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Abstract
Modeling Sediment and Contaminant Pathways to the Cedar River
Track: Water Resources
Author(s): Nadine Trahan, Ying Ouyang
Scientists from the St. Johns River Water Management District in Florida have identified significant concentrations of heavy metals in sediment samples taken from the Cedar River. Although some metals occur naturally in the environment, high concentrations may pose hazards to aquatic organisms. Modeling sediment and adsorbed contaminant transport within the contributing basins can help to identify possible contaminant sources. This paper describes a GIS-based mass balance model of overland sediment transport to the Cedar River. Parameters considered in the model include contaminant properties, elevation, rainfall, land cover, soil type, roughness, overland channel depths, flow, and infiltration rates.
Nadine Trahan
Jones, Edmunds, & Associates, Inc.
GIS
730 NE Waldo Road, Bldg. A
Gainesville , FL 32641
USA
Phone: 386-329-4275
Fax: 386-329-4329
E-mail: ntrahan@sjrwmd.com
Ying Ouyang
St. Johns River Water Management District
Environmental Sciences
Post Office Box 1429
Palatka 32178
USA
Phone: 386-312-2320
Fax: 386-329-4329
E-mail: youyang@sjrwmd. com