FY-3A MERSI数据干旱监测能力评价

Estimation of Drought Monitoring Ability of FY-3A MERSI Data

摘要: 对FY-3A MERSI数据进行辐射定标、几何定位预处理,与同期MODIS数据预处理结果进行对比;选用温度植被干旱指数法对两种数据进行监测,分析了监测结果的相对精度。实验结果表明,FY-3A MERSI数据的干旱监测结果精度与MODIS数据基本一致,且在空间分辨率及光谱分辨率方面有较大的提高。

Abstract: The FY-3A satellite is an obit meteorological satellite which can provide the globalizational,three-dimensional,multi-spectral remote sensing images.One of the FY-3A missions is monitoring the natural disaster and the change of environment all over the world.We analyze the ability of drought monitoring using the FY-3A MERSI data.First,the art of status of FY-3A satellite is introduced and the potential ability in drought monitoring is discussed.Second,the FY-3A MERSI and MODIS data are preprocessed and analysed.Finally,the relativel precision between the results of FY-3A MERSI and MODIS data are analyzed.The results of experiment indicate that the FY-3A MERSI data can improve the drought monitoring ability in same spatial and spectral resolution aspects.