气候变化领域集成服务门户(CCPortal): Impacts of the Indo-Pacific Warm Pool on Lower Stratospheric Water Vapor: Seasonality and Hemispheric Contrasts

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DOI	10.1029/2020JD034363
	Impacts of the Indo-Pacific Warm Pool on Lower Stratospheric Water Vapor: Seasonality and Hemispheric Contrasts
	Zhou X.; Chen Q.; Li Y.; Zhao Y.; Lin Y.; Jiang Y.
发表日期	2021
ISSN	2169897X
卷号	126 期号:10
英文摘要	Using time-slice experiments performed with version 4 of the Whole Atmosphere Community Climate Model (WACCM4) and satellite observations, we investigate hemispheric differences in, and the seasonal dependence of, water vapor transport into the stratosphere in response to Indo-Pacific warm pool (IPWP) sea-surface temperature (SST) variations. Specifically, the amplitude of the lower stratospheric water vapor (SWV) response to a warmer (cooler) IPWP (i.e., IPWP Niño [Niña]) occurs mainly in boreal winter when the IPWP SST forcing is identical for different seasons, and the response in the northern tropics (NT) is greater than that in the southern tropics (ST). The seasonality in and hemispheric contrasts of the SWV response to IPWP Niño and IPWP Niña are traced to the tropical cold point temperature, including its zonally symmetric pattern associated with tropical upwelling and its zonally asymmetric features that manifest as the morphology of the coldest point region. Together with the seasonal variations in topical upwelling response, the morphology of the coldest point region, which is affected by equatorial planetary waves and the summer monsoon, determines the seasonality and NT-ST contrasts in the SWV response to IPWP SST forcing. Among these factors, the importance of the climatological displacement of convective activity from the equator to NT associated with the summer monsoon is highlighted. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	Hemispheric contrasts; IPWP Niño/Niña; seasonality; stratospheric water vapor
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/185189
作者单位	Plateau Atmosphere and Environment Key Laboratory of Sichuan Province, College of Atmospheric Science, Chengdu University of Information Technology, Chengdu, China; Xingshan Meteorological Bureau, China Meteorological Administration, Yichang, China
推荐引用方式 GB/T 7714	Zhou X.,Chen Q.,Li Y.,et al. Impacts of the Indo-Pacific Warm Pool on Lower Stratospheric Water Vapor: Seasonality and Hemispheric Contrasts[J],2021,126(10).
APA	Zhou X.,Chen Q.,Li Y.,Zhao Y.,Lin Y.,&Jiang Y..(2021).Impacts of the Indo-Pacific Warm Pool on Lower Stratospheric Water Vapor: Seasonality and Hemispheric Contrasts.Journal of Geophysical Research: Atmospheres,126(10).
MLA	Zhou X.,et al."Impacts of the Indo-Pacific Warm Pool on Lower Stratospheric Water Vapor: Seasonality and Hemispheric Contrasts".Journal of Geophysical Research: Atmospheres 126.10(2021).