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Last Post 30 May 2016 09:38 AM by  anon
AST_L1T radiance to reflectance
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anon



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30 May 2016 09:38 AM
    Hello! I have an AST_L1T image and i need to create a reflectance image, a read that ENVI make auto-correctfor ASTER Radiance, so can i use this AST_L1T to create a reflectance image using FLAASH directly? but firts, i need to convert the file using BasicTools -> Convert Data (BSQ, BIL, BIP)?. Thank you

    MariM



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    31 May 2016 01:05 PM
    If you are using ENVI 5.3, you can open the dataset using File->Open As->Optical Sensors->EOS->ASTER. This will extract the metadata from the HDF file so that it can be calibrated to radiance or TOA reflectance using the Radiometric Calibration tool. This tool also has an option to apply 'FLAASH Settings' which will convert the interleave and apply a scaling factor making the dataset ready for FLAASH.
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