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DOI	10.1088/1748-9326/abf687
	Analysis of variation in reference evapotranspiration and its driving factors in mainland China from 1960 to 2016
	Wu, Dong; Fang, Shibo; Tong, Xingyuan; Wang, Lei; Zhuo, Wen; Pei, Zhifang; Wu, Yingjie; Zhang, Ju; Li, Mengqian
通讯作者	Fang, SB (corresponding author), Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing 100081, Peoples R China. ; Fang, SB (corresponding author), Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Nanjing 210044, Peoples R China.
来源期刊	ENVIRONMENTAL RESEARCH LETTERS
ISSN	1748-9326
出版年	2021
卷号	16 期号:5
英文摘要	Understanding the variation in reference evapotranspiration (ETo) is vital for hydrological cycles, drought monitoring, and water resource management. With 1507 meteorological stations and 130 radiation-measured stations, the annual and seasonal ETo were calculated at each site from 1960 to 2016 in mainland China. The phenomenon of coefficient 'a' being less than 0.25 and coefficient 'b' being greater than 0.50 in the Angstrom-Prescott model occurred in almost the whole country, except for a small area of western and northeastern China. Moreover, the Xiao's method was more applicable to calculate the net longwave radiation (R (nl)) and then improve the estimation accuracy of ETo. The annual ETo varied from 538.8 to 1559.8 mm and had a high-value center located in the plateau and desert of northwestern China and a low-value center located in Northeast China and near the Sichuan Basin. The spatial distribution of seasonal ETo was roughly similar to that of annual ETo, except for that in winter when ETo was high in the south and low in the north. In mainland China, the annual ETo decreased by 21.2 mm decade(-1) because of the declining sunshine duration before 1993 and increased by 21.1 mm decade(-1) due to the decreased relative humidity (RH) after 1993. Generally, the abrupt change of ETo mainly occurred in the southern China rather than northern China (except for Qinghai Tibet Plateau). Basically, the dominant driving factors of annual and seasonal ETo were RH and/or T (max) after the abrupt change in most parts of China.
英文关键词	reference evapotranspiration spatiotemporal variation abrupt change driving factor mainland China
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000642501500001
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
来源机构	南京信息工程大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350152
作者单位	[Wu, Dong; Fang, Shibo; Wang, Lei; Zhuo, Wen; Wu, Yingjie; Li, Mengqian] Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing 100081, Peoples R China; [Wu, Dong; Fang, Shibo] Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Nanjing 210044, Peoples R China; [Tong, Xingyuan] Nanjing Univ Informat Sci & Technol, Nanjing 210044, Peoples R China; [Pei, Zhifang; Zhang, Ju] Chengdu Univ Technol, Chengdu 610000, Peoples R China
推荐引用方式 GB/T 7714	Wu, Dong,Fang, Shibo,Tong, Xingyuan,et al. Analysis of variation in reference evapotranspiration and its driving factors in mainland China from 1960 to 2016[J]. 南京信息工程大学,2021,16(5).
APA	Wu, Dong.,Fang, Shibo.,Tong, Xingyuan.,Wang, Lei.,Zhuo, Wen.,...&Li, Mengqian.(2021).Analysis of variation in reference evapotranspiration and its driving factors in mainland China from 1960 to 2016.ENVIRONMENTAL RESEARCH LETTERS,16(5).
MLA	Wu, Dong,et al."Analysis of variation in reference evapotranspiration and its driving factors in mainland China from 1960 to 2016".ENVIRONMENTAL RESEARCH LETTERS 16.5(2021).