As people's recognition go deep into the object world constantly, they find it is necessary to broaden the study scale to regional and even global extent. The Earth Observation System (EOS) system was put forward under such a background. So far, there are more than 20 satellites operating in their obits, which take many sensors with different temporal resolution, spatial resolution and spectral resolution, and the data generated from the sensors have made a great contribution to the study of atmosphere, oce...