Aerosol column burden* | 5 - marginal | Cloud sensitive.. Daylight only. | VIS (with narrow bandwidth) and NIR channels |
Aerosol effective radius | 5 - marginal | Cloud sensitive.. Daylight only. | VIS (with narrow bandwidth) and NIR channels |
Aerosol mass mixing ratio* | 5 - marginal | Cloud sensitive.. Daylight only. | VIS (with narrow bandwidth) and NIR channels |
Aerosol Optical Depth* | 5 - marginal | Cloud sensitive.. Daylight only. | VIS (with narrow bandwidth) and NIR channels |
Aerosol type* | 5 - marginal | Cloud sensitive.. Daylight only. | VIS (with narrow bandwidth) and NIR channels |
Biomass | 5 - marginal | Cloud sensitive.. Index only.. Daylight only. | VIS and NIR channels. Biomass inferred from NDVI |
Cloud cover | 5 - marginal | Daylight only. | VIS and NIR channels |
Cloud drop effective radius | 4 - fair | At cloud top.. Daylight only. | VIS and NIR channels and different viewing angles (for differentiation). |
Cloud ice effective radius | 4 - fair | At cloud top.. Daylight only. | VIS and NIR channels with different viewing angles (for differentiation). |
Cloud optical depth | 4 - fair | Low-density cloud only.. Daylight only. | VIS and NIR channels with different viewing angles |
Cloud type | 5 - marginal | Daylight only. | VIS and NIR channels viewing under more angles |
Downward short-wave irradiance at Earth surface | 5 - marginal | Cloud sensitive.. Highly indirect. | VIS and NIR channels |
Earth surface albedo | 1 - primary | Cloud sensitive. | VIS channels with many viewing angles to account for anisotropic reflectivity |
Fire fractional cover | 5 - marginal | Cloud sensitive.. Coarse spatial resolution.. Daylight only. | VIS channels |
Leaf Area Index (LAI) | 4 - fair | Cloud sensitive.. Daylight only. | VIS and NIR channels. LAI inferred from NDVI |
Normalised Difference Vegetation Index (NDVI) | 3 - high | Cloud sensitive. | VIS and NIR channels |
Photosynthetically Active Radiation (PAR) | 1 - primary | Cloud sensitive. | VIS channels, range undersampled; a few different viewing angles for irradiance reconstruction |
Short-wave cloud reflectance | 2 - very high | No specific limitation. | VIS and NIR channels with multi-viewing and multi-polarisation capabiliy to account for anisotropical reflectance |
Snow cover | 4 - fair | Cloud sensitive.. Daylight only. | VIS and NIR channels |
Soil moisture at surface | 5 - marginal | Cloud sensitive.. Index only.. Daylight only. | VIS and NIR channels. Soil moisture inferred from differential brightness |
Upward short-wave irradiance at TOA | 4 - fair | Spectral interpolation needed. | VIS and NIR channels with multi-viewing and multi-polarisation capability to account for anisotropical reflectance |
Aerosol volcanic ash | 5 - marginal | Cloud sensitive.. Daylight only. | VIS and NIR channels |
Aerosol volcanic ash Total Column* | 5 - marginal | Cloud sensitive.. Daylight only. | VIS and NIR channels |
Sea-ice cover | 5 - marginal | Cloud sensitive.. Daylight only. | VIS and NIR (for contour enhancement) channels |