Rainfall-Runoff Modeling

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Runoff plays an important role in the hydrological cycle by returning excess precipitation to the oceans and controlling how much water flows into stream systems. Modeling runoff can help to understand, control, and monitor the quality and quantity of water resources.

Required Data

• Watershed Delineation
• Precipitation Estimates
• Rainfall Losses
• Unit Hydrograph
• Reach Routing

Best Practices Resources

Hydrologic Engineering Requirements for Reservoirs (EM 1110-2-1420) (U.S. Army Corps of Engineers)

Engineering Guidelines for the Evaluation of Hydropower Projects: Chapter 8- Determination of the Probable Maximum Flood (Federal Energy Regulatory Commission)

National Engineering Handbook: Chapter 4 - Storm Rainfall Depth and Distribution (Natural Resources Conservation Service)

Flood Hydrology Manual (Bureau of Reclamation)

Trainings

On-Demand Webinar: Introduction to Hydrologic Modeling Using Geospatial Information

Citations:

Revision ID: 5220
Revision Date: 12/13/2022