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陆面蒸散的双源遥感模型及其在华北平原的应用
引用本文:沈彦俊,夏军,张永强,肖捷颖,唐常源,近藤昭彦.陆面蒸散的双源遥感模型及其在华北平原的应用[J].水科学进展,2006,17(3):371-375.
作者姓名:沈彦俊  夏军  张永强  肖捷颖  唐常源  近藤昭彦
作者单位:1.东京大学生产技术研究所, 日本, 东京, 153-8505;
基金项目:国家自然科学基金;中国科学院知识创新工程项目
摘    要:建立了一个计算陆面蒸散的双源遥感模型,利用多光谱和热红外遥感数据估算地表土壤缺水状况,并计算蒸散通量。本模型利用2000-2002年的13期Landsat TM和ETM+遥感数据计算了栾城地区1 000 km2范围的蒸散通量。通过与地面同步微气象观测值的对比,显示利用笔者建立的双源蒸散模型和简化的植被指数-地表温度梯形法确定土壤水分状况,在华北平原能够获得比较满意的计算结果。

关 键 词:遥感模型    土壤水分亏缺指数    陆面蒸散    TM    华北平原
文章编号:1001-6791(2006)03-0371-05
收稿时间:2004-11-18
修稿时间:2005-01-17

Dual-source remote sensing model for estimating land surface evapotranspiration and its application in North China Plain
SHEN Yan-jun,XIA Jun,ZHANG Yong-qiang,XIAO Jie-ying,TANG Chang-yuan,KONDOH Akihiko.Dual-source remote sensing model for estimating land surface evapotranspiration and its application in North China Plain[J].Advances in Water Science,2006,17(3):371-375.
Authors:SHEN Yan-jun  XIA Jun  ZHANG Yong-qiang  XIAO Jie-ying  TANG Chang-yuan  KONDOH Akihiko
Institution:1.Institute of Industrial Science, the University of Tokyo, Tokyo 153-8505, Japan;2.Institute of Geographical Science and Natural Resources, CAS, Beijing 100101, China;3.Graduate School of Science and Technology, Chiba University, Chiba 263-8522, Japan
Abstract:Based on the theory of linear dualsource evapotranspiration(ET) model,this paper develops a remote sensing model for estimating the land surface ET.The remote sensing model has two characteristics: to(1) simplify the VITT method and improve the accuracy of determining soil water status in a semiarid irrigation area,and(2) introduc the dual-source model in calculating land surface ET and improve the calculation accuracy of the mixed pixels.The remote sensing model is applied for calculating the land surface ET about a 1*#000 km~2 in North China Plain by using 13 Landsat TM and ETM images during the period 2000-2002.It is illustrated that the remote sensing model based on dual-source linear concept can get good estimates when applied in semiarid irrigated area.
Keywords:TM
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