Hydrologic Routing

Watershed

Streamflow

Routing

-Hydrologic

-Hydraulic

Reservoirs

Channel

Precipitation

Snow

Runoff

Infiltration

Unit hydrograph

Timing

Flooding

Flow

Grade lines

Land Use

Frequency

• Hydrologic routing is the more simple of the two techniques.

• Based on the continuity equation which says

Inflow - Outflow = Change in Storage - or -

• A second relationship is also required which relates storage to discharge. This relationship is usually assumed, empirical, or analytical in nature.

• Two types of hydrologic routing, River and Reservoir Routing.

Previous slide

Next slide

Back to first slide

View graphic version