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The Role of the Pacific-Japan Pattern in Extreme Heatwaves Over Korea and Japan

Cited 3 time in wos
Cited 3 time in scopus
Title
The Role of the Pacific-Japan Pattern in Extreme Heatwaves Over Korea and Japan
Other Titles
한국과 일본 지역 폭염 발생에서 태평양-일본 모드의 역할
Authors
Noh, El
Kim, Joowan
Jun, Sang-Yoon
Cha, Dong-Hyun
Park, Myung-Sook
Kim, Joo-Hong
Kim, Hyeong-Gyu
Subject
Geology
Keywords
Pacific-Japan patternheatwaveshorizontal temperature advection
Issue Date
2021
Citation
Noh, El, et al. 2021. "The Role of the Pacific-Japan Pattern in Extreme Heatwaves Over Korea and Japan". GEOPHYSICAL RESEARCH LETTERS, 48(18): 1-12.
Abstract
In the Northwestern Pacific, the meridionally propagating Rossby waves, known as the Pacific-Japan (PJ) pattern, is the dominant teleconnection pattern and is considered as a source of heatwaves in East Asia. In this study, the circulation and thermodynamic characteristics of these patterns were investigated based on daily timescale to evaluate their relationship with the likelihood of heatwaves in Korea and Japan. The investigations reveal that stations in Korea and Japan record approximately 90% increase in extremely hot days (Tmax > 35°C) during the positive PJ pattern events. According to thermodynamic budget, horizontal heat advection is a key factor for the observed near-surface warming during the positive PJ. The circulation pattern during the positive PJ largely explains the enhanced warm advection and physical heating due to the increased insolation and adiabatic heating are secondary factors for near-surface warming. This phenomenon is robustly observed regardless of the definition.
URI
https://repository.kopri.re.kr/handle/201206/13640
DOI
http://dx.doi.org/10.1029/2021GL093990
Type
Article
Station
해당사항없음
Indexed
SCIE
Appears in Collections  
2021-2021, Investigation and prediction system development of marine heatwave around the Korean Peninsula originated from the subarctic and western Pacific (21-21) / Jun, Sang-Yoon (PM21090)
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