气候变化领域集成服务门户(CCPortal): The impact of preceding spring Antarctic oscillation on the variations of lake ice phenology over the Tibetan Plateau

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DOI	10.1175/JCLI-D-19-0111.1
	The impact of preceding spring Antarctic oscillation on the variations of lake ice phenology over the Tibetan Plateau
	Yong L.I.U.; Chen H.; Huixin L.I.; Wang H.
发表日期	2020
ISSN	0894-8755
起始页码	639
结束页码	656
卷号	33 期号:2
英文摘要	The lake ice phenology response to climate change has been receiving growing concern in recent years. However, most studies have put emphasis on the spatial and temporal variability of lake ice phenology, and relatively few studies have been devoted to investigating the physical mechanisms of changes in lake ice phenology from the perspective of climatic dynamics. This study investigates the possible impact of the Antarctic Oscillation (AAO) on the variations in lake ice phenology over the Tibetan Plateau (TP). The results show that there is an intimate relationship between the AAO and the variations in break-up/ice duration during the period 2003-15. Further analysis indicates that the preceding boreal spring AAO-induced atmospheric circulation anomalies are favorable for generating tropical South Atlantic Ocean SST anomalies through air-sea interaction. Then the tropical SST anomalies strengthen the anomalous local-scale meridional-vertical circulation that projects into the Azores high and further induce the extratropical portion of the North Atlantic SST tripole. The anomalous warm core in the North Atlantic serves as the source of wave activity flux and stimulates a stationary wave train along the Eurasian continent to change the downstream atmospheric circulation. As a response, an abnormal cyclone and enhanced updraft are triggered over the TP, which are favorable for the formation of snowfall and then lower the surface air temperature according to the snow-albedo feedback mechanism, and thus result in the prolonged lake ice duration events. This study provides a new insight to link the AAO influence and climate over the TP and is helpful to understand the changes in lake ice phenology in response to climate change in recent years. © 2019 American Meteorological Society. For information regarding reuse of this content and general copyright information, consult the AMS Copyright Policy (www.ametsoc.org/PUBSReuseLicenses).
英文关键词	Biology; Climate change; Fluxes; Lakes; Oceanography; Snow; Storms; Tropics; Air sea interactions; Antarctic oscillation; Atmospheric circulation; Atmospheric circulation anomaly; Snow-albedo feedbacks; Spatial and temporal variability; Surface air temperatures; Vertical circulation; Ice; air-sea interaction; Antarctic Oscillation; atmospheric circulation; climate change; ice; sea surface temperature; spring (season); temperature anomaly; Atlantic Ocean; Atlantic Ocean (South); Azores; China; Portugal; Qinghai-Xizang Plateau
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/171498
作者单位	Nansen-Zhu International Research Centre, Institute of Atmospheric Physics, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Beijing, China; Nansen-Zhu International Research Centre, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University for Information Science and Technology, Nanjing, China; Joint Laboratory of Climate and Environment Change, Chengdu University of Information Technology, Chengdu, China; Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University for Information Science and Technology, Nanjing, China
推荐引用方式 GB/T 7714	Yong L.I.U.,Chen H.,Huixin L.I.,et al. The impact of preceding spring Antarctic oscillation on the variations of lake ice phenology over the Tibetan Plateau[J],2020,33(2).
APA	Yong L.I.U.,Chen H.,Huixin L.I.,&Wang H..(2020).The impact of preceding spring Antarctic oscillation on the variations of lake ice phenology over the Tibetan Plateau.Journal of Climate,33(2).
MLA	Yong L.I.U.,et al."The impact of preceding spring Antarctic oscillation on the variations of lake ice phenology over the Tibetan Plateau".Journal of Climate 33.2(2020).