RT Journal Article SR Electronic T1 Ground-penetrating radar: A tool for mapping reservoirs and lakes JF Journal of Soil and Water Conservation FD Soil and Water Conservation Society SP 370 OP 373 VO 46 IS 5 A1 C. C. Truman A1 L. E. Asmussen A1 H. D. Allison YR 1991 UL http://www.jswconline.org/content/46/5/370.abstract AB Ground-penetrating radar was evaluated as a tool for mapping reservoir and lake bottoms and providing stage-storage information. An impulse radar was used on a 1.4-ha (3.5-acre) reservoir with 31 transects located 6.1 m (20 feet) apart. Depth of water and lateral extent of the lake bottom were accurately measured by ground-penetrating radar. A linear (positive) relationship existed between measured water depth and ground-penetrating radar-determined water depth (R2=0.989). Ground-penetrating radar data were used to create a contour map of the lake bottom. Relationships between water (contour) elevation and water surface area and volume were established. Ground-penetrating radar proved to be a useful tool for mapping lakes, detecting lake bottom variations, locating old stream channels, and determining water depths. The technology provides accurate, continuous profile data in a relatively short time compared to traditional surveying and depth-sounding techniques.