IRAS Instrument

Measurements and Applications

Atmospheric sounding for weather forecasting.

Instrument Summary

Full Name
InfraRed Atmospheric Sounder
Status
Operational
Instrument Agencies
NRSCC, CAST, NSMC-CMA, CNSA
Maturity
Instrument Type
Atmospheric temperature and humidity sounders
Geometry
Cross-track scanning
Instrument Technology
Narrow-band channel IR radiometer
Sampling
Sounding
Data Access
Open Access
Data Format
L-1 data: HDF 5.0

Performance Summary

Resolution
14 km
Swath
952 km
[Max Swath: 952 km]
Accuracy
17 km
Waveband
VIS - TIR: 0.65 - 14.95 µm (26 channels)
VIS (~0.40 µm - ~0.75 µm)
NIR (~0.75 µm - ~1.3 µm)
SWIR (~1.3 µm - ~3.0 µm)
MWIR (~3.0 µm - ~6.0 µm)
TIR (~6.0 µm - ~15.0 µm)

Instrument Missions

FY-3A - FY-3A Polar-orbiting Meteorological Satellite (2008 - 2018)
FY-3B - FY-3B Polar-orbiting Meteorological Satellite (2010 - 2020)
FY-3C - FY-3C Polar-orbiting Meteorological Satellite (2013 - 2025)

Instrument Measurements