气候变化领域集成服务门户(CCPortal): The Influence of Interdecadal Changes in Boreal Winter Teleconnections Around the 1980s on Planetary Waves and Stratospheric Sudden Warmings

CCPortal

DOI	10.1029/2021JD035341
	The Influence of Interdecadal Changes in Boreal Winter Teleconnections Around the 1980s on Planetary Waves and Stratospheric Sudden Warmings
	Li Y.; Wen Z.
发表日期	2021
ISSN	2169-897X
卷号	126 期号:19
英文摘要	This study investigated the influence of the interdecadal changes in the Pacific-North America (PNA) and Western Pacific (WP) teleconnections on the planetary waves and stratospheric sudden warmings (SSWs), based on the National Center for Environmental Prediction reanalysis and Japanese 55-year reanalysis. Before the 1980s, there were more negative PNA & negative WP combinations (−PNA&−WP), and after the 1980s, there were more +PNA&+WP. +PNA&−WP and −PNA&+WP had no significant interdecadal changes before and after the 1980s. The interdecadal changes in the teleconnection combinations may be related to the Pacific Decadal Oscillation (PDO). During +PNA&+WP (−PNA&−WP), the planetary waves with wavenumber 1 have the maximum (minimum) wave energy and propagating more (less) to the stratosphere, causing a greater (lesser) frequency of SSWs. Thus, the interdecadal changes in the teleconnection combinations are one of the important factors which could contribute to the possible increase in SSWs after the 1980s. Since there are no satellite observations on the stratosphere before 1979, there are still many uncertainties in the interdecadal changes in SSWs. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	interdecadal change; SSW; teleconnections
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/236984
作者单位	Institute of Atmospheric Sciences, Fudan University, Shanghai, China
推荐引用方式 GB/T 7714	Li Y.,Wen Z.. The Influence of Interdecadal Changes in Boreal Winter Teleconnections Around the 1980s on Planetary Waves and Stratospheric Sudden Warmings[J],2021,126(19).
APA	Li Y.,&Wen Z..(2021).The Influence of Interdecadal Changes in Boreal Winter Teleconnections Around the 1980s on Planetary Waves and Stratospheric Sudden Warmings.Journal of Geophysical Research: Atmospheres,126(19).
MLA	Li Y.,et al."The Influence of Interdecadal Changes in Boreal Winter Teleconnections Around the 1980s on Planetary Waves and Stratospheric Sudden Warmings".Journal of Geophysical Research: Atmospheres 126.19(2021).