Model:Cross Shore Sediment Flux: Difference between revisions

Revision as of 10:46, 31 October 2016

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Model type	Single
Model part of larger framework
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Incorporated models or components:

Spatial dimensions	1D
Spatial extent	Landscape-Scale
Model domain
One-line model description	Cross-Shore Sediment Flux Equations
Extended model description	The Cross-Shore Sediment Flux model addresses predominately sandy, wave-dominated coastlines on time-scales ranging from years to millenia and on spatial scales ranging from kilometers to tens of kilometers using a range of wave parameters as inputs. It calculates the cross-shore sediment flux using both shallow water wave assumptions and full Linear Airy wave Theory. An equilibrium profile is also created. Using the Exner equation, we develop an advection diffusion equation that describes the evolution of profile through time. A morphodynamic depth of closure can be estimated for each input wave parameter.

Keywords:	coastal sediment transport, coastal evolution,

Name	Alejandra Ortiz
Type of contact	Model developer
Institute / Organization	Woods Hole Oceanographic Institution
Postal address 1
Postal address 2
Town / City	Woods Hole
Postal code	02543
State	Massachusetts
Country	United States
Email address	aortiz@whoi.edu
Phone
Fax

Supported platforms	Linux, Mac OS, Windows
Other platform
Programming language	Matlab
Other program language
Code optimized	Single Processor
Multiple processors implemented
Nr of distributed processors
Nr of shared processors
Start year development
Does model development still take place?	No
If above answer is no, provide end year model development
Code development status
When did you indicate the 'code development status'?
Model availability	As code
Source code availability (Or provide future intension)	Through CSDMS repository
Source web address
Source csdms web address	https://github.com/csdms-contrib/Cross_Shore_Sediment_Flux
Program license type	GPL v2
Program license type other
Memory requirements
Typical run time

Describe input parameters	You can vary the initial slope, wave periods, wave heights, and sediment fall velocity (a proxy for sediment size).
Input format
Other input format
Describe output parameters	It outputs all the variables used in the advection-diffusion equation describing bed evolution for both shallow water wave assumptions (all labeled as _s) and linear theory (labeled as _lh).
Output format
Other output format
Pre-processing software needed?	No
Describe pre-processing software
Post-processing software needed?	No
Describe post-processing software
Visualization software needed?	No
If above answer is yes
Other visualization software

Describe processes represented by the model	Using energetics-based formulations for wave-driven sediment transport, we develop a robust methodology for estimating the morphodynamic evolution of a cross-shore sandy coastal profile. The wave-driven cross-shore sediment flux depends on three components: two onshore-directed terms (wave asymmetry and wave streaming) and an offshore-directed slope term. The cross-shore sediment transport formulation defines a dynamic equilibrium profile and, by perturbing about this steady-state profile, we present an advection-diffusion formula for profile evolution. Morphodynamic Péclet analysis suggests that the shoreface is diffusionally dominated. Using this depth-dependent characteristic diffusivity timescale, we distinguish a morphodynamic depth of closure for a given time envelope. Even though wave-driven sediment transport can (and will) occur at deeper depths, the rate of morphologic bed changes in response to shoreline change becomes increasingly slow below this morphodynamic closure depth.
Describe key physical parameters and equations
Describe length scale and resolution constraints
Describe time scale and resolution constraints
Describe any numerical limitations and issues

Describe available calibration data sets
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Describe ideal data for testing

Do you have current or future plans for collaborating with other researchers?

Is there a manual available?	No
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Model website if any
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Comments

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OpenMI compliant	Not yet"Not yet" is not in the list (Yes, No but planned, No but possible, No not possible) of allowed values for the "Code openmi compliant or not" property.
BMI compliant	Not yet"Not yet" is not in the list (Yes, No but planned, No but possible, No not possible) of allowed values for the "Code IRF or not" property.
WMT component	Not yet"Not yet" is not in the list (Yes, In progress, No but possible, No not possible) of allowed values for the "Code CMT compliant or not" property.
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