CEOS EO HANDBOOK – INSTRUMENT SUMMARY
- TMI
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Full Name
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TRMM Microwave Imager
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Status
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No longer operational
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Instrument Agencies
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NASA
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Maturity
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Instrument Type
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Imaging multi-spectral radiometers (passive microwave) 
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Geometry
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Instrument Technology
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Multi-purpose imaging MW radiometer
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Sampling
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Imaging
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Data Access
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Open Access
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Data Format
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HDF
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Measurements and Applications
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Measures rainfall rates over oceans (less reliable over land), combined rainfall structure and surface rainfall rates with associated latent heating. Used to produce monthly total rainfall maps over oceans.
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Resolution Summary
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Vertical: 2.5 km approx; Horizontal: 18 km
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Swath Summary
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790 km
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Accuracy Summary
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Liquid water: 3 mg/cm3, Humidity: 3 mg/cm3, Ocean wind speed: 1.5 m/s
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Waveband Summary
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Microwave: 10.7 GHz, 19.4 GHz, 21.3 GHz, 37 GHz, and 85.5 GHz
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Instrument Measurements
Measurements Overview
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Instrument Missions
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