Techniques for Simulating Flood Hydrographs and Estimating Flood Volumes for Ungaged Basins in East and West Tennessee

摘要

A dimensionless hydrograph developed for a variety of basin conditions in Georgia was tested for its applicability to streams in East and West Tennessee by comparing it to a similar dimensionless hydrograph developed for streams in East and West Tennessee. Eighty-three observed hydrographs in East Tennessee and 38 in West Tennessee were used in the study. Statistical analyses were performed by comparing simulated (or computed) hydrographs, derived by application of the Georgia dimensionless hydrograph, and dimensionless hydrographs developed from Tennessee data, with the observed hydrographs at 50 and 75 percent of their peak flow widths. Results of the tests indicate that the Georgia dimensionless hydrograph is virtually the same as the one developed for streams in East Tennessee but that it is different from the dimensionless hydrograph developed for streams in West Tennessee.