EPA Science Inventory

APPLICATION OF A FULLY DISTRIBUTED WASHOFF AND TRANSPORT MODEL FOR A GULF COAST WATERSHED

Citation:

TEAGUE, A. E. AND P. BEDIENT. APPLICATION OF A FULLY DISTRIBUTED WASHOFF AND TRANSPORT MODEL FOR A GULF COAST WATERSHED. Presented at Sixth International Conference on Environmental Science and Technology, Houston, TX, June 25 - 29, 2012.

Description:

Advances in hydrologic modeling have been shown to improve the accuracy of rainfall runoff simulation and prediction. Building on the capabilities of distributed hydrologic modeling, a water quality model was developed to simulate buildup, washoff, and advective transport of a conservative pollutant throughout a watershed. Coupled with the physically based VfloTM hydrologic model, the pollutant transport model was used to simulate the washoff and transport of total suspended solids for multiple storm events in the Cypress Creek Watershed, near Houston, Texas. The spatially explicit model output provides greater spatial information on the dynamics of pollutant movement during storm events as well as a greater density of temporal information than current resource limited sampling data. The output of the distributed buildup and washoff model was compared with storm water quality sampling in order to assess the performance of the model. The model output was then analyzed to temporally and spatially characterize the storm events. This effort was the first step in developing a fully distributed water quality model. As such it provides the framework for the incorporation of more sophisticated pollutant dynamics and a spatially explicit evaluation of best management practices and land use change. Thus it is a step towards advancing the use of simulation to developing sustainable and healthy communities.

Purpose/Objective:

To present at 6th International Conference on Environmental Science and Technolgy

URLs/Downloads:

DUMMY FILE.PDF   (PDF,NA pp, 3 KB,  about PDF)

Record Details:

Record Type: DOCUMENT (PRESENTATION/ABSTRACT)
Start Date: 06/25/2012
Completion Date: 06/25/2012
Record Last Revised: 01/16/2013
Record Created: 02/29/2012
Record Released: 02/29/2012
OMB Category: Other
Record ID: 241583

Organization:

U.S. ENVIRONMENTAL PROTECTION AGENCY

OFFICE OF RESEARCH AND DEVELOPMENT

NATIONAL HEALTH AND ENVIRONMENTAL EFFECTS RESEARCH LAB

GULF ECOLOGY DIVISION

ECOSYSTEM ASSESSMENT BRANCH