CEOS EO HANDBOOK – INSTRUMENT SUMMARY
- CrIS
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Full Name
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Cross-track Infrared Sounder
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Status
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Operational
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Instrument Agencies
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NOAA
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Maturity
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Medium Heritage
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Instrument Type
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Atmospheric temperature and humidity sounders 
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Geometry
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Cross-track scanning
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Instrument Technology
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Medium-resolution IR spectrometer
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Sampling
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Sounding
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Data Access
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Open Access
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Data Format
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HDF5
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Measurements and Applications
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Daily measurements of vertical atmospheric distribution of temperature, moisture, and pressure. MWIR non-operational on Suomi NPP effective 12 July 2021.
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Resolution Summary
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IFOV 14 km diameter, 1 km vertical layer resolution
[Best Resolution: 14000m]
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Swath Summary
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2200 km
[Max Swath: 2200 km]
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Accuracy Summary
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Temperature profiles: to 0.9 K, Moisture profiles: 20 - 35%, Pressure profiles: 1%
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Waveband Summary
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MWIR - TIR: 3.92 - 4.4 µm, 5.7 - 8.62 µm, 9.1 - 14.7 µm, 1300 spectral channels
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| NIR (~0.75 µm - ~1.3 µm) |
| MWIR (~3.0 µm - ~6.0 µm) |
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Instrument Measurements
Measurements Overview
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Instrument Missions
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