Utilizing an urban runoff model and GIS to assess pollutant loading to Bayou Chico, Florida
- Univ. of North Texas, Denton, TX (United States). Inst. of Applied Science
- Environmental Protection Agency, Gulf Breeze, FL (United States). Gulf Breeze Research Lab.
This paper describes a Geographic Information Systems (GIS) analysis of the Bayou Chico watershed and its integration with the Storm Water Management Model (SWMM) as part of a watershed approach to assessing the ecological health of this sub-estuary of Pensacola Bay. Bayou Chico is the receiving water body of a small, mostly residential and urban watershed located in southern Escambia County, Florida. The transport of pollutants into the bayou is primarily a function of precipitation. SWMM models the runoff from rainfall and uses the land use, size and physical characteristics of the watershed as factors in pollutant loading. The fate and transport of pollutants is represented by the flow of water through natural channelization as well as water management practices. A GIS database and the use of remotely sensed satellite images are used to determine the location of streets, storm drainage systems, surface runoff as well as the area and slope of the watershed. SWMM mathematically represents these physical characteristics and uses this information to determine both runoff and pollutant loading. Hydrographs and pollutographs from SWMM are to be then used in a transport and fate model (WASP). The authors discuss data required for SWMM, its analysis using GIS and model linkage with special attention given to the data acquisition and modeling process. Model results and calibration techniques will also be presented.
- OSTI ID:
- 242368
- Report Number(s):
- CONF-9511137-; ISBN 1-880611-03-1; TRN: IM9626%%196
- Resource Relation:
- Conference: 2. Society of Environmental Toxicology and Chemistry (SETAC) world conference, Vancouver (Canada), 5-9 Nov 1995; Other Information: PBD: 1995; Related Information: Is Part Of Second SETAC world congress (16. annual meeting): Abstract book. Global environmental protection: Science, politics, and common sense; PB: 378 p.
- Country of Publication:
- United States
- Language:
- English
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