quasi-stationary and quasi-barotropic, and often qualified as blocking highs, the latters are associated with transient cyclones. At cold days, the north-south dipole in geopotential height anomalies becomes west-east dipole in the lower troposphere as high-latitude anticyclone expands equatorward to the Northern China and mid-latitude cyclone moves eastward and rapidly develops over the East Sea. The resulting northerlies cause cold days in Korea. By performing composite analyses of largescale climate indices, it is further found that the occurrence of these cold days are preferable when the Arctic Oscillation is in its negative phase and/or East Asian monsoon circulation and Siberian high are anomalously strong. N 2 |
author2 |
손석우 |
format |
Article in Journal/Newspaper |
author |
유영은 손석우 김형석 정지훈 |
author_facet |
유영은 손석우 김형석 정지훈 |
author_sort |
유영은 |
title |
한반도 혹한 발생시 종관장 특성과 대규모 기후 변동성 간의 연관성 |
title_short |
한반도 혹한 발생시 종관장 특성과 대규모 기후 변동성 간의 연관성 |
title_full |
한반도 혹한 발생시 종관장 특성과 대규모 기후 변동성 간의 연관성 |
title_fullStr |
한반도 혹한 발생시 종관장 특성과 대규모 기후 변동성 간의 연관성 |
title_full_unstemmed |
한반도 혹한 발생시 종관장 특성과 대규모 기후 변동성 간의 연관성 |
title_sort |
한반도 혹한 발생시 종관장 특성과 대규모 기후 변동성 간의 연관성 |
publisher |
한국기상학회 |
publishDate |
2018 |
url |
https://hdl.handle.net/10371/207127 https://doi.org/10.14191/Atmos.2015.25.3.435 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
대기, Vol.25 No.3, pp.435-447 1598-3560 https://hdl.handle.net/10371/207127 doi:10.14191/Atmos.2015.25.3.435 66206 ART002038520 |
op_doi |
https://doi.org/10.14191/Atmos.2015.25.3.435 |
container_title |
Atmosphere |
container_volume |
25 |
container_issue |
3 |
container_start_page |
435 |
op_container_end_page |
447 |
_version_ |
1809896371906412544 |