Magnitude and Frequency of Rural Floods in the Southeastern United States, 2006: Volume 1, Georgia

摘要

The purpose of this report is to present methods for estimating the magnitude and frequency of floods on rural streams in Georgia, South Carolina, and North Carolina. Methods were developed using flood-frequency analyses of annual peak-flow data, through September 2006, at streamflow-monitoring stations. The report (1) includes regional equations for estimating the magnitude and frequency of peak flows on rural, ungaged, non-regulated streams in Georgia, South Carolina, and North Carolina; (2) presents estimates of the magnitude of floods at the 50-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent chance exceedance levels for 357 gaged stations in Georgia; (3) describes techniques used to develop regression equations to estimate the magnitude of floods for rural ungaged sites in Georgia, South Carolina, and North Carolina; (4) describes the accuracy and limitations of these equations; and (5) presents example applications of the methods. This report focuses on the gaged stations in Georgia that were evaluated during the study.