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	Evaluation of near-surface wind speed simulations over the Tibetan Plateau from three dynamical downscalings based on WRF model
	Li, Xia1,2; Gao, Yanhong1; Pan, Yongjie1; Xu, Yu1,2
刊名	THEORETICAL AND APPLIED CLIMATOLOGY
	2018-11-01
卷号	134期号:3-4页码:1399-1411
ISSN号	0177-798X
DOI	10.1007/s00704-017-2353-9
通讯作者	Gao, Yanhong(gaoyh@lzb.ac.cn)
英文摘要	The Tibetan Plateau (TP) has experienced significant climate changes in recent decades. Wind stilling is one of the most evident changes based on observations. This study assesses near-surface wind speed simulations from three WRF dynamical downscalings over the TP. The assessment is conducted by comparing with observations at 83 stations over the TP and ERA-Interim in 1980-2005. Results show that the three dynamical downscalings and ERA-Interim all overestimated the annual and seasonal wind speeds over the TP, especially in winter. Overestimation of the U component is the main contributor to the overestimation of near-surface wind speeds. The difference between grid and station elevations partly contributes to the larger overestimation, particularly in 3000-4000m. Impacts of the land surface scheme on the simulations of wind speed are also noticed. Observations show significant decreasing wind speed trend and the variability is larger at higher elevations above 4000m, which are not represented in the ERA-Interim. Affected by forcing, the dynamical downscalings do not capture the observed significantly decreasing trend, but they outperform the forcing in winter. The better performance in winter but summer is mainly because the dynamical downscalings are unable to reproduce the observed direction of the U component in summer. The ability of dynamical downscalings to simulate the near-surface wind speed may be improved by choosing forcing with better linear trends, enhancing the momentum transports in the planetary boundary parameterization scheme, and considering the unresolved topographic features sufficiently.
收录类别	SCI
WOS关键词	REGIONAL CLIMATE MODEL ; ATMOSPHERIC HEAT-SOURCE ; COMPLEX TERRAIN ; REFERENCE EVAPOTRANSPIRATION ; WEAKENING TREND ; RECENT DECADES ; UNITED-STATES ; ERA-INTERIM ; EAST-ASIA ; CHINA
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
语种	英语
出版者	SPRINGER WIEN
WOS记录号	WOS:000448861400045
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2558270
专题	寒区旱区环境与工程研究所
通讯作者	Gao, Yanhong
作者单位	1.Chinese Acad Sci, Key Lab Land Surface Proc & Climate Change Cold &, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, Xia,Gao, Yanhong,Pan, Yongjie,et al. Evaluation of near-surface wind speed simulations over the Tibetan Plateau from three dynamical downscalings based on WRF model[J]. THEORETICAL AND APPLIED CLIMATOLOGY,2018,134(3-4):1399-1411.
APA	Li, Xia,Gao, Yanhong,Pan, Yongjie,&Xu, Yu.(2018).Evaluation of near-surface wind speed simulations over the Tibetan Plateau from three dynamical downscalings based on WRF model.THEORETICAL AND APPLIED CLIMATOLOGY,134(3-4),1399-1411.
MLA	Li, Xia,et al."Evaluation of near-surface wind speed simulations over the Tibetan Plateau from three dynamical downscalings based on WRF model".THEORETICAL AND APPLIED CLIMATOLOGY 134.3-4(2018):1399-1411.

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