气候变化领域集成服务门户(CCPortal): Near-global atmospheric responses to observed springtime tibetan plateau snow anomalies

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DOI	10.1175/JCLI-D-19-0229.1
	Near-global atmospheric responses to observed springtime tibetan plateau snow anomalies
	Liu S.; Wu Q.; Schroeder S.R.; Yao Y.; Zhang Y.; Wu T.; Wang L.; Hu H.
发表日期	2020
ISSN	0894-8755
起始页码	1691
结束页码	1706
卷号	33 期号:5
英文摘要	Previous studies show that there are substantial influences of winter-spring Tibetan Plateau (TP) snow anomalies on the Asian summer monsoon and that autumn-winter TP heavy snow can lead to persisting hemispheric Pacific-North America-like responses. This study further investigates global atmospheric responses to realistic extensive spring TP snow anomalies using observations and ensemble transient model integrations. Model ensemble simulations are forced by satellite-derived observed March-May TP snow cover extent and snow water equivalent in years with heavy or light TP snow. Heavy spring TP snow causes simultaneous significant local surface cooling and precipitation decreases over and near the TP snow anomaly. Distant responses include weaker surface cooling over most Asian areas surrounding the TP, a weaker drying band extending east and northeast into the North Pacific Ocean, and increased precipitation in a region surrounding this drying band. Also, there is tropospheric cooling from the TP into the North Pacific and over most of North America and the North Atlantic Ocean. The TP snow anomaly induces a negative North Pacific Oscillation/western Pacific-like teleconnection response throughout the troposphere and stratosphere. Atmospheric responses also include significantly increased Pacific trade winds, a strengthened intertropical convergence zone over the equatorial Pacific Ocean, and an enhanced local Hadley circulation. This result suggests a near-global impact of the TP snow anomaly in nearly all seasons. © 2020 American Meteorological Society.
英文关键词	Cooling; Oceanography; Troposphere; Asian summer monsoons; Atmospheric response; Equatorial Pacific Ocean; Intertropical convergence zone; North Atlantic Ocean; North Pacific Ocean; Pacific-north america; Snow water equivalent; Snow; atmospheric circulation; computer simulation; ensemble forecasting; monsoon; precipitation assessment; seasonal variation; snow cover; temperature anomaly; Atlantic Ocean; Atlantic Ocean (North); Pacific Ocean; Pacific Ocean (North)
语种	英语
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/171418
作者单位	Department of Atmospheric and Oceanic Sciences, Institute of Atmospheric Sciences, Fudan University, Shanghai, China; Institute of Global Changes, Nanjing University, Nanjing, China; Institute of Atmospheric Sciences, Nanjing University, Nanjing, China; Department of Atmospheric Sciences, Texas AandM University, College Station, TX, United States; National Climate Center, China Meteorological Administration, Beijing, China
推荐引用方式 GB/T 7714	Liu S.,Wu Q.,Schroeder S.R.,et al. Near-global atmospheric responses to observed springtime tibetan plateau snow anomalies[J],2020,33(5).
APA	Liu S..,Wu Q..,Schroeder S.R..,Yao Y..,Zhang Y..,...&Hu H..(2020).Near-global atmospheric responses to observed springtime tibetan plateau snow anomalies.Journal of Climate,33(5).
MLA	Liu S.,et al."Near-global atmospheric responses to observed springtime tibetan plateau snow anomalies".Journal of Climate 33.5(2020).