This case includes the same setup as case D1 but with smaller optical thickness and a Lambertian surface below the Rayleigh scattering layer.

Setup:

• optical thickness of layer: 0.1
• surface albdeo: 0.3
• Rayleigh depolarization factor: 0.03
• no molecular absorption
• Earth radius: 6371 km
• Thickness of layer: 120 km

• Sun-observer geometries as defined in general settings:
  • viewing zenith angles (deg): [0, 9, 18, 26, 34, 41, 48, 54, 60, 65, 70, 74, 78, 81, 84, 86, 88, 89, 90] (up-looking at bottom of atmosphere, down-looking at top of atmosphere]
  • viewing azimuth angles (deg): 0-180, 10° increment
  • solar zenith angles (deg): [30, 60, 80, 87, 90, 93, 96, 99]
  • solar azimuth angle (deg): 0
  • sensor altitude (km): 0, 120