This test checks whether molecular absorption is correct. The setup is the same as for case B1 but with molecular absorption.

Setup:

• model atmosphere with 30 layers, scattering optical thicknesses provided in tau_rayleigh.dat, absorption optical thickness in tau_molabs.dat
• wavelength: 325 nm
• Rayleigh depolarization factor: 0.03
• output altitudes: 0 km, 15 km, 30 km
• sun position (sza=60°, saa=0°)
• viewing zenith angles:
  • at 0 km : vza: 0° - 85°, 5° increment
  • at 15 km: vza: 0° - 180°, 5° increment (without 90°)
  • at 30 km: vza: 95° - 180°, 5° increment
• viewing azimuth angle vaa: 0° - 180°, 5° increment

Output format:

• The output should be provided in the same format as for case A1 (Rayleigh scattering).