Title: Atmospheric correction on CCD data of HJ-1 satellite and analysis of its effect
Abstract:The radioactive transfer process in the surface-atmosphere-remote sensor can be simulated by the atmospheric radioactive transfer model MODTRAN 4, thus the top of the atmosphere (TOA) radiance with th...The radioactive transfer process in the surface-atmosphere-remote sensor can be simulated by the atmospheric radioactive transfer model MODTRAN 4, thus the top of the atmosphere (TOA) radiance with the corresponding atmospheric parameters can be acquired. Based on the look-up table (LUT) which is generated by simulation, the surface reflectance from CCD data of HJ-1 satellite can be retrieved. Then, the effect of atmospheric correction on CCD data of HJ-1 satellite is analyzed in terms of the spectral curves, comparison with MODIS surface reflectance products, and the normalized difference vegetation index(NDVI). The results show: (1) Atmospheric correction on CCD data of HJ-1 satellite can eliminate the increase effect of the atmosphere. (2) The refl ectance of vegetation and settlement place from atmospheric corrected CCD data of HJ-1 satellite is well consistent with those from MODIS surface reflectance data products, with less than 20% in error between these two surface features for the four bands of CCD data of HJ-1 satellite. (3) The difference of NDVI between vegetation and other objects after atmospheric correction has been increased, which indicates the atmospheric correction can highlight the vegetation information.Read More
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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Cited By Count: 5
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