THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – INSTRUMENT SUMMARY - HIRS/2 -
Full Name High Resolution Infra-red Sounder/2 Status No longer operational
Instrument Agencies NOAA Maturity
Instrument Type Atmospheric temperature and humidity sounders Geometry Cross-track scanning
Instrument Technology Narrow-band channel IR radiometer Sampling Sounding
Data Access Data Format
Measurements and Applications Measures atmospheric temperature, concentrations of ozone, water vapour, methane, NOx, N2O, CFCs and other minor species, aerosol concentration, location of polar stratospheric clouds and cloud tops.
Resolution Summary 20.3 km
Swath Summary 2240 km
Accuracy Summary
Waveband Summary VIS - TIR: 0.69 - 14.95 µm (20 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 Measurements
CategoryParameterAccuracy
Atmospheric Humidity FieldsAtmospheric specific humidity (LT, HT, TC) 
Atmospheric Temperature FieldsAtmospheric temperature (LT, HT, LS, HS&M) 
Temperature of tropopause 
Cloud type, amount and cloud top temperatureCloud top height 
Cloud top temperature 
OzoneOzone profile 
Radiation budgetUpwelling (Outgoing) long-wave radiation at TOA 
Surface temperature (land)Land surface temperature 
Trace gases (excluding ozone)Atmospheric Chemistry - CO2 (column/profile) 
Instrument Missions
NOAA-9 - National Oceanic and Atmospheric Administration - 9 (1984 - 1997)
NOAA-10 - National Oceanic and Atmospheric Administration - 10 (1986 - 1997)
NOAA-11 - National Oceanic and Atmospheric Administration - 11 (1988 - 2004)
NOAA-12 - National Oceanic and Atmospheric Administration - 12 (1991 - 2005)
NOAA-13 - National Oceanic and Atmospheric Administration - 13 (1993 - 1993)
NOAA-14 - National Oceanic and Atmospheric Administration - 14 (1994 - 2005)
Copyright CEOS | About | Site Search Researched and written by Symbios