The Meteosat Visible and InfraRed Imager (MVIRI) is a high resolution radiometer with three spectral bands in the visible, infrared and water vapour regions of the electro-magnetic spectrum. It constitutes the main payload of Meteosat. Radiance data from the full earth disc are acquired during a 25 minute scan period. This is followed by a five minute re-trace and stabilisation interval, so that one complete set of full earth disc images is available every half-hour. Scanning from east to west is achieved through the spin of the satellite. Scanning from south to north is achieved by small incremental steps in the pointing of the radiometer telescope. An example of a full disc image in the visible channel is shown above, together with a diagram of the spin-scan concept.


Status: Operational
Satellite METEOSAT serie
Launch Date: September 1999
Type: Imaging multi-spectral radiometers (vis/IR)
Measurements and Applications: Measures cloud cover, motion, height, upper tropospheric humidity and sea surface temperature

Technical Characteristics

Resolution: 2.5 - 5 km
N. of Bands: 3
Wavebands: VIS - NIR: 0.5 - 0.9 µm,
TIR: 5.7 -12.5 µm
Swath: Full Earth Disk


Access to Meteosat Firs Generation Data