CEOS EO HANDBOOK – INSTRUMENT SUMMARY
- SWIM
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Full Name
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Surface Waves Investigation and Monitoring
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Status
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Operational
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Instrument Agencies
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CNES
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Maturity
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Instrument Type
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Scatterometers 
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Geometry
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Instrument Technology
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Radar scatterometer
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Sampling
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Other
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Data Access
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Constrained Access
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Data Format
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netcdf
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Measurements and Applications
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Ku-band Real-aperture radar (RAR) system, multi-incindence beams(0-10°) and azimuth scanning. Measurement of 2D ocean waves spectrum
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Resolution Summary
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50x50km on 2D spectra
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Swath Summary
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140 km
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Accuracy Summary
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accuracy for wave estimates: minimum detectable wavelength of about 70 m, maximum detectable wavelength about 500m, accuracy in wave propagation direction of about 15°, accuracy in wavelength of 10 to 20%, accuracy in significant wave height of 10% or better than 40-50 cm (TBC)
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Waveband Summary
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Ku-band
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Instrument Measurements
Measurements Overview
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Instrument Missions
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