摘要
蒸散发是极其重要的水循环要素过程,影响着地表降水和辐射能的重新分配。遥感作为一种高效的空间信息获取和处理技术,把蒸散发的研究带到了一个新的局面。综述了遥感监测蒸散发的现状,介绍了遥感研究蒸散发的理论基础及常用的几种模型,指出了存在的问题并对未来发展进行了预测。
Evapotranspiration is a very important course in water cycle; it has an influence on the redistribution of precipitation and radiant energy. As an efficient technique in catching and dealing with space information, remote sensing has brought ET research to a new phase. This paper summaries the status quo of evapotranspiration calculation using remote sensing technology, introduces the theory basis and several models which are in common use, put forwards the existing problems and forecast the future development.
出处
《水利科技与经济》
2009年第5期412-413,416,共3页
Water Conservancy Science and Technology and Economy
基金
灌区诊断评价技术与方法及节水改造标准体系研究(2006BAD11B01)
关键词
蒸散发
遥感
能量平衡方程
遥感蒸散模型
evapotranspiration
remote sensing
energy balance equation
remote sensing ET model
