气候变化领域集成服务门户(CCPortal): High-Frequency Wind-Related Seasonal Mean Latent Heat Flux Changes Over the Tropical Indo-Western Pacific in El Niño and La Niña Years

CCPortal

DOI	10.1029/2020JD032954
	High-Frequency Wind-Related Seasonal Mean Latent Heat Flux Changes Over the Tropical Indo-Western Pacific in El Niño and La Niña Years
	Wu R.; Jiao Y.; Wang Y.; Jia X.
发表日期	2020
ISSN	2169897X
卷号	125 期号:21
英文摘要	By decomposing the variations of daily mean variables into synoptic, intraseasonal, and low-frequency components, the present study compares seasonal mean latent heat flux (LHF) anomalies related to the three components over the tropical Indo-Pacific region during El Niño and La Niña years. It is found that the high-frequency (intraseasonal and synoptic) LHF has an important contribution to total seasonal mean LHF anomalies over the tropical eastern Indo-western Pacific region. Large seasonal mean LHF anomalies related to high-frequency wind variations are identified in weak low-frequency seasonal mean wind regions where high-frequency LHF may accumulate over a season as it increases in both westerly and easterly phases of high-frequency wind variations. In those regions, the LHF anomalies related to high-frequency wind variations cancel part of the low-frequency LHF anomalies, reducing total seasonal mean LHF anomalies. As El Niño–Southern Oscillation (ENSO)-induced lower-level wind anomaly region moves with the stage of ENSO, large seasonal mean LHF anomalies related to high-frequency wind variations displace with the season. The intensity of high-frequency wind fluctuations is also a factor influencing the seasonal mean LHF related to high-frequency wind variations. Thus, the ENSO affects the high-frequency LHF variations through modulating both the location of weak low-frequency wind region and intensity of high-frequency wind fluctuations. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	El Niño and La Niña influences; intensity of high-frequency variations; latent heat flux; low- and high-frequency components; tropical Indo-western Pacific
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185674
作者单位	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; Center for Monsoon System Research, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; Guangzhou Meteorological Observatory, Guangzhou, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China
推荐引用方式 GB/T 7714	Wu R.,Jiao Y.,Wang Y.,et al. High-Frequency Wind-Related Seasonal Mean Latent Heat Flux Changes Over the Tropical Indo-Western Pacific in El Niño and La Niña Years[J],2020,125(21).
APA	Wu R.,Jiao Y.,Wang Y.,&Jia X..(2020).High-Frequency Wind-Related Seasonal Mean Latent Heat Flux Changes Over the Tropical Indo-Western Pacific in El Niño and La Niña Years.Journal of Geophysical Research: Atmospheres,125(21).
MLA	Wu R.,et al."High-Frequency Wind-Related Seasonal Mean Latent Heat Flux Changes Over the Tropical Indo-Western Pacific in El Niño and La Niña Years".Journal of Geophysical Research: Atmospheres 125.21(2020).