基于遥感的干旱监测方法研究进展

Research Progress of Drought Monitoring Methods Based on Remote Sensing

在全球变暖的气候背景下,近年来干旱频发且不断加剧,给人类的生产生活造成了严重的影响。本文基于遥感原理,介绍了归一化植被指数、温度状态指数、标准化降雨指数和标准化降雨蒸散指数等几种常见的干旱指数,综述了运用不同干旱指数进行监测的实践应用。最后,针对目前研究中存在的问题,对今后研究的主要方向作出了展望。

Under the background of global warming,drought frequently occurs and intensifies in recent years,which has a serious impact on human production and life.Based on the principle of remote sensing,this paper introduced several common drought indexes such as normalized vegetation index,temperature condition index,standardized precipitation index and standardized precipitation evapotranspiration index,and summarized the practical application of different drought indexes in monitoring.Finally,in view of the existing problems in the current research,the main research directions in the future were prospected.