- water-surface profiles from historic floods (give DATEs) - water-surface profiles from the current Federal Emergency Management Agency study - discrete discharge measurements that were made at miscellaneous sites (table 1) during periods of moderate to high flow [If an existing model was used, cite it and summarize the calibration steps from the original report.] Model calibration was accomplished by adjusting values and, in some cases, n Manning’s changing the channel cross section or slope [include this latter phrase ONLY if XS and slope changes were actually made for the study model; otherwise delete] until the results of the hydraulic computations closely agreed with the observed water-surface elevations for given flows. Differences between observed and simulated water-surface elevations for the simulated flows at the USGS streamgage xx were equal to or less than ft (table between surveyed and simulated xx 4). [And/or “Differences elevations of high-water marks in the study reach for the flood of were less than ft (table 5 DATE xx of presenting these latter data in a table, these differences in simulated and observed ).”] [Instead profiles could be shown in a figure (fig. 2).] The results demonstrate that the model is capable of simulating accurate water levels over a wide range of flows in the basin. Calibration of model to target water-surface elevations at U.S. Geological Survey streamgage on XXX River at CITY, STATE (station number xxxxxxxx). [ft, feet; NAVD 88, North American Vertical Datum of 1988] Target Modeled Stage of Difference water-surface water-surface water-surface in elevation elevation elevation profile (ft) (ft) (ft, NAVD 88) (ft, NAVD 88) 10 618.74 618.73 -0.01 11 619.74 619.71 -0.03
- water-surface profiles from historic floods (give DATEs) - water-surface profiles from the current Federal Emergency Management Agency study - discrete discharge measurements that were made at miscellaneous sites (table 1) during periods of moderate to high flow [If an existing model was used, cite it and summarize the calibration steps from the original report.] Model calibration was accomplished by adjusting Manning’s n values and, in some cases, changing the channel cross section or slope [include this latter phrase ONLY if XS and slope changes were actually made for the study model; otherwise delete] until the results of the hydraulic computations closely agreed with the observed water-surface elevations for given flows. Differences between observed and simulated water-surface elevations for the xx simulated flows at the USGS streamgage were equal to or less than xx ft (table 4). [And/or “Differences between surveyed and simulated elevations of high-water marks in the study reach for the flood of DATE were less than xx ft (table 5 ).”] [Instead of presenting these latter data in a table, these differences in simulated and observed profiles could be shown in a figure (fig. 2).] The results demonstrate that the model is capable of simulating accurate water levels over a wide range of flows in the basin. Calibration of model to target water-surface elevations at U.S. Geological Survey streamgage on XXX River at CITY, STATE (station number xxxxxxxx). [ft, feet; NAVD 88, North American Vertical Datum of 1988] Stage of water-surface profile (ft) Target water-surface elevation (ft, NAVD 88) Modeled water-surface elevation (ft, NAVD 88) Difference in elevation (ft) 10 618.74 618.73 -0.01 11 619.74 619.71 -0.03
FIM_SIR_templateOct2017.docx