This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 640276.
Remedy 2: Use of models which require physical inputs either from Land Surface Models (LSMs) or remotely-sensed variables
While retrievals of emissivity and surface-skin temperature are currently used for microwave atmospheric sounding and imaging instruments over land, as a long-term goal, it would be beneficial to move towards the use of models which require physical inputs either from Land Surface Models (LSMs) or remotely-sensed variables. Uncertainties should also be estimated. We therefore suggest, as long-term goals:
- The development of emissivity models over a wide range of frequencies (1-200 GHz) that rely on remotely-sensed parameters and/or atlases of land-surface characteristics; and are validated with ground-based or airborne radiometer measurements for different surface types.
- Inter-comparisons of available emissivity models, in particular physically based (e.g. multilayer) and simplified models.
There is a need to establish traceable uncertainties for NWP fields and radiances calculated from them.
Documented, quantitative, evaluation of land surface emissivity values estimated from models with respect to measurements of land-surface emissivity obtained during experimental campaigns, for a globally representative range of surfaces.
- Medium
- Single institution
- Consortium
- Less than 5 years
- Medium cost (< 5 million)
- No
- National funding agencies
- National Meteorological Services
- ESA, EUMETSAT or other space agency
- Academia, individual research institutes