气候变化领域集成服务门户(CCPortal): Equatorial Moisture Dynamics of the Quasi-Biweekly Oscillation in the Tropical Northwestern Pacific During Boreal Summer

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DOI	10.1029/2020GL090929
	Equatorial Moisture Dynamics of the Quasi-Biweekly Oscillation in the Tropical Northwestern Pacific During Boreal Summer
	Li K.; He Q.; Yang Y.; Yu W.
发表日期	2021
ISSN	0094-8276
卷号	48 期号:2
英文摘要	The pronounced summertime quasi-biweekly oscillation (QBWO) in the tropical northwestern Pacific usually originates from equatorial convective anomalies (ECAs) in the western Pacific. In this study, ECAs in relation to the QBWO are investigated in terms of the equatorial moisture dynamics. The results show that the development of ECAs is preconditioned by significant moisture anomalies associated with zonal moisture advection along the equator. Prior to initiation, an equatorially westward-moving moisture precursor at a speed of approximately 5° longitude per day could be traced back to 140°W. A moisture budget analysis indicates that the successive westward movement of the moisture precursor is primarily due to the interaction between the zonal gradient of moisture anomalies and the mean easterly trade winds. The equatorial moisture dynamics likely maintain the quasi-biweekly variability of ECAs regarding the QBWO in the tropical northwestern Pacific. © 2020. The Authors.
英文关键词	Budget control; Dynamics; Tropics; Moisture advection; Moisture budget; Moisture dynamics; Trade winds; Western Pacific; Moisture
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169188
作者单位	First Institute of Oceanography, Ministry of Natural Resources, Qingdao, China; Laboratory for Regional Oceanography and Numerical Modeling, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; School of Atmospheric Sciences, Sun Yat-Sen University, Zhuhai Campus, Zhuhai, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China
推荐引用方式 GB/T 7714	Li K.,He Q.,Yang Y.,et al. Equatorial Moisture Dynamics of the Quasi-Biweekly Oscillation in the Tropical Northwestern Pacific During Boreal Summer[J],2021,48(2).
APA	Li K.,He Q.,Yang Y.,&Yu W..(2021).Equatorial Moisture Dynamics of the Quasi-Biweekly Oscillation in the Tropical Northwestern Pacific During Boreal Summer.Geophysical Research Letters,48(2).
MLA	Li K.,et al."Equatorial Moisture Dynamics of the Quasi-Biweekly Oscillation in the Tropical Northwestern Pacific During Boreal Summer".Geophysical Research Letters 48.2(2021).