气候变化领域集成服务门户(CCPortal): Local atmospheric response to the Kuroshio large meander path in summer and its remote influence on the climate of Japan

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DOI	10.1175/JCLI-D-20-0387.1
	Local atmospheric response to the Kuroshio large meander path in summer and its remote influence on the climate of Japan
	Sugimoto S.; Qiu B.; Schneider N.
发表日期	2021
ISSN	08948755
起始页码	3571
结束页码	3589
卷号	34 期号:9
英文摘要	The Kanto district in Japan, including Tokyo, has 40 million inhabitants and its summer climate is characterized by high temperature and humidity. The Kuroshio that flows off the southern coast of the Kanto district has taken a large meander (LM) path since the summer of 2017 for the first time since the 2004-05 event. Recently developed satellite observations detected marked coastal warming off the Kanto-Tokai district during the LM path period. By conducting regional atmospheric model experiments, it is found that summertime coastal warming increases water vapor in the low-level atmosphere through enhanced evaporation from the ocean and influences near-surface winds via the vertical mixing effect over the warming area. These two changes induce an increase in water vapor in Kanto district, leading to an increase in downward longwave radiation at the surface and then surface warming through a local greenhouse effect. As a result, summer in Kanto district becomes increasingly hot and humid in LM years, with double the number of discomfort days compared with non-LM years. Our simulations and supplementary observational studies reveal the significant impacts of the LM-induced coastal warming on the summertime climate in Japan, which can exceed previously identified atmospheric teleconnections and climate patterns. Our results could improve weather and seasonal climate forecasts in this region. © 2021 American Meteorological Society. For information regarding reuse of this content and general copyright information, consult the AMS Copyright Policy (www.ametsoc.org/PUBSReuseLicenses).
英文关键词	Atmosphere-ocean interaction; Boundary currents; Climate variability; North Pacific Ocean; Numerical analysis/modeling; Summer/warm season
语种	英语
scopus关键词	Greenhouse effect; Ocean currents; Water vapor; Atmospheric model; Atmospheric response; Atmospheric teleconnections; Long-wave radiation; Near-surface winds; Observational study; Satellite observations; Seasonal climate forecast; Atmospheric humidity
来源期刊	Journal of Climate
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/178621
作者单位	Department of Geophysics, Graduate School of Science, Tohoku University, Sendai, Japan; Department of Oceanography, University of Hawai'i at Manoa, Honolulu, HI, United States
推荐引用方式 GB/T 7714	Sugimoto S.,Qiu B.,Schneider N.. Local atmospheric response to the Kuroshio large meander path in summer and its remote influence on the climate of Japan[J],2021,34(9).
APA	Sugimoto S.,Qiu B.,&Schneider N..(2021).Local atmospheric response to the Kuroshio large meander path in summer and its remote influence on the climate of Japan.Journal of Climate,34(9).
MLA	Sugimoto S.,et al."Local atmospheric response to the Kuroshio large meander path in summer and its remote influence on the climate of Japan".Journal of Climate 34.9(2021).