THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – INSTRUMENT SUMMARY - CrIS -
Full Name Cross-track Infrared Sounder Status Operational
Instrument Agencies NOAA Maturity Medium Heritage
Instrument Type Atmospheric temperature and humidity sounders Geometry Cross-track scanning
Instrument Technology Medium-resolution IR spectrometer Sampling Sounding
Data Access Data Format HDF-5
Measurements and Applications Daily measurements of vertical atmospheric distribution of temperature, moisture, and pressure.
Resolution Summary IFOV 14 km diameter, 1 km vertical layer resolution
Swath Summary 2200 km
Accuracy Summary Temperature profiles: to 0.9 K, Moisture profiles: 20 - 35%, Pressure profiles: 1%
Waveband Summary MWIR - TIR: 3.92 - 4.4 µm, 5.7 - 8.62 µm, 9.1 - 14.7 µm, 1300 spectral channels
NIR (~0.75 µm - ~1.3 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, TC) 
Atmospheric pressure (over land surface) 
Atmospheric pressure (over sea surface) 
Trace gases (excluding ozone)Atmospheric Chemistry - CO2 (TC)2 [ppm]
Instrument Missions
Suomi NPP - Suomi National Polar-orbiting Partnership (2011 - 2020)
NPOESS-1 - National Polar-orbiting Operational Environmental Satellite System - 1 (2013 - 2020)
JPSS-1 - Joint Polar Satellite System - 1 (2017 - 2024)
NPOESS-5 - National Polar-orbiting Operational Environmental Satellite System - 4 (2018 - 2023)
NPOESS-3 - National Polar-orbiting Operational Environmental Satellite System - 3 (2018 - 2025)
JPSS-2 - Joint Polar Satellite System - 2 (2021 - 2028)
JPSS-3 - Joint Polar Satellite System - 3 (Polar Follow-on) (2026 - 2033)
JPSS-4 - Joint Polar Satellite System - 4 (Polar Follow-0n) (2031 - 2038)
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