气候变化领域集成服务门户(CCPortal): Upscale feedback of high-frequency winds on seasonal SST change over the tropical western North Pacific during boreal summer

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DOI	10.1007/s00382-020-05391-3
	Upscale feedback of high-frequency winds on seasonal SST change over the tropical western North Pacific during boreal summer
	Wang Y.; Wu R.; Jiao Y.
发表日期	2020
ISSN	0930-7575
起始页码	2439
结束页码	2451
卷号	55
英文摘要	Present study compares the contribution of low-frequency (> 90-day) and high-frequency (< 90-day) variation-related latent heat flux (LHF) to seasonal sea surface temperature (SST) change during boreal summer. It is revealed that both low- and high-frequency LHFs have prominent but opposite contributions to seasonal SST change in the tropical western North Pacific (WNP) during boreal summer. The feedback of high-frequency LHF on the seasonal SST change in the WNP is strong during El Niño events but weak during La Niña events. The difference in the feedback of high-frequency LHF is due to two factors. One is the background surface wind and the other is the intensity of high-frequency wind fluctuations. The high-frequency LHF displays a large non-linear dependence on surface wind under the weak background surface wind during El Niño developing summers, which leads to an accumulation of high-frequency daily LHF in summer mean. The high-frequency wind variability is large over the WNP during El Niño developing summers, which further enhances the accumulation of high-frequency daily LHF. The strong background surface wind and relatively weak high-frequency wind variability during La Niña developing summers are unfavorable for the accumulation of high-frequency daily LHF. This leads to a small summer mean of high-frequency LHF so that the upscale feedback of high-frequency wind variations on seasonal SST change is weak in the WNP during La Niña developing summers. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	El Niño and La Niña; High-frequency wind variations; Seasonal SST change; The western North Pacific; Upscale feedback
语种	英语
scopus关键词	climate feedback; El Nino; La Nina; latent heat flux; sea surface temperature; seasonal variation; summer; surface wind; Pacific Ocean; Pacific Ocean (North)
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/145305
作者单位	Center for Monsoon System Research, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China; School of Earth Sciences, Zhejiang University, Hangzhou, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China; Guangzhou Meteorological Observatory, Guangzhou, China
推荐引用方式 GB/T 7714	Wang Y.,Wu R.,Jiao Y.. Upscale feedback of high-frequency winds on seasonal SST change over the tropical western North Pacific during boreal summer[J],2020,55.
APA	Wang Y.,Wu R.,&Jiao Y..(2020).Upscale feedback of high-frequency winds on seasonal SST change over the tropical western North Pacific during boreal summer.Climate Dynamics,55.
MLA	Wang Y.,et al."Upscale feedback of high-frequency winds on seasonal SST change over the tropical western North Pacific during boreal summer".Climate Dynamics 55(2020).