气候变化领域集成服务门户(CCPortal): Atmospheric River Lifecycle Responses to the Madden-Julian Oscillation

CCPortal

DOI	10.1029/2020GL090983
	Atmospheric River Lifecycle Responses to the Madden-Julian Oscillation
	Zhou Y.; Kim H.; Waliser D.E.
发表日期	2021
ISSN	0094-8276
卷号	48 期号:3
英文摘要	We investigate how the Madden-Julian Oscillation (MJO), the dominant mode of tropical subseasonal variability, modulates the lifecycle of cool-season North Pacific atmospheric rivers (ARs). When the enhanced (suppressed) convection center is located over the Indian Ocean (western Pacific), more AR events originate over eastern Asia and with fewer over the subtropical northern Pacific. When the enhanced (suppressed) convection is over the western Pacific (Indian Ocean), the opposite changes occur, with more AR events originate over the subtropical northern Pacific and fewer over eastern Asia. Dynamical processes involving anomalous MJO wind and seasonal mean moisture are found to be the dominant factors impacting these variations in AR origins. The MJO-related anomalous geopotential height patterns are also shown to modulate the propagation of the AR events. These MJO–AR lifecycle relationships are further supported by model simulations. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Tropics; Dominant factor; Dominant mode; Dynamical process; Geo-potential heights; Madden-Julian oscillation; Model simulation; Subseasonal variability; Western Pacific; Climatology
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/169146
作者单位	Lawrence Berkeley National Laboratory, Berkeley, CA, United States; Stony Brook University, Stony Brook, NY, United States; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
推荐引用方式 GB/T 7714	Zhou Y.,Kim H.,Waliser D.E.. Atmospheric River Lifecycle Responses to the Madden-Julian Oscillation[J],2021,48(3).
APA	Zhou Y.,Kim H.,&Waliser D.E..(2021).Atmospheric River Lifecycle Responses to the Madden-Julian Oscillation.Geophysical Research Letters,48(3).
MLA	Zhou Y.,et al."Atmospheric River Lifecycle Responses to the Madden-Julian Oscillation".Geophysical Research Letters 48.3(2021).