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title: Decadal changes of reference crop evapotranspiration attribution: Spatial and temporal variability over China 1960-2011
author: Fan, Ze-Xin;  Thomas, Axel
Issued Date: 2018
Keyword: Climate change;  Temporal and spatial variability of attribution;  FAO-Penman-Monteith reference crop evapotranspiration;  China
Abstract: Atmospheric 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
Related URLs: 10.1016/j.jhydrol.2018.02.080
Content Type: 期刊论文
ISSN: 0022-1694
Language: 英语
Appears in Collections:2012年后新成立研究组_期刊论文

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Recommended Citation:
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.

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