气候变化领域集成服务门户(CCPortal): Observational evidence of the combined influence of atmospheric circulations and local factors on near-surface meteorology in Dagze Co basin, inner Tibetan Plateau

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DOI	10.1002/joc.5316
	Observational evidence of the combined influence of atmospheric circulations and local factors on near-surface meteorology in Dagze Co basin, inner Tibetan Plateau
	Yang, Wei; Guo, Xiaofeng; Wang, Yongjie
通讯作者	Yang, W (通讯作者)
发表日期	2018
ISSN	0899-8418
EISSN	1097-0088
起始页码	2056
结束页码	2066
卷号	38 期号:4
英文摘要	Based on meteorological observations of three automatic weather stations (AWSs), spanning an altitudinal range of 1400 m from 4480 to 5880 m above sea level (m a.s.l.) during August 2015 to August 2016, this study presents a description of the spatio-temporal characteristics of the near-surface meteorology of the Dagze Co (lake) basin in the interior of the Tibetan Plateau. We also investigated the influence of synoptic atmospheric systems and local factors on the meteorological characteristics. We found that the onset and withdrawal of the South Asian summer monsoon triggered seasonal shift in meteorological variables including wind direction, precipitation, and relative humidity. In addition, the magnitude of various meteorological factors during the monsoonal period is clearly associated with the intensity of the South Asian summer monsoon, which subsequently controls the lake water budget of Dagze Co. Moreover, both the local topography and the existence of the lake contribute significantly to the altitudinal variation of several meteorological factors. For example, the orographic precipitation near the glaciated area at 5880 m a.s.l. was about three times greater than in the area adjacent to the lake. The dominating katabatic wind over these glaciated areas weakens the up-valley wind and consequently wind speed tends to decrease with increasing elevation during the monsoonal season. In addition, different levels of cloudiness between the low-altitude lake and the glaciated mountain area contribute to a 40-50% reduction in incoming short-wave radiation receipt. Our observations will hopefully contribute to future glacio-hydrological studies and will help to evaluate statistically/dynamically downscaled climate fields in the interior of Tibetan Plateau which contains numerous lakes and glaciers.
关键词	ENERGY-BALANCE CLIMATE-CHANGE AIR-TEMPERATURE MASS-BALANCE HIGH ASIA GLACIER PRECIPITATION DYNAMICS LAKES VARIABILITY
英文关键词	lake; meteorology; monsoon; Dagze Co; Tibetan Plateau
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000427011700033
来源期刊	INTERNATIONAL JOURNAL OF CLIMATOLOGY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259115
推荐引用方式 GB/T 7714	Yang, Wei,Guo, Xiaofeng,Wang, Yongjie. Observational evidence of the combined influence of atmospheric circulations and local factors on near-surface meteorology in Dagze Co basin, inner Tibetan Plateau[J]. 中国科学院青藏高原研究所,2018,38(4).
APA	Yang, Wei,Guo, Xiaofeng,&Wang, Yongjie.(2018).Observational evidence of the combined influence of atmospheric circulations and local factors on near-surface meteorology in Dagze Co basin, inner Tibetan Plateau.INTERNATIONAL JOURNAL OF CLIMATOLOGY,38(4).
MLA	Yang, Wei,et al."Observational evidence of the combined influence of atmospheric circulations and local factors on near-surface meteorology in Dagze Co basin, inner Tibetan Plateau".INTERNATIONAL JOURNAL OF CLIMATOLOGY 38.4(2018).