Title: Values of the Coefficient of ngstrm-Prescott in ET_0 Calculation
Abstract: Based on the data from 103 meteorological stations in Urumqi,Yinchuan and so on of 55 years,this paper studied the influence of the coefficient of ngstrm-Prescot and coefficient valued in different time scales and its results error on evapotranspiration,and compared it with the results estimated by the recommended value of FAO.The results indicate that local yearly averaged value can be used to estimate the reference evapotranspiration,compared with the results estimated by the recommended value of FAO,the maximum yearly relative error of radiation and reference evapotranspiration is 11% and 13% respectively,which means that the relative error of radiation and reference evapotranspiration is disproportion with the ngstrm-Prescott value.
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
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