Characterizing underwater noise during rain at the northeast Pacific continental margin

Large scale studies of underwater noise during rain are important for assessing the ocean environment and enabling remote sensing rates over open ocean. In this study, approximately 3.5 yrs acoustical meteorological data recorded at northeast Pacific continental margin evaluated. The acoustic a sampling rate 64 kHz depths 81 581 m shelf slope, respectively. Rain wind speeds provided by surface buoys located in vicinity each hydrophone. Average power spectra have been computed different speeds, linear nonlinear regression performed. main findings (1) slopes highly depends on frequency range, rate, speed, measurement depth; (2) levels between 200 Hz 10 significantly increase with increasing speed; (3) highest correlation spectral level occurs 13 kHz, thus, coinciding peak due to small raindrops. results study indicate that previously proposed algorithms estimating from not universally applicable but rather be adapted locations.