Gridded product of SMOS and SMAP TB (daily average; resolution 12-15 km) and uncertainties

The Microwave Imagine Radiometer with Aperture Synthesis MIRAS aboard ESAs SMOS satellite measures the Earths surface brightness temperature TB at LBand frequency of 14 GHz NASAs SMAP spacecraft carries a 12 GHz radar and a 14 GHz radiometer that share a single feedhorn and a mesh reflector The synthetic aperture technique of SMOS allows to measure TB at a range of incidence angles while SMAP uses a conical scan geometry and a constant incidence angle at 40 In order to generate a homogeneous SMOSSMAP data product the SMOS TB will be interpolated to the SMAP incidence angle of 40 SMOS and SMAP polarized TBs and their estimated uncertainties will be projected into a common grid eg polar stereographic or EASE Data products will be generated using standard NetCDF format