气候变化领域集成服务门户(CCPortal): The atlantic multidecadal variability phase dependence of teleconnection between the north atlantic oscillation in february and the tibetan plateau in March

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DOI	10.1175/JCLI-D-20-0157.1
	The atlantic multidecadal variability phase dependence of teleconnection between the north atlantic oscillation in february and the tibetan plateau in March
	Li J.; Li F.; He S.; Wang H.; Orsolini Y.J.
发表日期	2021
ISSN	08948755
起始页码	4227
结束页码	4242
卷号	34 期号:11
英文摘要	The Tibetan Plateau (TP), referred to as the ‘‘Asian water tower,’’ contains one of the largest land ice masses on Earth. The local glacier shrinkage and frozen-water storage are strongly affected by variations in surface air temperature over the TP (TPSAT), especially in springtime. This study reveals that the relationship between the February North Atlantic Oscillation (NAO) and March TPSAT is unstable with time and regulated by the phase of the Atlantic multidecadal variability (AMV). The significant out-of-phase connection occurs only during the warm phase of AMV (AMV1). The results show that during the AMV1, the negative phase of the NAO persists from February to March, and is accompanied by a quasi-stationary Rossby wave train trapped along a northward-shifted subtropical westerly jet stream across Eurasia, inducing an anomalous adiabatic descent that warms the TP. However, during the cold phase of the AMV, the negative NAO cannot persist into March. The Rossby wave train propagates along the well-separated polar and subtropical westerly jets, and the NAO–TPSAT connection is broken. Further investigation suggests that the enhanced synoptic eddy and low-frequency flow (SELF) interaction over the North Atlantic in February and March during the AMV1, caused by the southward-shifted storm track, helps maintain the NAO pattern via positive eddy feedback. This study provides a new detailed perspective on the decadal variability of the North Atlantic–TP connection in late winter to early spring. © 2021 American Meteorological Society.
英文关键词	Atmosphere-ocean interaction; Eddies; Feedback; Rossby waves; Teleconnections
语种	英语
scopus关键词	Atmospheric pressure; Mechanical waves; Tropics; Water towers; Decadal variability; Multidecadal variability; North Atlantic oscillations; Phase dependence; Quasi-stationary; Surface air temperatures; Teleconnections; Westerly jet streams; Oceanography
来源期刊	Journal of Climate
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/178549
作者单位	Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, China; Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Key Laboratory of MeteorologicalDisaster, Ministry of Education, Nanjing University of Information Science and Technology, Nanjing, China; Geophysical Institute, University of Bergen, Bjerknes Centre for Climate Research, Bergen, Norway; Climate Change Research Center, Chinese Academy of Sciences, Beijing, China; Nansen-Zhu International Research Center, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; NILU-Norwegian Institute for Air Research, Kjeller, Norway
推荐引用方式 GB/T 7714	Li J.,Li F.,He S.,et al. The atlantic multidecadal variability phase dependence of teleconnection between the north atlantic oscillation in february and the tibetan plateau in March[J],2021,34(11).
APA	Li J.,Li F.,He S.,Wang H.,&Orsolini Y.J..(2021).The atlantic multidecadal variability phase dependence of teleconnection between the north atlantic oscillation in february and the tibetan plateau in March.Journal of Climate,34(11).
MLA	Li J.,et al."The atlantic multidecadal variability phase dependence of teleconnection between the north atlantic oscillation in february and the tibetan plateau in March".Journal of Climate 34.11(2021).