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Dynamical response of atmospheric circulation to below-normal East Sea sea surface temperatures associated with heavy snowfall in eastern Korea

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Title
Dynamical response of atmospheric circulation to below-normal East Sea sea surface temperatures associated with heavy snowfall in eastern Korea
Other Titles
한반도 폭설과 연관된 동해 저온사상에 대한 대기순환의 역학적 변화
Authors
Kim, Taekyun
Kim, Yoonjae
Moon, Jae-Hong
Jin, Emilia Kyung
Subject
Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
Keywords
heavy snowfall; East Sea; heavy snowfall-related sea surface temperature; atmospheric circulation
Issue Date
2020-07
Citation
Kim, Taekyun, et al. 2020. "Dynamical response of atmospheric circulation to below-normal East Sea sea surface temperatures associated with heavy snowfall in eastern Korea". ENVIRONMENTAL RESEARCH LETTERS, 15(7): 074024-074024.
Abstract
Prior studies have shown that above-normal sea surface temperatures (SSTs) enhance snowfall over Korea. Here, we show that heavy snow is also associated with below-normal East Sea SSTs, and we investigate the dynamical response of the atmosphere to this surface condition using observations and numerical modeling. The results indicate that anomalous southeasterly/easterly winds are induced by heavy snowfall-related cold SST anomalies, and consequently, the moisture flux is converged. The existence of the southeasterly winds and the accompanied moisture flux convergence appear to be instrumental in producing the heavy snowfall events. The anomalous southeasterly/easterly winds associated with heavy snowfall-related cold SST anomalies reduce the climatological northwesterly/westerly winds, leading to relatively warm and wet conditions over the east coast of Korea that are favorable for forming and intensifying snowfall events in the region.
URI
https://repository.kopri.re.kr/handle/201206/11874
DOI
http://dx.doi.org/10.1088/1748-9326/ab8dd9
Appears in Collections  
2020-2020, Land-Ice/Ocean Network Exploration with Semiautonomous Systems: Thwaites Glacier (LIONESS/TG) - Toward understanding the fate of the Thwaites Glacier by abrupt collapse and its impact on global sea level changes - (20-20) / Lee, Won Sang (PM20020)
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