Abstract
PULSED high frequency acoustics has been shown to have unique applications in the detection and measurement of oceanic phenomena such as internal waves1–3 and dispersion of ocean-dumped sewage sludge4,5 or dredge material6. With moderate to high pulse repetition rates, a virtually continuous record of water column scattering strength is available to depths of the order of 500 m from a ship travelling at speeds of 4 or 5 knots. We used this feature to detect acoustically the interfaces associated with an intrusion of cold New England shelf water into the warmer slope water during a 9-d period in June 1976.
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NEWMAN, F., PRONI, J., WALTER, D. et al. Acoustic imaging of the New England shelf-slope water mass interfaces. Nature 269, 790–791 (1977). https://doi.org/10.1038/269790a0
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DOI: https://doi.org/10.1038/269790a0
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