Methods of MODIS level 1B Data Processing

The Moderate-resolution Imaging Spectroradiometer (MODIS) is an earth-imaging instrument now onboard both the Terra and Aqua polar-orbiting satellites. MODIS has 36 spectral bands, covering the spectral range from 412 nm to 14 200 nm, and provides spatial images with 0.25 km (two bands), 0.5 km (five bands) and 1 km (29 bands) resolutions at nadir. These three application products are obtained mainly through the processing on level IB product for global studies of the Earth´s land, oceans and atmosphere. This paper provides a brief description of the MODIS characteristics and MODIS IB saved file format-HDF, and describes an approach for extracting the data for the purpose of high level product. The Vegetation Indices Product´s generation methods were derived as the example at the end.