Reach Editor: Routing Tab

The Reach Editor's Routing tab ("Figure: Reach Editor - Routing Tab") is where you will select the reach's hydrologic routing method and enter the parameters for the selected method. There are nine routing methods to choose from:

• Null Routing
• Coefficient
• Muskingum
• Muskingum-Cunge 8-pt Channel
• Muskingum-Cunge Prismatic Channel
• Modified Puls, SSARR, Working R&D Routing
• Variable Lag & K.

Each method requires a different set of parameters.

Select the routing method for the reach from the dropdown list of the Method selector. The panel below the Method selector will fill with the appropriate fields for defining the parameters for the routing method you selected.

NOTE: If the flow entering a reach is negative, only the Null and Coefficient Routing methods will "route" that negative flow to the outflow of the reach. All other routing methods will not route negative flow and will instead produce a zero outflow. This "zero-ing out" of the negative inflow has the net effect of "creating water" and could be considered a violation of the conservation of mass of the system.