SMS:CMS-Wave Model Control

File:CMSWaveModelControl.jpg

CMS-Wave Model Control dialog

The Model Control… command in the CMS-Wave Menu opens the CMS-Wave Model Control dialog. This dialog is divided into sections for different types of parameters which are used by the model as it runs. These include:

Input Forcing

• Currents – A vector dataset can be used to define the currents for the simulation
• Water Level – A constant value or a scalar dataset can be used to define the water level for the simulation. If “constant” is selected, the constant value will be defined in the CMS-Wave Case Definition dialog for each case.
• Spectra
  • Source:
    • "Spatially Varied" – this option uses a spectral coverage with spectral data defined at one or more locations. The spectral coverage is assigned to the model in the CMS-Wave Case Definition dialog.
    • "Parent Grid" – Nesting output from a parent grid will be used to drive the simulation. The parent grid is specified by clicking on the Select… button and selecting the desired grid. The spectral grid to be used for the simulation will match the spectral grid for the parent simulation.
  • Plane Type – this option is only used if the Spatially Varied source option is selected.
    • "Half plane" – appropriate for nearshore coastal applications allowing wave input and generation on two boundaries resulting in a faster run-time.
    • "Full plane" – used with enclosed or semi-enclosed bays, estuaries, and lakes where there is no clear “offshore” direction and seas and swells may oppose each other. Allows wave input and geration on all four boundaries.
    • "Full plane with input reverse spectra" – this option allows spectral input to be used on two opposite boundaries.
  • Interpolation Type – sets the method for STWAVE to use when interpolating between spectra.
    • "Average spectra"
    • "IDW interpolation" – Inverse Distance Weighting
  • Spectral Grid
  • Create Nesting Points – if the From parent grid source option is selected and a parent grid has been specified, clicking on this button will allow specifying which points should be used from the parent grid for creating the nesting file.
• Wind – a constant value or a vector dataset can be used to define the wind for the simulation. If constant is selected, the wind direction and magnitude will be specified in the CMS-Wave Case Definition dialog for each case.
• Define Cases

Settings

The settings section is used to specify model input options including:

• Bed friction
• Matrix Solver
  • Gauss-Seidel
  • ADI
• Allow wetting and drying
• Infragravity wave effect
• Diffraction intensity
• Forward reflection – A constant value for the entire simulation or spatially varying data using a scalar dataset can be used to define the forward reflection for the model.
• Backward reflection – A constant value for the entire simulation or spatially varying data using a scalar dataset can be used to define the backward reflection for the model.
• Muddy bed – Spatially varying data using a scalar dataset can be used to define the muddy bed (values??) for the model.
• Non-linear wave effect
• Run up
• Quick mode

Output

This section is used to specify option output from the model. The output includes:

• Radiation stresses
• Sea/Swell
• Wave Breaking

Input Datasets

Here specify the format for SMS to write out the input datasets. They can be written in either ASCII or XMDF format.

Related Topics

• CMS-Wave