气候变化领域集成服务门户(CCPortal): Factors of boreal summer latent heat flux variations over the tropical western North Pacific

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DOI	10.1007/s00382-021-05835-4
	Factors of boreal summer latent heat flux variations over the tropical western North Pacific
	Wang Y.; Wu R.
发表日期	2021
ISSN	0930-7575
起始页码	683
结束页码	685
英文摘要	Surface latent heat flux (LHF) is an important component in the heat exchange between the ocean and atmosphere over the tropical western North Pacific (WNP). The present study investigates the factors of seasonal mean LHF variations in boreal summer over the tropical WNP. Seasonal mean LHF is separated into two parts that are associated with low-frequency (> 90-day) and high-frequency (≤ 90-day) atmospheric variability, respectively. It is shown that low-frequency LHF variations are attributed to low-frequency surface wind and sea-air humidity difference, whereas high-frequency LHF variations are associated with both low-frequency surface wind speed and high-frequency wind intensity. A series of conceptual cases are constructed using different combinations of low- and high-frequency winds to inspect the respective effects of low-frequency wind and high-frequency wind amplitude to seasonal mean LHF variations. It is illustrated that high-frequency wind fluctuations contribute to seasonal high-frequency LHF only when their intensity exceeds the low-frequency wind speed under which there is seasonal accumulation of high-frequency LHF. When high-frequency wind intensity is smaller than the low-frequency wind speed, seasonal mean high-frequency LHF is negligible. Total seasonal mean LHF anomalies depend on relative contributions of low- and high-frequency atmospheric variations and have weak interannual variance over the tropical WNP due to cancellation of low- and high-frequency LHF anomalies. © 2021, The Author(s).
英文关键词	High-frequency wind intensity; Low-frequency surface wind speed; Surface latent heat flux; Tropical western North Pacific
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/183427
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; Department of Atmospheric Sciences and Key Laboratory of Geoscience Big Data and Deep Resource of Zhejiang Province, School of Earth Sciences, Zhejiang University, Hangzhou, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China
推荐引用方式 GB/T 7714	Wang Y.,Wu R.. Factors of boreal summer latent heat flux variations over the tropical western North Pacific[J],2021.
APA	Wang Y.,&Wu R..(2021).Factors of boreal summer latent heat flux variations over the tropical western North Pacific.Climate Dynamics.
MLA	Wang Y.,et al."Factors of boreal summer latent heat flux variations over the tropical western North Pacific".Climate Dynamics (2021).