南水北调与水利科技2017，Vol.15Issue(5)：50-55,6.DOI:10.13476/j.cnki.nsbdqk.2017.05.008
大汶河流域陆面蒸发估算方法比较
Comparative study on the methods of estimating land surface evaporation in Dawenhe River basin
摘要
Abstract
The estimation of regional land surface evapotranspiration is of great significance to calculating the total amount of regional water resources and to allocating water resources reasonably.According to the characteristics of the sub-basins controlled by Xueye reservoir,Huangqian reservoir,and Dongzhou reservoir in Dawenhe River basin,we respectively used MODIS remote sensing method,SWAT model,and conversion coefficient of water surface evaporation to estimate the average yearly and monthly land surface evaporation of the three sub-basins from 2000 to 2008.Based on the rainfall and natural runoff data of each sub-basin over the same period,we analyzed and compared the estimated results.The results showed that:in Dawenhe River basin,the accuracy of the MODIS remote sensing method was low;the conversion coefficient method had a certain precision;the SWAT model method had higher calculation precision and better adaptability,and its estimation error was only about 3%.The results can provide references for selecting methods of estimating the land surface evaporation in the semi-humid region.关键词
陆面蒸发/大汶河流域/MODIS遥感方法/SWAT模型/折算系数法Key words
land surface evaporation/Dawenhe River basin/MODIS remote sensing method/SWAT model/conversion coefficient method分类
建筑与水利引用本文复制引用
杨敏芝,钟平安,汪曼琳,尚艳丽,程传民..大汶河流域陆面蒸发估算方法比较[J].南水北调与水利科技,2017,15(5):50-55,6.基金项目
国家自然科学基金(51579068 （）
51379055)National Natural Science Foundation of China(51579068 （）
51379055) （）
