Modeling Non-Point Source Pollution and Erosion into Gulf Coast Bays and Marshes
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The University of Mississippi Geoinformatics Center NASA MRC RPC – 11 July 2007 Modeling Non-Point Source Pollution and Erosion into Gulf Coast Bays and Marshes Greg Easson – UM – PI
description
Modeling Non-Point Source Pollution and Erosion into Gulf Coast Bays and Marshes. Greg Easson – UM – PI. Background. Nonpoint Source Pollution and Erosion Comparison Tool (N-SPECT) model was designed by the NOAA Coastal Services Center (NOAA-CSC) GIS based modeling systems - PowerPoint PPT Presentation
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The University of Mississippi Geoinformatics CenterNASA MRC RPC – 11 July 2007
Modeling Non-Point Source Pollution and Erosion into
Gulf Coast Bays and Marshes
Greg Easson – UM – PI
The University of Mississippi Geoinformatics CenterNASA MRC RPC – 11 July 2007
Background
• Nonpoint Source Pollution and Erosion Comparison Tool (N-SPECT) model was designed by the NOAA Coastal Services Center (NOAA-CSC)
• GIS based modeling systems • Predict potential water-quality impacts
from nonpoint source pollution and erosion.
The University of Mississippi Geoinformatics CenterNASA MRC RPC – 11 July 2007
Background
• Non-point source pollution is a major contributor to the decline in water quality in coastal areas.
• Sources of the pollution; development and land clearing, deforestation, agriculture, lawn fertilizers and farm practices
The University of Mississippi Geoinformatics CenterNASA MRC RPC – 11 July 2007
Background
• Users first enter information about their area (land cover, elevation, precipitation, and soil characteristics) to create the baseline information. They can then add different land cover change scenarios (such as a development) to get information about potential changes in surface water runoff, nonpoint source pollution, and erosion.
The University of Mississippi Geoinformatics CenterNASA MRC RPC – 11 July 2007
Objectives
• Integrate existing and next generation NASA data streams into the N-SPECT model and test the model on two estuaries in the Gulf of Mexico – Mobile Bay– St. Louis Bay
The University of Mississippi Geoinformatics CenterNASA MRC RPC – 11 July 2007
Model Inputs
• Land cover grid - LDCM• Digital elevation model • Precipitation grid - GPM• Pollutant coefficients (based on land
cover) • Soil type
The University of Mississippi Geoinformatics CenterNASA MRC RPC – 11 July 2007
Model Outputs
• Accumulated runoff, pollutant, and sediment load grids
• Pollutant concentration grids • Pollutant assessment grid, which
compares the resulting concentrations in receiving waters to user-specified water-quality standards
The University of Mississippi Geoinformatics CenterNASA MRC RPC – 11 July 2007
Project Schedule and Issues
• Schedule under development• Research Associate leaving 7-31-07• Subcontract to NOAA
The University of Mississippi Geoinformatics CenterNASA MRC RPC – 11 July 2007
Questions
