单星多角度法同时反演气溶胶光学厚度和地表反射率

Simultaneous retrieval of aerosol optical depth and surface reflectance using single-satellite multi-angle method

尝试以单星多角度卫星观测数据同时反演晴空陆地的气溶胶光学厚度和地表反射率,并选取2009年5月的MODIS(Moderate Resolution Imaging Spectroradiometer)1B资料进行了反演试验.结果表明:单星多角度法反演得到的气溶胶光学厚度结果与MODIS气溶胶产品(MOD04)平均值的相关系数为0.7914;反演的地表反射率结果与MODIS地表反射率产品(MOD09)也具有较好的一致性.对直接利用单星多角度观测数据反演获得一段时间内平均的气溶胶光学厚度进行了有益的尝试.

This paper attempts to retrieve aerosol and surface optical properties simultaneously from muhi-angle data observed by single satellite. A case study was conducted using the MODIS （ Moderate Resolution Imaging Spectroradiometer） 1B data of May 2009. The resulting aerosol optical depth was consistent with that of the aerosol product （MOD04） ,the correlation coefficient is 0. 791 4. The comparison of the resulting land surface reflectance with that of the surface reflectance product （MOD09） also produced good consistency. The algorithm made a good attempt to retrieve the average of aerosol optical depth using single-satellite multi-anle observations data.