Model help:Waves
Waves
WAVES controls the wave climate input to the CEM longshore transport module (CEM).
Introduction
WAVES is an essential part of the original CEM model (Ashton et al., 200??) that has been componentized to consist of two separate components; the longshore transport component CEM and the wave component WAVES.
The original model was designed to investigate an instability in the shape of a coastline caused by waves approaching with ‘high’ angles (with the angle between deepwater crests and the coast > 45 degrees).
WAVES describes a simplified directional wave climate by two main input parameters: the asymmetry of the incoming waves angle and the proportion of high-angle waves. This model is not designed to accurately simulate a specific geographic location in detail but rather to more generally represent how a shoreline with highly mobile sediment may respond to varying wave angles. The value in this model is in the breadth it offers in representing how different wave climates can result in different potentially interesting shoreline configurations.
Model input parameters
Run parameters
All wave parameters are the far-field, incoming wave characteristics, assumed to be deep-water values.
H | incoming wave height | m |
P | incoming wave period' | s |
A | asymmetry of the incoming wave field' | [0-1] |
U | proportion of high angle, unstable waves' | [0-1] |
The variable A controls the directional distribution of waves, representing the fraction of waves approaching from the left or right, from the perspective of a person looking out to sea. It is designated to be a value between 0 and 1. A designation of greater than 0.5 indicates that the majority of wave energy is approaching from the left where a designation of 1.0 indicates all wave energy approaches from the left. A designation of 0.5 indicates wave energy approach is evenly distributed between the left and right. A designation of less than 0.5 indicates the majority of wave energy is approaching from the right where a designation of 0 indicates all wave energy approaches from the right
The variable U controls the general directional spread of the approaching waves, here split into whether waves approach from angles great than or less than the one which maximized alongshore sediment transport (approximately 45 degrees). High-angle waves approach with angles greater than 45 degrees and low-angle waves approach more directly onshore. (Note that in both cases, the angles of the breaking waves are typically significantly lower.)
Model output parameters
output variable1 | variable description1 | variable units1 |
variable2 | description2 | units2 |
Coupling parameters
Uses ports
This will be something that the CSDMS facility will add
Provides ports
This will be something that the CSDMS facility will add
Main equations
A list of the key equations. HTML format is supported; latex format will be supported in the future
Numerical scheme
Output variable
Notes
Any notes, comments, you want to share with the user
Examples
An example run with input parameters as well as a figure / movie of the output
Follow the next steps to include images / movies of simulations:
- Upload file: http://csdms.colorado.edu/wiki/Special:Upload
- Create link to the file on your page: [[Image:<file name>]].
See also: Help:Images or Help:Movies
Developer(s)
Name of the module developer(s)
References
Key papers
External links
Any link, eg. to the model questionnaire, the e-book that is on the CSDMS web, Gary Parkers website....