气候变化领域集成服务门户(CCPortal): Effects of the Largest Lake of the Tibetan Plateau on the Regional Climate

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DOI	10.1029/2020JD033396
	Effects of the Largest Lake of the Tibetan Plateau on the Regional Climate
	Su D.; Wen L.; Gao X.; Leppäranta M.; Song X.; Shi Q.; Kirillin G.
发表日期	2020
ISSN	2169897X
卷号	125 期号:22
英文摘要	Qinghai Lake is the largest lake in China. However, its influence on the local climate remains poorly understood. By using an atmosphere-lake coupled model, we investigated the impact of the lake on the local climate. After the adjustment of four key parameters, the model reasonably reproduced the lake-air interaction. Superimposed by the orographic effects on lake-land breeze circulation, the presence of the lake enhanced precipitation over the southern part of the lake and its adjacent land, while slightly reduced precipitation along the northern shore of the lake. The lake effect on local precipitation revealed a distinct seasonal and diurnal variability, reducing precipitation in May (−6.6%) and June (−4.5%) and increasing it from July (5.7%) to November (125.6%). During the open water season, the lake's daytime cooling effect weakened and the nighttime warming effect strengthened, affecting spatial distribution and intensity of lake-induced precipitation. In early summer, precipitation slightly decreased over the north part of the lake due to the lake's daytime cooling. In turn, lake-induced nighttime warming increased precipitation over the southern section of the lake and its adjacent land. With the start of the autumn cooling in September, heat and moisture fluxes from the lake resulted in precipitation increase in both daytime and nighttime over the entire lake. In October, the background atmospheric circulation coupled with the strong lake effects lead to a small amount but high proportion of lake-induced precipitation spreading evenly over the lake. ©2020. American Geophysical Union. All Rights Reserved.
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185636
作者单位	Key Laboratory of Land Surface Process and Climate Change in Cold and Arid Regions, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China; Institute of Atmospheric and Earth Sciences, University of Helsinki, Helsinki, Finland; School of Atmospheric Sciences, Chengdu University of Information Technology, Chengdu, China; College of Resources and Environmental Sciences, Gansu Agricultural University, Lanzhou, China; Department of Ecohydrology, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany
推荐引用方式 GB/T 7714	Su D.,Wen L.,Gao X.,et al. Effects of the Largest Lake of the Tibetan Plateau on the Regional Climate[J]. 中国科学院西北生态环境资源研究院,2020,125(22).
APA	Su D..,Wen L..,Gao X..,Leppäranta M..,Song X..,...&Kirillin G..(2020).Effects of the Largest Lake of the Tibetan Plateau on the Regional Climate.Journal of Geophysical Research: Atmospheres,125(22).
MLA	Su D.,et al."Effects of the Largest Lake of the Tibetan Plateau on the Regional Climate".Journal of Geophysical Research: Atmospheres 125.22(2020).