WMS:TR-20 Reservoir Data

Example of the TR-20 Resevoir Data dialog.

TR-20 allows users to route a hydrograph through a reservoir using the RESVOR TR20 file card. A user can define these reservoir routing parameters in the TR-20 Reservoir Routing dialog. Reservoirs and other types of structures (such as detention basins) can be defined from the TR-20 Reservoir Data dialog.

A user can define reservoir data by pressing the Define reservoir data button. This will bring up a dialog where the user can define the elevation-discharge-storage relationship for the reservoir. A user can enter up to 20 elevation-discharge-storage relationships for each reservoir. To assign a particular set of data to a reservoir, select the reservoir and select the OK button on the TR-20 Reservoir data dialog.

Reservoir Name

The reservoir name is used to associate resulting hydrographs with the appropriate reservoir when reading a hydrograph file after a TR-20 run. The name should be unique and no longer than eight characters.

Routing

Routing can be toggled on by selecting the Define Reservoir Routing button. After selecting the Define Reservoir Routing button, reservoir routing will be defined at the selected tree nodes. If this option is not selected, routing will not be defined at the selected tree node.

Start Routing Elevation

The start routing elevation is the water surface elevation, in feet, that routing begins for the reservoir or structure.

Input Hydrograph

One or more input hydrographs can be defined for a reservoir. WMS will combine any input hydrographs with other input hydrographs to the reservoir. The resulting hydrograph will then be routed through the reservoir. This option is useful for defining measured stream flows into a reservoir.

Related Topics

• TR-20 Overview
• Editing TR-20 Parameters