Computation of TOA solar reflected radiances

Lower wavelength (μm)
(> 0.25 μm)
Upper wavelength (μm)
(< 4 μm)
Solar zenith angle (degrees)  
Satellite viewing angle
(between 0 degrees = nadir and 90)
Surface albedo  

  Water cloud
Altitude of a cloud layer (km)
Optical depth ( at 0.55 μm)
of a cloud layer
Effective radius
(between 2 μm and 125 μm)