Mapping Shallow Sea Depth From Spot-5 Satellite
Based on the Spot-5 satellite imagery, this paper uses the wave kinematics bathymetry method to derive shallow sea depth. The Spot-5 satellite has a panchromatic band resolution of 2.5m and a width of 60km, which is suitable for obtaining nearshore gravity wave information. By generating a spectrogram by FFT conversion, the wave number, wavelength, and wave direction information of the sea surface gravity wave can be obtained, and finally the water depth can be obtained. The overall accuracy of the inversion result of water depth in this paper is 18.80%.
WKB, Satellite Imagery, Gravity Wave, FFT
2nd International Conference on Information, Communication and Engineering (ICICE 2018)
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