W. A. Harenberg 1980 <p><span>Measurements at bankfull stage were made at 136 sites </span><span>to determine whether predictions of flood discharges using </span><span>channel-geometry characteristics are as good as or better </span><span>than predictions using basin characteristics. These meas</span><span>urements are used to determine the variables of bankfull </span><span>width, area, depth, and velocity. These variables are </span><span>combined with basin characteristics for the sites, and </span><span>multiple-regression techniques are used to select the best </span><span>combination of variables to estimate the selected floods. </span></p><p><span>Generally, discharge estimates obtained from equations using channel characteristics have smaller standard errors than those using basin characteristics, and equations using both basin and channel characteristics have even lower standard errors. </span></p> application/pdf 10.3133/wri8032 en U.S. Geological Survey Using channel geometry to estimate flood flow at ungaged sites in Idaho reports