基于统计的MODIS地表反射率简单估算方法

A simple statistical algorithm for the estimation of MODIS spectral reflectance

利用NASA-ESE提供的大气校正算法对EOS／MODIS进行计算,得到CH1-7的地面反射率,再与MODIS所接收到的大气上界反射率数据进行比较,参考野外实测得到的大气光学特性和地面反射率数据,提出一种基于统计方法的MODIS前7个通道的大气校正方法。

By applying the proposed algorithms and associated processing code, MODIS radiance of channel 1 to 7 are corrected for atmospheric effects to generate the surface reflectance product. A simple statistical algorithm for the estimation of MODIS spectral reflectance is developed based on the statistics of MODIS surface reflectance and the radiance at the top of atmosphere. The algorithm is validated by comparing with ground-based measurements. The suitability and limitation of the proposed method are discussed.