{"id":905,"date":"2015-01-19T09:18:11","date_gmt":"2015-01-19T09:18:11","guid":{"rendered":"http:\/\/www.wmo-sat.info\/satellite-user-readiness\/?p=905"},"modified":"2025-05-14T15:54:16","modified_gmt":"2025-05-14T15:54:16","slug":"mtg-areas-of-coverage-and-observations-schedule","status":"publish","type":"post","link":"https:\/\/www.wmo-sat.info\/satellite-user-readiness\/mtg-areas-of-coverage-and-observations-schedule\/","title":{"rendered":"MTG Areas of Coverage and Observations Schedule"},"content":{"rendered":"

Flexible Combined Imager (FCI)<\/h4>\n
\"FCI

FCI instrument in at test centre. Credit: ESA<\/p><\/div>\n

The Flexible Combined Imager (FCI) on the MTG-I satellite continues the very successful operation of the Spinning Enhanced Visible and Infrared Imager (SEVIRI) on Meteosat Second Generation (MSG).<\/p>\n

Requirements for the FCI were formulated by regional and global Numerical Weather Prediction (NWP) and Nowcasting communities. These requirements are reflected in the design which allows for Full Disc Scan (FDS), with a basic repeat cycle of 10 minutes, and a European Regional-Rapid-Scan (RRS) which covers one-quarter of the full disc with a repeat cycle of 2.5 minutes.<\/p>\n

The FCI takes measurements in 16 channels, of which eight are placed in the solar spectral domain between 0.4 \u00b5m to 2.2 \u00b5m, delivering data with a 1 km spatial resolution. The additional eight channels are in the thermal spectral domain between 3.8 \u00b5m to 13.3 \u00b5m, delivering data with a 2 km spatial resolution. In the RSS mode two channels in the solar domain will be disseminated with advanced spatial resolution of 0.5 km. In the thermal domain two channels will have an advanced spatial resolution of 1 km. The scanning domain is the so-called LAC4 domain, with the wider Europe region enclosed.<\/p>\n\n\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Instrument information<\/strong><\/caption>\n
Channel<\/th>\nCentre Wavelength<\/th>\nSpectral Width<\/th>\nSpatial Sampling Distance (SSD)<\/th>\n<\/tr>\n<\/thead>\n
VIS 0.4<\/td>\n0.444 \u00b5m<\/td>\n0.060 \u00b5m<\/td>\n1.0 km<\/td>\n<\/tr>\n
VIS 0.5<\/td>\n0.510 \u00b5m<\/td>\n0.040 \u00b5m<\/td>\n1.0 km<\/td>\n<\/tr>\n
VIS 0.6<\/td>\n0.640 \u00b5m<\/td>\n0.050 \u00b5m<\/td>\n1.0 km; 0.5 km*<\/td>\n<\/tr>\n
VIS 0.8<\/td>\n0.865 \u00b5m<\/td>\n0.050 \u00b5m<\/td>\n1.0 km<\/td>\n<\/tr>\n
VIS 0.9<\/td>\n0.914 \u00b5m<\/td>\n0.020 \u00b5m<\/td>\n1.0 km<\/td>\n<\/tr>\n
NIR 1.3<\/td>\n1.380 \u00b5m<\/td>\n0.030 \u00b5m<\/td>\n1.0 km<\/td>\n<\/tr>\n
NIR 1.6<\/td>\n1.610 \u00b5m<\/td>\n0.050 \u00b5m<\/td>\n1.0 km<\/td>\n<\/tr>\n
NIR 2.2<\/td>\n2.250 \u00b5m<\/td>\n0.050 \u00b5m<\/td>\n1.0 km; 0.5 km*<\/td>\n<\/tr>\n
IR 3.8 (TIR)<\/td>\n3.800 \u00b5m<\/td>\n0.400 \u00b5m<\/td>\n2.0 km; 1.0 km*<\/td>\n<\/tr>\n
WV 6.3<\/td>\n6.300 \u00b5m<\/td>\n1.000 \u00b5m<\/td>\n2.0 km<\/td>\n<\/tr>\n
WV 7.3<\/td>\n7.350 \u00b5m<\/td>\n0.500 \u00b5m<\/td>\n2.0 km<\/td>\n<\/tr>\n
IR 8.7 (TIR)<\/td>\n8.700 \u00b5m<\/td>\n0.400 \u00b5m<\/td>\n2.0 km<\/td>\n<\/tr>\n
IR 9.7 (O3<\/sub> )<\/td>\n9.660 \u00b5m<\/td>\n0.300 \u00b5m<\/td>\n2.0 km<\/td>\n<\/tr>\n
IR 10.5 (TIR)<\/td>\n10.500 \u00b5m<\/td>\n0.700 \u00b5m<\/td>\n2.0 km; 1.0 km*<\/td>\n<\/tr>\n
IR 12.3 (TIR)<\/td>\n12.300 \u00b5m<\/td>\n0.500 \u00b5m<\/td>\n2.0 km<\/td>\n<\/tr>\n
IR 13.3 (CO2<\/sub> )<\/td>\n13.300 \u00b5m<\/td>\n0.600 \u00b5m<\/td>\n2.0 km<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Note: The channels VIS 0.6, NIR 2.2, IR 3.8 and IR 10.5 are delivered in both FDSS and RSS sampling configurations, the latter is indicated by * in the table.<\/em><\/p>\n

\"Graphic

Field of view of the Lightning Imager instrument<\/p><\/div>\n

Lightning Imager (LI)<\/h4>\n

The Lightning Imager (LI), on board the MTG-I satellites, continuously measures at a wave-length of 777.4 nm with a very narrow bandwidth, with a spatial resolution 4.5 km at sub-satellite point, triggered by a variable threshold \u2014 optical pulses initiated by lightning emitting energy of larger than between 4 and 7 \u00b5Jm-2sr-1.<\/p>\n

The field of view (FOV) of the LI instrument is covered by four identical cameras on the instrument, each covering one out of four domains on the observable Earth disc.<\/p>\n

Products derived from the instrument data are arranged around the following three categories:<\/p>\n

    \n
  1. Events \u2014 what the instrument measures, a triggered pixel in the detector grid.<\/li>\n
  2. Groups \u2014 neighbouring events in the same integration period (1 ms), representing a lightning stroke.<\/li>\n
  3. Flashes \u2014 collection of groups in temporal and spatial vicinity (XX km, YY milliseconds), representing a lightning flash.<\/li>\n<\/ol>\n

    The LI complements the two NOAA GLMs (Geostationary Lightning Mapper) on the GOES-R and the GOES-S satellites, contributing, in the long term, to near global coverage.<\/p>\n

    Infrared Sounder (IRS)<\/h4>\n
    \"Graphic

    MTG Infrared Sounder dwell coverage<\/p><\/div>\n

    The IRS will deliver over the Full Disc in the Long-Wave Infrared (LWIR) 800 spectral channels and in the Mid-Wave Infrared (MWIR) 920 channels with a basic repeat cycle of 60 minutes.<\/p>\n

    The IRS is based on an imaging Fourier-interferometer with a hyperspectral resolution of 0.625 cm-1 wave-number, taking measurements in two bands, the Long-Wave Infrared (LWIR) and the Mid-Wave Infrared (MWIR), with a spatial resolution of 4 km.<\/p>\n

    Summary of technical specifications:<\/p>\n