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Last Post 20 Mar 2012 10:37 PM by  anon
FLAASH module and wavelengths and FWHM values
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anon



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20 Mar 2012 10:37 PM
    Hi, I need your help concerning FLAASH module utilisation. I am trying to use the FLAASH module (ENVI 4.5, on windows) to make atmospheric correction on LANDSAT 5 TM image. I download this image from GLOVIS website, my image has a Level 1T and a geotiff format. When I input Radiance image, ENVI software prompt "Enter ASCII file name containing wavelengths and FWHM". I read ENVI help and I understand why this window appear but I don't know how to get the wavelengths and FWHM values. Thank you for your help.

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    20 Mar 2012 11:57 PM
    I finally found the solution, so i post it, in case of someone else encounter the same problem. The wavelength need to FLAASH input image is just the center of the acquisition band. For exemple : For LANDSAT 5 band 1 is 450-520nm, so the wavelenght is 485nm.
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