Measurements of the Sea Surface Waves Parameters and the Doppler Spectrum of the Reflected Signal Using Optical and Acoustic Remote Sensing Methods

Abstract

Active and passive remote sensing techniques can be used simultaneously and their results complete each other. This paper introduces the results of the experiment that took place in October 2019 on the offshore platform in the Black Sea. Two unique pieces of equipment developed in the Institute of Applied Physics were used in the experiment: set of original optical devices for recording of range - time - intensity (RTI) images of sea surface and an underwater acoustic wave gauge. The devices were installed close to each other, optical devices were measuring slope spectrum, acoustic wave gauge can measure significant wave height and variance of slopes of the large-scale (in comparison with the wavelength of the incidence acoustic wave) waves, also the Doppler spectrum of the reflected signal can be measured. The string wave gauge is working on the platform constantly and provides measurements of the omnidirectional spectrum.