IEEE Transactions on Geoscience and Remote Sensing · 1982 · 18 citations · 7 references
Natural SciencesOcean EngineeringOceanographyMarine MeteorologyOcean InstrumentationRemote SensingRadar Beam GeometryRadar CalibrationRadar InstrumentationRadar Signal ProcessingSatellite SensorsSea Ice Remote SensingOcean Surface Wind RetrievalRadar ScatterometryScatterometer DesignSea Surface Wind FieldsUser Requirement SpecificationsWind Direction MeasurementWind Field RetrievalWind Speed Measurement
Study results are presented showing performance capability of a spaceborne scatterometer to measure ocean surface wind speed and direction operationally. In addition, a research mode is described which will allow development of improved radar signatures for ocean, sea ice, and land targets. The study results show that a scatterometer can meet the operational user requirement of ±2 m/s wind-speed accuracy (or ±10 percent, whichever is greater) and ±20° wind-direction accuracy over most of the expected ocean surface conditions. The six-beam scatterometer design evaluated is shown to be skillful (>90 percent correct) in specifying the correct wind-vector solution (with a 1800° ambiguity) from the multiple solutions derived. Further improvement must rely on meteorological and pattern-recognition techniques which are being studied.
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