The main objective of the microwave radiometer is the measurement of atmospheric humidity as supplementary information for tropospheric path correction of the radar altimeter signal, which is influenced both by the integrated atmospheric water vapour content and by liquid water. In addition, MWR measurement data are useful for the determination of surface emissivity and soil moisture over land, for surface energy budget, investigations to support atmospheric studies, and for ice characterisation.
The MWR instrument on board Envisat is a derivative of the radiometers used on the ERS-1 and ERS-2 satellites. It is a dual-channel nadir-pointing Dicke-type radiometer, operating at frequencies of 23.8 GHz and 36.5 GHz.
Imaging multi-spectral radiometers (passive microwave) &
Microwave: 23.8 and 36.5GHz
Atmosphere ( Atmospheric Temperature )
Latest Mission Operations News
14 September 2016
The Level 2 re-processing of the full MIPAS mission (from 01/07/2002 up to 08/04/2012, including the Full Resolution and the Optimized Resolution mission phases) has been completed with the ESA processor ML2PP version 7.03, and the data have been assessed with respect to their quality.
The re-processed MIP_NL__2P data is made available to the user community for direct download via the ESA centralised dissemination service.
Related Data Types
Related (Key) Documentation