石羊河流域蒸散发遥感反演方法

The Method for Retrieving Evapotranspiration Based on Remote Sensing Data of the Shiyang River Basin

蒸散是水资源管理的一个重要参数。与传统的蒸散计算方法相比,利用遥感进行蒸散研究具有快速、准确、大区域尺度及地图可视化显示等特点。本文通过研究,提出了基于能量平衡方法遥感反演蒸散发的计算模型,指出了模型参数的求解方法,建立了基于MOD IS遥感数据的大区域蒸散发遥感反演技术方法。通过对石羊河流域进行试验,证明该方法具有很强的实用性,并且具有进一步推广的技术前景。

Evapotranspiration （ET） is an important parameter for water resource management. Compared with the traditional ET computation methods, the ET computation method based on Remote Sensing is quick, precise, large - scale and visual. The evapotranspiration estimation model is presented based on energy balance through Remote Sensing. The parameters of the model can be modeled using empirical and semi - empirical formulas. Through a ease study in ShiYang River Valley,it proves that this model has strong practicality. The method provides a precise and efficient way for retrieving evapotranspiration based on remote sensing, and it shows great potential in this field .