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Use of SAR images in the determination of internal wave parameters: an application case to the Strait of Gilbraltar

An analysis of Synthetic Aperture Radar (SAR) images along with the analysis of velocity, salinity and temperature records taken at Camarinal Sill, the main sill of the Strait of Gibraltar, is intended to explain how the different hydrodynamic variables determine the wavelength of the internal waves generated in this location. The generation and subsequent propagation, toward the Mediterranean, of these waves produces an intense surface signature (surface slicks), which can be seen clearly in SAR images. The analysis procedure includes the application of wavelets analysis to determine the wavelength from the SAR images and an analytical model to compute the theoretical wavelengths as function of the hydrodynamic variables over the sill. Those results will be compared and discussed in this work.