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Decadal changes of reference crop evapotranspiration attribution: Spatial and temporal variability over China 1960-2011
Fan, Ze-Xin; Thomas, Axel
2018
Source PublicationJOURNAL OF HYDROLOGY
ISSN0022-1694
Volume560Issue:xPages:461-470
AbstractAtmospheric evaporative demand can be used as a measure of the hydrological cycle and the global energy balance. Its long-term variation and the role of driving climatic factors have received increasingly attention in climate change studies. FAO-Penman-Monteith reference crop evapotranspiration rates were estimated for 644 meteorological stations over China for the period 1960-2011 to analyze spatial and temporal attribution variability. Attribution of climatic variables to reference crop evapotranspiration rates was not stable over the study period. While for all of China the contribution of sunshine duration remained relatively stable, the importance of relative humidity increased considerably during the last two decades, particularly in winter. Spatially distributed attribution analysis shows that the position of the center of maximum contribution of sunshine duration has shifted from Southeast to Northeast China while in West China the contribution of wind speed has decreased dramatically. In contrast relative humidity has become an important factor in most parts of China. Changes in the Asian Monsoon circulation may be responsible for altered patterns of cloudiness and a general decrease of wind speeds over China. The continuously low importance of temperature confirms that global warming does not necessarily lead to rising atmospheric evaporative demand. (C) 2018 Elsevier B.V. All rights reserved.
Department其他
KeywordClimate Change Temporal And Spatial Variability Of Attribution Fao-penman-monteith Reference Crop Evapotranspiration China
Language英语
Document Type期刊论文
Identifierhttp://ir.xtbg.org.cn/handle/353005/10873
Collection2012年后新成立研究组
Corresponding AuthorFan, Ze-Xin
Recommended Citation
GB/T 7714
Fan, Ze-Xin,Thomas, Axel. Decadal changes of reference crop evapotranspiration attribution: Spatial and temporal variability over China 1960-2011[J]. JOURNAL OF HYDROLOGY,2018,560(x):461-470.
APA Fan, Ze-Xin,&Thomas, Axel.(2018).Decadal changes of reference crop evapotranspiration attribution: Spatial and temporal variability over China 1960-2011.JOURNAL OF HYDROLOGY,560(x),461-470.
MLA Fan, Ze-Xin,et al."Decadal changes of reference crop evapotranspiration attribution: Spatial and temporal variability over China 1960-2011".JOURNAL OF HYDROLOGY 560.x(2018):461-470.
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