CEOS EO HANDBOOK – INSTRUMENT SUMMARY
- MIRAS (SMOS)
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Full Name
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Microwave Imaging Radiometer using Aperture Synthesis (MIRAS)
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Status
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Operational
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Instrument Agencies
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ESA , CNES
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Maturity
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Instrument Type
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Imaging multi-spectral radiometers (passive microwave)  and Multiple direction/polarisation radiometers
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Geometry
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Side-looking
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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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Measurements and Applications
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Objective is to meassure sea surface salinity and soil moisture in support of climate, meteorology, hydrology, and oceanography applications. New applications include Soil freeze/thaw, ocean severe winds, sea ice thickness, vegetation optical depth and solar flux.
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Resolution Summary
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33 - 50 km depending on the position in the swath - resampled to 15 km grid
[Best Resolution: 5000m]
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Swath Summary
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Hexagon shape, nominal width 1050 km allowing a 3 day revisit time at the equator
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Accuracy Summary
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2.6 K absolute accuracy, RMS 1.6-4 K depending on the scene and the position within the swath
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Waveband Summary
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L-Band 1.41 GHz
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| MW (~0.1 cm - ~100 cm) |
| L-Band (2 - 1 GHz) |
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Instrument Measurements
Measurements Overview
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Instrument Missions
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