TODO

• SNR: where to compute SNR for reflectance?
• where to store values for SNR and reflectance?
• neue Instanz von L1B erstellen oder L1B modifizieren?

TOArad2TOAref

Transforms TOA radiance to TOA reflectance

Input

• L1B data
• Solar irradiance spectrum

Output

• TOAreflectance (L1B overwritten data cubes)
• Log file / Error message?

Memory Budget

• < 2 MB

Necessary Functions

• Sun-earth distance (day, month, year)
• Spectral resampling (spectrum, SRFs, spectral smile)

Process Work Flow

• Calculate sun-earth distance
• Spectral resampling of solar spectrum for each image cokumn using valid SRFs and spectral smile.
• Transformation to TOA reflectance using sun-earth-distance, solar irradiance spectraum and solar zenith angle.

Testing

• Input L1B:
• Reference: