Measurements and Applications
Measurements of vertically resolved clear sky atmospheric motion vectors, temperature and water vapour profiles.
Full Name
Infra-Red Sounder
Status
Being developed
Instrument Agencies
Maturity
Instrument Type
Atmospheric temperature and humidity sounders 
Geometry
Earth disk scanning
Instrument Technology
Medium-resolution IR spectrometer
Sampling
Sounding
Data Access
Open Access
Data Format
NetCDF, BUFR
Resolution
Horizontal: 4 km at SSP, Vertical: 1 km
[Best Resolution: 4000m]
Swath
640 x 640 km dwells, step and stare, moving alternatley E-W and W-E moving up S-N one dwell step at the end of each row of dwells. Each disc is divided in 4 areas of Local Area Coverage (LAC).
Accuracy
clear sky AMVs: 2 m/s, temperature profile: 1 K, water vapour profile: 5%
Waveband
Band 2: 700 - 1210 cm^-1 (8.3 - 14.3 µm), Band 1: 1600 - 2175 cm^-1 (4.6 - 6 µm)
| MWIR (~3.0 µm - ~6.0 µm) |
| TIR (~6.0 µm - ~15.0 µm) |
MTG-S1 (sounding) - Meteosat Third Generation - Sounding Satellite 1 (2025 - 2036) |
| MTG-S2 (sounding) - Meteosat Third Generation - Sounding Satellite 2 (2035 - 2046) |
| Category | Parameter |
| Atmospheric Humidity Fields | Atmospheric specific humidity (LT, HT, LS, HS&M, TC)  |
| Atmospheric Temperature Fields | Atmospheric temperature (LT, HT, LS) |
| Atmospheric stability index |
| Atmospheric Winds | Wind profile (vertical) |
| Cloud type, amount and cloud top temperature | Cloud cover |
| Cloud top temperature |
| Ozone | O3 Mole Fraction |
| Radiation budget | Upwelling (Outgoing) spectral radiance at TOA |
| Surface temperature (land) | Land surface temperature |
| Surface temperature (ocean) | Sea surface temperature |
| Trace gases (excluding ozone) | HNO3 (LT, HT, LS, TC) |