Template:Gravity Waves Courant Number

Gravity Waves Courant Number

The toolbox includes a tool for calculating the Courant number given the time step.

Note: the variable here is depth, not elevation. For applications relative to mean sea level, using the negative of the elevation relative to a datum is acceptable, but if the water level will vary, the depth is actually the water level minus the ground elevation.

${\displaystyle CourantNumber=TimeStep*(Gravity*Depth)^{0.5}/NodalSpacing}$

The Gravity Waves Courant Number tool dialog has the following options:

• Input dataset – This is a required input parameter. Specify which depth dataset will be used to generate the gravity wave Courant number dataset.
• Gravity – Enter the gravity value.
• Use time step – Enter the time step value.
• Gravity waves time step dataset – Enter the name for the new gravity wave Courant number dataset.