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Citation
| Vonnahme, C.C., Ortel, T.W., Ishii, A.L., and Charlton, A.J., 1999, Near Real-Time Flood-Simulation System for Salt Creek in Du Page County, Illinois, Planning Ahead: Flood-Loss Reduction for the 21st Century, Association of State Floodplain Managers, Portland, Oregon, 6 p.. |
Abstract
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A near real-time flood-simulation system is being developed by the U.S. Geological Survey (USGS), in cooperation with the Du Page County Department of Environmental Concerns, for a 15-mile reach of Salt Creek in Du Page County, Illinois. The system will be used to estimate the downstream effects of diverting streamflow during flood conditions into the Elmhurst Quarry Flood Control Facility, an off-line stormwater diversion reservoir containing about 8,300 acre-feet of storage.
The continuous-simulation model, Hydrologic Simulation Program-Fortran (HSPF), is used to simulate the rainfall-runoff and snowmelt relations. The runoff time series resulting from the HSPF simulation is routed using the one-dimensional unsteady-flow model, Full Equations (FEQ). Climatologic data are acquired and relayed to the County offices from a radio-telemetered precipitation-gage network and other sources in near real time. Preprocessor routines are used for data quality assurance/quality control and for filling missing records. The interactive computer program Generation and Analysis of Model Simulation Scenarios (GENSCN) is the interface to the HSPF and FEQ models and aids in data-base management. |
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