气候变化领域集成服务门户(CCPortal): Important role of North Atlantic air–sea coupling in the interannual predictability of summer precipitation over the eastern Tibetan Plateau

CCPortal

DOI	10.1007/s00382-020-05542-6
	Important role of North Atlantic air–sea coupling in the interannual predictability of summer precipitation over the eastern Tibetan Plateau
	Li F.; Wang B.; He Y.; Huang W.; Xu S.; Liu L.; Liu J.; Li L.
发表日期	2021
ISSN	0930-7575
卷号	56 期号:2021-05-06
英文摘要	Tibetan Plateau (TP) summer precipitation, whose first leading mode presents a dipole oscillation between the northeastern and southeastern TP, plays important roles in the water cycle and atmospheric circulation. Using a weakly coupled data assimilation (WCDA) system to constrain the atmospheric component in a coupled model with a global atmospheric reanalysis product, this study demonstrates significant improvements in predicting the interannual variation of summer precipitation over the eastern TP, capturing the strong reversal mode between the northeastern and southeastern TP. These improvements are mainly attributed to the strong air–sea coupling over the North Atlantic (NA) and its remote impacts on the TP precipitation. This coupling allows observation-constrained atmosphere to significantly influence initial conditions (ICs) of sea surface temperature (SST) in the NA area and then obviously affect predictions of both NA SST and summer North Atlantic Oscillation (SNAO), which affects the downstream TP atmospheric circulation through the wave train of Eliassen-Palm (EP) stationary wave flux. This study highlights the importance of NA air–sea coupling in the interannual predictability of TP precipitation and suggests a new source of interannual predictability of TP precipitation. © 2021, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	Air–sea coupling; Summer north Atlantic oscillation; Tibetan plateau summer precipitation; Weakly coupled data assimilation
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/183367
作者单位	Ministry of Education Key Laboratory for Earth System Modeling, and Department of Earth System Science, Tsinghua University, Beijing, 100084, China; State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics (LASG), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; College of Ocean Sciences, University of Chinese Academy of Sciences, Beijing, China
推荐引用方式 GB/T 7714	Li F.,Wang B.,He Y.,等. Important role of North Atlantic air–sea coupling in the interannual predictability of summer precipitation over the eastern Tibetan Plateau[J],2021,56(2021-05-06).
APA	Li F..,Wang B..,He Y..,Huang W..,Xu S..,...&Li L..(2021).Important role of North Atlantic air–sea coupling in the interannual predictability of summer precipitation over the eastern Tibetan Plateau.Climate Dynamics,56(2021-05-06).
MLA	Li F.,et al."Important role of North Atlantic air–sea coupling in the interannual predictability of summer precipitation over the eastern Tibetan Plateau".Climate Dynamics 56.2021-05-06(2021).