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<br />TABLES <br /> <br />Page <br /> <br />Table <br /> <br />1. Comparisons of manual mea6urements and geographic-information- <br />system-procedure measurements of selected drainage-basin <br />characteristics at selected streamflow-gaging stations ...................................14 <br /> <br />2. Statewide drainage-basin characteristic equations for estimating design- <br />flood discharges in Iowa..................................................................................... 17 <br /> <br />3. Statewide channel-geometry characteristic equations for estimating <br />design-flood discharges in Iowa......................................................................... 23 <br /> <br />4. Region I channel-geometry characteristic equations for estimating design- <br />flood discharges in Iowa outside of the Des Moines Lobe landform <br /> <br />region.................................................................................................................. 25 <br /> <br />5. Region II channel-geometry characteristic equations for estimating design- <br />flood discharges in Iowa within the Des Moines Lobe landform region .........26 <br /> <br />6. Statistical summary for selected statewide drainage-basin and channel- <br />geometry characteristics, and for selected regional channel-geometry <br />characteristics at streamflow-gaging stations in Iowa ....................................33 <br /> <br />7. Comparisons of manual measurements made from different scales of <br />topographic maps of primary drainage-basin characteristics used in the <br /> <br />regression equations .......... .................. ...... .............................. ......... .......... .......50 <br /> <br />8. Flood-frequency data for streamflow-gaging stations in Iowa ........................57 <br /> <br />9. Selected drainage-basin and channel-geometry characteristics for <br />streamflow-gaging stations in Iowa .................................................................. 80 <br /> <br />I <br /> <br /> <br />~ ~~Sv <br />