Remote acoustic sensing of the particulate phase of industrial chemical wastes and sewage sludge : report on the seasonal variability of the dispersion of the particulate phase as observed from three cruises, July 1977, January-February 1978, and April 1978
Citable URI
https://hdl.handle.net/1912/10385DOI
10.1575/1912/10385Abstract
The seasonal variability of the dispersion of the particulate
phase of industrial chemical waste has been studied with acoustic
backscattering techniques at Deep Water Dumpsite 106 (DWD 106).
The vertical dispersion of the particulates has been found to be
strongly dependent on the depth of the mixed layer and the magnitude
of the density gradient associated with the seasonal thermocline.
The horizontal dispersion of the particulates as a function of
depth has been found to be strongly dependent on the shear present
in the water column. Entire waste plumes have been found to be
advected out of the dumpsite in less than 24 hours when the area
is occupied by a warm core ring.
Simple calculations based upon Stoke's law are presented to
reveal the impact of variable oceanic density structure on the
sink rate of particles and to indicate the need for incorporating
these considerations into numerical models.
A short discussion is presented on (1) the need to make field
measurements on the magnitude of both turbulence and shear in the
water column and (2) the need to incorporate shear and turbulence-dependent
calculations for the sink rates of particles into those
numerical models which may be used to predict the particulate
and effluent dispersion rates at DWD 106.
Suggested Citation
Orr, M. H., Baxter, L., & Hess, F. R. (1980). Remote acoustic sensing of the particulate phase of industrial chemical wastes and sewage sludge: report on the seasonal variability of the dispersion of the particulate phase as observed from three cruises, July 1977, January-February 1978, and April 1978. Woods Hole Oceanographic Institution. https://doi.org/10.1575/1912/10385Related items
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