卫星遥感监测蒸腾蒸发量(ET)精度校验--以北京市GEF海河项目为例  

Precision check on remote sensing monitored evapotranspiration(ET): case from Beijing GEF Haihe River Project

作　　者：李黔湘[1] 王华斌[2] 白忠[1] 张文哲[1] 杜文成[1] 

机构地区：[1]北京市水利水电技术中心,北京100073 [2]中国测绘科学研究院,北京100039

出　　处：《水利水电技术》2008年第7期1-3,共3页Water Resources and Hydropower Engineering

基　　金：全球环境基金(GEF)资助项目(TE053183)

摘　　要：概述了GEF海河项目利用卫星遥感技术监测流域蒸腾蒸发量(ET)进行流域水管理的思路,介绍传统人工监测和卫星遥感监测ET的原理和方法。对2种监测结果进行分析比较,得出的结论是:北京市GEF海河项目中大部分区(县)卫星遥感监测系统精度为±5%以内,各年有1个区(县)精度不达标,待用其它方法继续校验。The idea of the water management within river basin with the remote sensing monitored evapotranspiration（ET） in the GEF Haihe River Project is summarized herein, in which the principles and methods of both the manual monitoring and the satellite remote sensing monitoring are introduced and then both the monitoring results are compared. It concludes that the preeisions of the remote sensing monitoring systems covering most of the districts and counties included in Beijing GEF Haihe River Project are within ±5%, however, only one district or county do not meet the requirement each year, that is to be checked in other ways.

关 键 词：卫星遥感监测 蒸腾蒸发量(ET) 精度校验 北京GEF海河项目 

分 类 号：TV123[水利工程—水文学及水资源]