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• W2980727597 abstract "In 2016, the first Chinese synthetic aperture radar (SAR), the Gaofen-3 (GF-3) satellite, was launched. Unlike the single-polarizedwave mode SARs in Europe, GF-3 is the first satellite acquiring the quad-polarized SAR data in wave modeconfiguration, which could benefit the ocean wave estimation. Here, the ocean wave spectra estimation from quad-polarizedGF-3 wave mode is presented and its performances are evaluated. For the period from January to October in2017, the ocean wave spectra were inverted from GF-3 wave mode data. The quad-polarized SAR-ocean spectra inversionscheme was utilized, in which the azimuthal and range wave slopes are obtained from the vertically and linearly polarizednormalized radar cross sections and then converted to ocean wave slope spectra. The validation was also performed throughcomparisons against directional wave buoy observations. The spatio-temporal criteria of 100 km and 0.5 h, yield 87 matchups.Two representative cases illustrate the consistency between the GF-3 SAR ocean wave spectra and buoymeasurements. Statistical assessment shows the root mean square error (RMSE) of 0.35 m, 19.52 m and 24.89° for thesignificant wave height, peak wavelength and wave direction, respectively. Evaluation results indicate that the quad-polarizedalgorithm is suitable for spectral ocean wave estimation from GF-3 wave mode, and encouraging for operationalimplementation." @default.
• W2980727597 created "2019-10-25" @default.
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• W2980727597 date "2019-10-14" @default.
• W2980727597 modified "2023-09-25" @default.
• W2980727597 title "Evaluating ocean wave spectra derived from quad-polarized GF-3 wave mode SAR images against buoys" @default.
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• W2980727597 doi "https://doi.org/10.1117/12.2532683" @default.
• W2980727597 hasPublicationYear "2019" @default.
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