Dear all, I am trying to use i.atcorr in GRASS GIS 7 with AVNIR-2 data in Japan, it works well for band 1,4 but returns all NULL values for band 2,3. Maybe the problem is because of Sensor band parameter (the last one in 6S parameters, the values are 81, 82. 83, 84 respectively band 1, 2, 3, 4): For all 4 bands, I change the parameter from 81 to 84, it returns all NULL values when the parameter is 82 or 83; real/integer values when the parameter is 81 or 84. Below is list of 6S parameters for band 2:
11 # geometrical conditions = avnir 2 15 3.00 135.657 34.282 # month day hh.ddd long lat 1 # atmospheric mode = tropical 1 # aerosols model = continental 11 # visibility (km) -0.300 # mean target elevation above sea level = 300 m -1000 # sensor height = on board 82 # 2th band of avnir Could anybody help me to solve this problem? Thank you very much. Yours sincerely, Hang --- --- --- --- Do Thi Hang (MSc candidate) GIS Laboratory Graduate school for Creative Cities Osaka City University Tel. +81-90-8385-6238
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