band shift correction between in-situ Rrs

[Theo Awo]

Hi All,

I will really appreciate it if I get some help as a newbie...

I wanted to resample my Landsat visible bands to match in situ bands. I need this to reasonably compare remote sensing reflectance from atmospheric correction methods (for many images) and in situ reference data (from AERONET-OC site). More specifically, bands from AERONET-OC instruments are 441nm, 491nm, 555nm; whereas corresponding bands from Landsat-8 are centred at 443nm, 483, 565... I have been trying the 'spectral resampling tool' in ENVI but looks like I didn't get how my ASCII file (text file containing bands and possibly FWMH) should be arranged, so my output pixel is always zero. The in-situ Rrs data is my reference/validation data.

Any insights on how to do this using any method will be greatly appreciated.