Measurements and Applications
Measures profiles of atmospheric temperature, humidity, ozone, carbon monoxide, columns of methane, nitrous oxide, and other minor gases, and sea, ice, and land surface temperature and emissivity. Provides information on aeorols and cloud: fractional coverage, phase, cloud top height (input to Polar AMVs) and particle size. Prime applications: NWP, AC/AQ, climate. Secondary applications: NWC, land/ocean surface monitoring. IASI-NG will resume IASI role as internationl standard for satellite inter-calibration (GSICS).
Full Name
Infrared Atmospheric Sounding Interferometer - New Generation
Status
Being developed
Instrument Agencies
Maturity
Instrument Type
Atmospheric temperature and humidity sounders 
Geometry
Cross-track scanning
Instrument Technology
Medium-resolution IR spectrometer
Sampling
Sounding
Data Access
Open Access
Data Format
Resolution
Vertical: 1 - 30 km, Horizontal: 25 km
[Best Resolution: 25000m]
Swath
2000 km
[Max Swath: 2000 km]
Waveband
MWIR - TIR: 645 to 2760 cm-1 or 3.62 - 15.5 µm (16921 spectral samples)
| MWIR (~3.0 µm - ~6.0 µm) |
| TIR (~6.0 µm - ~15.0 µm) |
METOP-SG A1 - EUMETSAT Polar System - Second Generation - atmosphere sounding and imaging satellite 1 (2025 - 2034) |
| METOP-SG A2 - EUMETSAT Polar System - Second Generation - atmosphere sounding and imaging satellite 2 (2033 - 2042) |
| METOP-SG A3 - EUMETSAT Polar System - Second Generation - atmosphere sounding and imaging satellite 3 (2039 - 2047) |
| Category | Parameter |
| Aerosols | Volcanic ash |
| Atmospheric Humidity Fields | Atmospheric specific humidity (LT, HT, LS, HS&M, TC)  |
| Atmospheric Temperature Fields | Atmospheric temperature (LT, HT, LS, HS&M) |
| Atmospheric stability index |
| Atmospheric Winds | Wind profile (vertical) |
| Cloud type, amount and cloud top temperature | Cloud cover |
| Cloud top height |
| Cloud top temperature |
| Cloud top pressure |
| 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) | CH4 Mole Fraction |
| CO2 Mole Fraction |
| HNO3 (LT, HT, LS, TC) |
| SO2 Total Column |