Sediment Erosion and Redistribution in Fine-Grained Shelf Environments
Annual project rept.
VIRGINIA UNIV CHARLOTTESVILLE DEPT OF ENVIRONMENTAL SCIENCES
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My long-term goal within the EuroSTRATAFORM program is to increase our ability to predict sediment transport in fine-grained regions of the continental shelf. Field work and the development and application of models during STRATAFORM increased our understanding of these processes and improved our ability to predict them. The Adriatic and Gulf of Lions EuroSTRATAFORM sites have characteristics forcing, margin configuration that contrast with the Eel shelf STRATAFORM study area. Testing and extending our conceptual and numerical sediment transport models at these sites is an important goal of the EuroSTRATAFORM shelf process studies. The objectives of this project are to 1 measure across-shelf and temporal variations in critical shear stress and entrainment rates 2 compare suspended sediment concentrations measured by bottom tripod with values calculated using measured entrainment rates and 3 explore the implications of spatial variations in critical shear stress on cross-shelf sediment transport and deposition. The specific objectives during FY06 were to analyze erosion rates data collected during 3 cruises in the Gulf of Lions along a cross-shelf transect near the Tet River in fall, winter and spring, incorporate them into shelf sediment transport model calculations, and compare results with available data.
- Physical and Dynamic Oceanography