SMS:CSHORE

CSHORE is a transect morphology model which computes sediment transport along a specified profile/transect for a set of storm conditions.

Creating a Simulation with Transect Coverages

Create a new CSHORE Simulation by:

1. Right-click in a blank section of the project explorer.
2. Then select New Simulation→CSHORE.
3. This brings up the coverage dialog. Select and name coverages you wish to be created (keep the transect coverage selected). Press OK.
4. This creates a simulation along with a transect coverage (roughness coverage would also be created if the option was on).

Working with Transects

File:CSHORE Arc Att.jpg

CSHORE Arc Attributes dialog

• In the transect coverage, select the Feature arc tool.
• Then click out an arc (this creates the transect).
• Then select the Select Feature arc tool. Double-clicking on the arc will display the attributes in a dialog.
• The attributes dialog contains an elevation curve and also a permeable structure curve if turned on.
• If the transect arc was created over a scatter set, the curves can automatically be created by right-clicking on the transect coverage, then selecting Extract Elevations. Then select the curve to extract to elevations or permeable structure.

Working with Roughness

The roughness coverage allows you to create different roughness zones defined within polygon boundaries.

• In the roughness coverage, select the Feature arc tool.
• Click out multiple arcs that form a closed region.
• Then select Feature Objects|Build Polygons from the menu.
• Switch to the Select Polygon tool.
• Double-clicking on the created polygon will bring up the Friction Factor dialog allowing the roughness to be specified.

File:CSHORE Friction Factor.jpg

CSHORE Friction Factor dialog

Viewing Transects Profile Plot

Once curves have been established on the transects, you can view the transects profile plot. This is done by:

• Right-click on the transects coverage and select Extract elevations from the right-click menu.
• Right-clicking on Simulation, then selecting View transects profile.

File:CSHORE Transects.jpg

CSHORE Sim Transects profile dialog

Model Parameters

The model parameters can be viewed by:

• Right-clicking on Simulation, then selecting Model Control.

The Model Control" dialog has the following tabs and options:

Computations

File:CSHORE MC Comp.jpg

CSHORE Model Control showing the Computations tab

• Comments
• Moveable buttom
• Limited sediment availability
• Permeable bottom
• Stone
  • Porosity $n_{p}$
  • Nominal diameter
• Wave overtopping
• No standing water
• Wave/current interactions
• Wind effects
• Roller effects
  • Runup wire height
• Constant nodal spacing
• Empirical breaker ratio parameter
• Default bottom friction factor $f_{b}$

Sediment

File:CSHORE MC Sediment.jpg

CSHORE Model Control showing the Sediment tab

• Median diameter
• Fall velocity
• Specific gravity
• Efficiency $e_{b}$
• Efficiency $e_{r}$
• Suspended load parameter a
• Suspended load parameter $a_{o}$
• Limiting(maximium) slope tan
• Bedload parameter

Wave data/Water levels

• Enter wave, surge data together
• Data table
  • Seconds
  • Peak period
  • HRMSBC
  • Wave setup
  • Still water level
  • Angle

File:CSHORE MC Wave Water.jpg

CSHORE Model Control showing the Wave data/Water levels tab

Running the Model

Running the model is accomplished by:

• Right-clicking on Simulation, then selecting Save, Export and Launch CSHORE.
• This writes out the necessary input files for CSHORE in a folder called CSHORE in the same directory as the project.
• The model will run, creating text file output of the CSHORE results.
• Upon exiting the model wrapper dialog, the CSHORE results will be converted into a different format for SMS.

Solution View

To view the Solution View:

• Click on the Plot Wizard located on the bottom toolbar.
• Select CSHORE Solution View.
• Click Next.
• In the dialog there is a mode for Profile and Time series that can be chosen from the combo box on the top left side of the dialog. Time series may not be chosen if wave overtopping and/or moveable bottom are turned off for all of the simulations.
• In Profile mode, the user may select multiple simulations and datasets, along with a single transect and time step.
• In Time series mode, the user may select multiple simulations, datasets, and transects.
• After the options are chosen, the user can hit "Update" in order to see a plot of the data on the right side of the dialog.