遥感蒸散估算研究进展

阐述了蒸散遥感估算的基本原理与方法,按不同的作用机理将主要的蒸散遥感估算方法分为基于地表与空气温度温差的经验方法、地表能量平衡模型、基于遥感数据源的Penman模型、基于植被指数和温度综合模型、互补相关模型以及遥感数据与陆面模型同化方法,并对各种方法的优缺点和适用性进行了分析,最后,对遥感蒸散估算面临的困难及发展方向进行了展望。

Advances in Estimating of the Evapotranspiration based on Remote Sensing Method

Remote sensing method is considered as the best method to estimating the land surface evapotranspiration current- ly, This article introduced the basic principle and method of the method, According the different mechanism, it mainly included method based on the land surface and air temperature difference, land surface energy balance model, the Penman model based on remote sensing data, method based on vegetation index and temperature integrated model, complementary relationship model, method based on assimilation of remote sensing data and land surface data, and this article discussed their advantage and disadvantage, at the same time, it forecasted the development trend and the difficulties of remote sensing method.