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Science 10 September 1976:
Vol. 193. no. 4257, pp. 1005 - 1007
DOI: 10.1126/science.193.4257.1005
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Articles

Acoustic Tracking of Ocean-Dumped Sewage Sludge

JOHN R. PRONI 1, FRED C. NEWMAN 1, RONALD L. SELLERS 1, and CHARLES PARKER 2

1 Atlantic Oceanographic and Meteorological Laboratories, National Oceanic and Atmospheric Administration, Miami, Florida 33149
2 Marine Ecosystems Analysis, New York Bight Project, Marine Science Center, State University of New York, Stony Brook 11790

With a modified 200-kilohertz acoustic echo sounder, it has been possible to detect and map sewage dumped into the ocean over several hours. The three-dimensional distribution of suspended material and its rate of diffusion are indicated after digital processing of the data.

Submitted on January 21, 1976
Revised on April 23, 1976

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Science. ISSN 0036-8075 (print), 1095-9203 (online)