Table 2.
SCIATRAN Simulation conditions for detection study.
| Sensor | Surface/atmosphere | Notes |
|---|---|---|
| Solar zenith: 30° | Background conditions | |
| Altitude: 666 km | Reflectance: 0.1, 0.3–0.6 | |
| H2O: As SCIATRAN CTM (November, latitude 45°) | ||
| CH4: As SCIATRAN CTM (November, latitude 45°) | ||
| Aerosols: As LOWTRAN SCIATRAN standard settings | Maritime/tropospheric in the boundary layer. Background in the stratosphere | |
| Elevated conditions | ||
| Reflectance: 0.1, 0.3, 0.6 | Vegetation to desert | |
| H2O: As background ×2 | Not necessarily realistic, but indicates sensitivity to water vapour | |
| CH4 scale factor: 1.02, 1.04, 1.06, 1.08, 1.10 | XCH4 values, minimum 1.78 ppm, maximum 1.94 ppm |