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pytroll / pyspectral

Pyspectral is a package to read and manipulate satellite sensor spectral responses and solar irradiance spectra
https://pyspectral.readthedocs.org/
GNU General Public License v3.0
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On the application of spectral response function #147

Open parrot19 opened 2 years ago

parrot19 commented 2 years ago

I'm wondering whether someone has used this library for transferring the Sentinel-2 observation data (spectral reflectance) into the domain of MODIS by applying spectral response function of MODIS ? Is not it doable ?

adybbroe commented 2 years ago

I am not aware of any such usage. But, we have the RSR data of both, so I suppose that is a good start. The two instruments have rather different footprint sizes, and there will be a lot of 3d effects in presence of clouds with MSI, so I suppose it is quite a challenge to what you suggest? Do you have some references to what you are after?

parrot19 commented 2 years ago

I think the whole idea is just to transfer spectral response without consideration of observation conditions. It has been discussed here, https://github.com/pmlrsg/PySpectra/commit/beb7089ac47bd0303ebcad7e754a2e693e74e0c5