A distinct sub-seasonal modulation in the Atlantic-originated atmospheric teleconnection influence on East Asian monthly climates
The strong sub-seasonal modulation in the atmospheric teleconnection between the North Atlantic and East Asia during boreal winter has been examined. Negative precipitation anomalies and corresponding transient eddy vorticity fluxes over the mid-latitude Atlantic induce a wave packet that leads to c...
Published in: | Environmental Research Letters |
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Online Access: | https://doi.org/10.1088/1748-9326/abd0aa https://doaj.org/article/771e2a52503044a8bacc00cfff91081b |
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ftdoajarticles:oai:doaj.org/article:771e2a52503044a8bacc00cfff91081b 2023-09-05T13:21:32+02:00 A distinct sub-seasonal modulation in the Atlantic-originated atmospheric teleconnection influence on East Asian monthly climates Yoo-Geun Ham Se-Gun Lee Mi-Kyung Sung 2020-01-01T00:00:00Z https://doi.org/10.1088/1748-9326/abd0aa https://doaj.org/article/771e2a52503044a8bacc00cfff91081b EN eng IOP Publishing https://doi.org/10.1088/1748-9326/abd0aa https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/abd0aa 1748-9326 https://doaj.org/article/771e2a52503044a8bacc00cfff91081b Environmental Research Letters, Vol 16, Iss 1, p 014033 (2020) atmospheric teleconnections East Asia winter climate cold surges Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 article 2020 ftdoajarticles https://doi.org/10.1088/1748-9326/abd0aa 2023-08-13T00:37:20Z The strong sub-seasonal modulation in the atmospheric teleconnection between the North Atlantic and East Asia during boreal winter has been examined. Negative precipitation anomalies and corresponding transient eddy vorticity fluxes over the mid-latitude Atlantic induce a wave packet that leads to cold temperatures over northern China, Korea, and Japan. This relationship is significant for the anomalies averaged from mid-January to mid-February, while it is less for January or February. In mid-January segment, the transient vorticity forcing (TVF) over the mid- to high-latitude Atlantic is the strongest, and consequently, the atmospheric response strengthens the anticyclone over central Eurasia to facilitate strong development of the Siberian High as well as cold temperatures in East Asia. Model simulations support the sub-seasonal linkage modulation through amplitude change of the TVF. It is proposed that intensified atmospheric baroclinicity associated with the deepened North American trough is responsible for the pronounced TVF and downstream influences in mid-January. Article in Journal/Newspaper North Atlantic Directory of Open Access Journals: DOAJ Articles Environmental Research Letters 16 1 014033 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
atmospheric teleconnections East Asia winter climate cold surges Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
spellingShingle |
atmospheric teleconnections East Asia winter climate cold surges Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 Yoo-Geun Ham Se-Gun Lee Mi-Kyung Sung A distinct sub-seasonal modulation in the Atlantic-originated atmospheric teleconnection influence on East Asian monthly climates |
topic_facet |
atmospheric teleconnections East Asia winter climate cold surges Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
description |
The strong sub-seasonal modulation in the atmospheric teleconnection between the North Atlantic and East Asia during boreal winter has been examined. Negative precipitation anomalies and corresponding transient eddy vorticity fluxes over the mid-latitude Atlantic induce a wave packet that leads to cold temperatures over northern China, Korea, and Japan. This relationship is significant for the anomalies averaged from mid-January to mid-February, while it is less for January or February. In mid-January segment, the transient vorticity forcing (TVF) over the mid- to high-latitude Atlantic is the strongest, and consequently, the atmospheric response strengthens the anticyclone over central Eurasia to facilitate strong development of the Siberian High as well as cold temperatures in East Asia. Model simulations support the sub-seasonal linkage modulation through amplitude change of the TVF. It is proposed that intensified atmospheric baroclinicity associated with the deepened North American trough is responsible for the pronounced TVF and downstream influences in mid-January. |
format |
Article in Journal/Newspaper |
author |
Yoo-Geun Ham Se-Gun Lee Mi-Kyung Sung |
author_facet |
Yoo-Geun Ham Se-Gun Lee Mi-Kyung Sung |
author_sort |
Yoo-Geun Ham |
title |
A distinct sub-seasonal modulation in the Atlantic-originated atmospheric teleconnection influence on East Asian monthly climates |
title_short |
A distinct sub-seasonal modulation in the Atlantic-originated atmospheric teleconnection influence on East Asian monthly climates |
title_full |
A distinct sub-seasonal modulation in the Atlantic-originated atmospheric teleconnection influence on East Asian monthly climates |
title_fullStr |
A distinct sub-seasonal modulation in the Atlantic-originated atmospheric teleconnection influence on East Asian monthly climates |
title_full_unstemmed |
A distinct sub-seasonal modulation in the Atlantic-originated atmospheric teleconnection influence on East Asian monthly climates |
title_sort |
distinct sub-seasonal modulation in the atlantic-originated atmospheric teleconnection influence on east asian monthly climates |
publisher |
IOP Publishing |
publishDate |
2020 |
url |
https://doi.org/10.1088/1748-9326/abd0aa https://doaj.org/article/771e2a52503044a8bacc00cfff91081b |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Environmental Research Letters, Vol 16, Iss 1, p 014033 (2020) |
op_relation |
https://doi.org/10.1088/1748-9326/abd0aa https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/abd0aa 1748-9326 https://doaj.org/article/771e2a52503044a8bacc00cfff91081b |
op_doi |
https://doi.org/10.1088/1748-9326/abd0aa |
container_title |
Environmental Research Letters |
container_volume |
16 |
container_issue |
1 |
container_start_page |
014033 |
_version_ |
1776202138210271232 |