环境减灾-1A、1B卫星在干旱监测中的应用研究及实现

Application Research and Implementation of Drought Monitoring by HJ-1A/1B Satellites

"环境与灾害监测预报小卫星星座"(以下简称环境减灾星座)是我国首个以防灾减灾和环境监测为应用目的的小卫星星座,应用环境减灾星座构建干旱遥感监测体系具有重要的现实意义。文章基于HJ-1A、1B卫星遥感器数据,分析其适用的干旱遥感监测模型,并在此基础上选择辽宁省阜新市作为研究区,实现了基于HJ-1B卫星宽覆盖多光谱CCD相机数据的垂直干旱指数监测模型。结果表明,利用环境减灾星座数据可以有效地实现干旱遥感监测。

By using the HJ-1A/1B satellites sensor data, this paper analyzes the advantages and disadvantages of some drought monitoring models for implementation. On this basis, we selected Fuxin City, Liaoning Province, as a study area, and realized the Perpendicular Drought Index （PDI） with HJ-1B CCD data. The results show that the HJ-1A/1B satellites data can be effec- tively used in drought remote sensing monitoring application.