气候变化领域集成服务门户(CCPortal): Spatiotemporal Variations of Water Vapor Content and Its Relationship with Meteorological Elements in the Third Pole

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DOI	10.3390/w13131856
	Spatiotemporal Variations of Water Vapor Content and Its Relationship with Meteorological Elements in the Third Pole
	Wang, Zhilan; Sun, Meiping; Yao, Xiaojun; Zhang, Lei; Zhang, Hao
通讯作者	Sun, MP (通讯作者)，Northwest Normal Univ, Dept Geog & Environm Sci, Lanzhou 730070, Peoples R China. ; Sun, MP (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China.
发表日期	2021
EISSN	2073-4441
卷号	13 期号:13
英文摘要	Water vapor content plays an important role in climate change and the ecosystem in the Tibetan Plateau (TP) through its complicated interaction with the meteorological elements. However, due to the complex topography of the Tibetan Plateau, it is unreliable to attempt to understand the variation pattern of water vapor content using only observational data. Satellite and reanalysis data can be a good substitute for observational data, but their accuracy still needs to be evaluated. Therefore, based on radiosonde stations data, comprehensive assessment of water vapor content on the TP and surrounding areas derived from ERA-5, Second Modern-Era Retrospective analysis for Research and Applications (MERRA2), Atmospheric Infrared Sounder (AIRS)-only, and weighted ensemble data was performed in the context of spatial and temporal distribution at the annual and seasonal scale. Based on precipitation from Gauge V3.0 and Tropical Rainfall Measuring Mission satellite (TRMM) and temperature from ERA-5, the relationship between water vapor content and temperature and precipitation was analyzed. The results show that water vapor content decreases from southeast to northwest, and ERA-5, MERRA2, and AIRS-only can reasonably reproduce the spatial distribution of annual and seasonal water vapor content, with ERA-5 being more reliable in reproducing the spatial distribution. Over the past 50 years, the water vapor content has shown a gradual increasing trend. The variation trends of AIRS-only, MERRA2, ERA-5, and weighted ensemble data are almost consistent with the radiosonde stations data, with MERRA2 being more reliable in capturing water vapor content over time. Weighted ensemble data is more capable of capturing water vapor content characteristics than simple unweighted products. The empirical orthogonal function (EOF) analysis shows that the first spatial mode values of water vapor content and temperature are positive over the TP, while the values of precipitation present a negative-positive-negative distribution from south to north over the TP. In the second spatial mode of EOF analysis, the values of water vapor content, air temperature, and precipitation are all negative. The first temporal modes of EOF analysis, water vapor content, air temperature, and precipitation all show an increasing trend. In conclusion, there is a clear relationship of water vapor content with temperature and precipitation.
关键词	TIBETAN FEEDBACK
英文关键词	Tibetan Plateau and surrounding areas; water vapor content; precipitation; temperature
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
WOS类目	Environmental Sciences ; Water Resources
WOS记录号	WOS:000671022300001
来源期刊	WATER
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/253889
作者单位	[Wang, Zhilan; Sun, Meiping; Yao, Xiaojun; Zhang, Lei; Zhang, Hao] Northwest Normal Univ, Dept Geog & Environm Sci, Lanzhou 730070, Peoples R China; [Sun, Meiping] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Wang, Zhilan,Sun, Meiping,Yao, Xiaojun,et al. Spatiotemporal Variations of Water Vapor Content and Its Relationship with Meteorological Elements in the Third Pole[J]. 中国科学院西北生态环境资源研究院,2021,13(13).
APA	Wang, Zhilan,Sun, Meiping,Yao, Xiaojun,Zhang, Lei,&Zhang, Hao.(2021).Spatiotemporal Variations of Water Vapor Content and Its Relationship with Meteorological Elements in the Third Pole.WATER,13(13).
MLA	Wang, Zhilan,et al."Spatiotemporal Variations of Water Vapor Content and Its Relationship with Meteorological Elements in the Third Pole".WATER 13.13(2021).