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DOI	10.2166/wcc.2017.134
	Validation of evapotranspiration and its long-term trends in the yellow river source region
	Liu R.; Wen J.; Wang X.; Wang Z.
发表日期	2017
ISSN	20402244
起始页码	495
结束页码	509
卷号	8 期号:3
英文摘要	In this paper, the ground observations were compared to the ERA-Interim, NCEP-DOE AMIP-II Reanalysis, MODIS ET product, and emerging offline SEBS ET data sets in the Yellow River source region of the Tibet Plateau. In general, the slopes of linear least squares exhibit differences, with ERAInterim, NCEP-DOE, MOD16, and SEBS slopes of 0.88± 0.05, 0.64±0.07, 0.66±0.17, and 1.24± 0.97 respectively. ERA-Interim was found superior with ground observations to others; therefore, it provided a good representation of the study area. Based on the ERA-Interim ET product, the Sen’s slope estimator and the Mann-Kendall (MK) test were applied to quantify the significance of the shifts in trends, while the moving t-test and MK test characterized abrupt changes. The results show that the Yellow River source region experienced a statistical increase in evapotranspiration (ET) in the northern part and a decrease in the southern part of the region from 1979 to 2014 at rates of approximately 1.65 and -0.50 mm/yr, respectively. The shift in the annual ET trend was more pronounced, and abrupt changes were detected in the 1980s. Precipitation was the most dominant factor affecting ET variation, whereas surface temperature was the least influential. © IWA Publishing 2017.
英文关键词	Evapotranspiration; Long-term trend; Reanalysis data sets; Yellow River source region
语种	英语
scopus关键词	Bond (masonry); Evapotranspiration; Rivers; Dominant factor; Ground observations; Linear least squares; Long-term trend; Reanalysis; Source region; Surface temperatures; Tibet Plateau; Transport properties; data set; evapotranspiration; precipitation (climatology); surface temperature; temperature effect; trend analysis; China; Qinghai-Xizang Plateau; Yellow River
来源期刊	Journal of Water and Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/148081
作者单位	Key Laboratory of Land Surface Process and Climate Change in Cold and Arid Regions, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, 730000, China; College of Atmospheric Sciences, Plateau Atmosphere and Environment Key Laboratory of Sichuan Province, Chengdu University of Information Technology, Chengdu, Sichuan 610225, China
推荐引用方式 GB/T 7714	Liu R.,Wen J.,Wang X.,et al. Validation of evapotranspiration and its long-term trends in the yellow river source region[J],2017,8(3).
APA	Liu R.,Wen J.,Wang X.,&Wang Z..(2017).Validation of evapotranspiration and its long-term trends in the yellow river source region.Journal of Water and Climate Change,8(3).
MLA	Liu R.,et al."Validation of evapotranspiration and its long-term trends in the yellow river source region".Journal of Water and Climate Change 8.3(2017).