Development of a centralized database for simplifying the hazard mapping process.

Brian Waldron, Ph.D. Ground Water Institute, The University of Memphis Memphis, TN 38152-3170

The development and use of a centralized database to service geologic, geotechnical, and hydrologic information is proving to be a simple approach to hazard mapping pre-development. The Ground Water Institute, an affiliate of the Civil Engineering department at The University of Memphis, has joined with the USGS and CERI (Center for Earthquake Research and Information) to develop such a database using Oracle and ESRI GIS products. Oracle has been chosen as the database engine due to its wide acceptance, compatibility with other software products, and the ability to store spatial information such as ARC/INFO coverages and shapefiles. The ESRI product, ARC/INFO Desktop, acts as front-end package for easily entering data into the Oracle database. In addition, ArcView and ArcIMS are ESRI products used for visualizing data as read from the database. Using these products, individuals can access the database and retrieve the same geologic, geotechnical, and hydrologic information without the fear of getting out-of-date knowledge or having to keep tract of what information is where. A lithological pic file can be viewed at the same time by multiple persons in various parts of the country. As more preliminary data becomes available for creating hazard maps for Memphis, Tennessee, the acquired information will continue to be input into the centralized database for decentralized use.