You are here:
A GIS APPLICATION AND RESOURCE TOOL FOR USE ON STUDIES OF THE LAKE TEXOMA ECOLOGICAL SYSTEM
Citation:
Burden*, D S. AND J. Masoner. A GIS APPLICATION AND RESOURCE TOOL FOR USE ON STUDIES OF THE LAKE TEXOMA ECOLOGICAL SYSTEM. Presented at 21st Annual Environmental Systems Research Institute International Conference, San Diego, CA, 7/9-13,2001.
Description:
Investigations are underway at Lake Texoma to develop tools and information needed to evaluate the transport and attenuation of contaminants and stressors in a lake ecosystem, and link them to observable ecological effects. The U. S. Environmental Protection Agency (USEPA),
U. S. Geological Survey (USGS), U. S. Army Corps of Engineers (USACE), University of North Texas (UNT), Oklahoma University (OU), and the Oklahoma Water Resources Board (OWRB) are collecting and analyzing data to target stressor input into Lake Texoma. Data are being collected on a monthly basis and are stored in various data bases, which will be merged into one centralized data base. To collect and evaluate the first year of data, a desktop Geographic Information System (GIS) was built.
A base map of the study area was created using ArcView GIS software. The base map data included hydrography, roads, county boundaries, and topographical Digital Raster Graphs (DRGs). Each GIS data set consists of point features based on the locations of USEPA, OU, and UNT monitoring sites. These point features are dynamically linked to a geographic data-table, a water-quality data table and/or an ecological data table by a common attribute. When one monitoring site is selected, records in corresponding tables also are selected. Records can be analyzed and queried and the results shown in a graphical manner. Several of avenue programs perform routine tasks and specified GIS functions in a timely manner with a behind-the-scenes approach.
This is an abstract of a proposed presentation and does not necessarily reflect EPA policy.