||Dredged Material Transport at Deep-Ocean Disposal Sites.
Abdelrhman, M. A. ;
Dettmann, E. H. ;
||Computer Sciences Corp., Narragansett, RI. ;Science Applications International Corp., Narragansett, RI.;Environmental Research Lab., Narragansett, RI.
Sediment transport ;
Solid waste disposal ;
Ocean environments ;
Deep water ;
Environmental impacts ;
Mathematical models ;
Aquatic animals ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||Assessment of environmental impact of dredged material disposal in deep ocean water calls for predictions of water column concentration, exposure time as well as the impacted area of the bottom (footprint). Predictions based on vertical settling and horizontal advection of single particles ignore the effects of bulk properties of the disposed material, vertical and horizontal diffusion, and material dilution due to entrainment of ambient water during descent. The paper highlights the spatial and temporal changes in the particle exposure fields for the water column and bottom at a hypothetical deep-ocean disposal site within the two-day period following instantaneous release of barged dredged material. The model incorporates a proposed mechanism for differential internal mixing for various size classes, and a mechanistic approach to calculating detachment of material from the main cloud.
||Pub. in Coastal Engineering Considerations in Coastal Zone Management, Proceedings of the Symposium on Coastal and Ocean Management (8th), New Orleans, LA., July 19-23, 1993. Prepared in cooperation with Science Applications International Corp., Narragansett, RI. Sponsored by Environmental Research Lab., Narragansett, RI.
|NTIS Title Notes
||Reprint: Dredged Material Transport at Deep-Ocean Disposal Sites.
||68C; 50B; 47C; 47B
||PC A03/MF A01