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Instrument image

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.

Status
Not Operational
Type
Imaging multi-spectral radiometers (passive microwave) &
Technical Characteristics
Accuracy:
Temparature: 2.6K
Spatial Resolution:
20km
Swath Width:
20km
Waveband:
Microwave: 23.8 and 36.5GHz
Earth Topics
Atmosphere ( Atmospheric Temperature )
Related Instruments
MVIRI  
Available Resources Type Access
ENVISAT RA-2 and MWR Products and Algorithms User Guide Technical Document link
RA2_MWR_IPF_5.03 Technical Document link
MWR Products Specifications Product Document download
Annex A - Product Data Conventions Product Document download
Minimize Latest Mission Operations News

F-PAC/CNES - Change of access credentials

17 April 2014

Following the migration of the ESA EO dissemination server "diss-nas-fp.eo.esa.int" at F-PAC/CNES on 16 April 2014, the pwds to access the Envisat Radar Altimetry (RA2) and Precise Orbit (DORIS) data have been changed.