Model:CoastMorpho2D

CoastMorpho2D

Also known as	CM2D
Model type	Tool
Model part of larger framework
Note on status model
Date note status model

Incorporated models or components:

Spatial dimensions	2D, 3D
Spatial extent	Landscape-Scale
Model domain	Coastal
One-line model description	Long term 2D morphodynamics of coastal areas
Extended model description	Long term 2D morphodynamics of coastal areas, including tidal currents, wind waves, swell waves, storm surge, sand, mud, marsh vegetation, edge erosion, marsh ponding, and stratigraphy. CoastMorpho2D was used to produce Fig. 8A of Mariotti and Canestrelli (2026). The CoastMorpho2D model includes the MarshMorpho2D model (which was previously uploaded on CSDMS).

Keywords:

Supported platforms	Unix, 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?	Yes
If above answer is no, provide end year model development
Code development status	Active
When did you indicate the 'code development status'?	2020
Model availability	As code
Source code availability (Or provide future intension)	Through web repository
Source web address	https://github.com/csdms-contrib/CoastMorpho2D
Source csdms web address
Program license type	GPL v3
Program license type other
Memory requirements
Typical run time	1 hr

Describe input parameters	Initial bathymetry Boundary conditions Time series of waves, wind, storm surges Various hydrodynamics and sedimentary parameters
Input format
Other input format
Describe output parameters
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	Tidal currents Sea waves Swell waves Storm surges Tidal dispersion transport Along-wave transport Downslope transport by currents, swell waves, breaking waves, and sea waves Edge erosion Marsh processes Along-shore transport by radiation stresses
Describe key physical parameters and equations	See -G Mariotti, S Murshid, 2018, A 2D Tide-Averaged Model for the Long-Term Evolution of an Idealized Tidal Basin-Inlet-Delta System, Journal of Marine Science and Engineering 6 (4), 154 -G Mariotti, 2020, Beyond marsh drowning: The many faces of marsh loss (and gain) Advances in Water Resources, 103710
Describe length scale and resolution constraints	Spatial resolution from 1 m to 1 km Spatial extent up to hundreds of km
Describe time scale and resolution constraints	Morphological time steps can be on the order of years Time steps shorter than one tidal period are not realistic
Describe any numerical limitations and issues	Most of the heavy lifting algorithms are implicit, thus numerically stable

Describe available calibration data sets
Upload calibration data sets if available:
Describe available test data sets
Upload test data sets if available:
Describe ideal data for testing

Do you have current or future plans for collaborating with other researchers?	I am currently working on several new developments, and I am open to new collaborations

Is there a manual available?	Yes
Upload manual if available:	Media:CM2D referencework equations.pdf
Model website if any
Model forum / discussion board

Comments	The CoastMorpho2D model encompasses the MarshMorpho2D v2.0 (https://csdms.colorado.edu/wiki/Model:MarshMorpho2D) but includes many other coastal processes

This part will be filled out by CSDMS staff

Can be coupled with:

Model info

Authors

Source code

DOI

Model citations

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Other models by author

Delta simulation, with only river flow and sand. Comparision with different values of downslope transport (u) and bank erosion (B)

Top panel: bed eleveation map. Middle panel: profiles of bed elevation. Lower panel: profiles of water velocity

Featured publication(s)	Year	Model described	Type of Reference	Citations
Mariotti, Giulio; Murshid, Shamim; 2018. A 2D Tide-Averaged Model for the Long-Term Evolution of an Idealized Tidal Basin-Inlet-Delta System. Journal of Marine Science and Engineering, 6, 154. 10.3390/jmse6040154 (View/edit entry)	2018	CoastMorpho2D Delft3D MarshMorpho2D	Related theory	12
Mariotti, G.; 2020. Beyond marsh drowning: The many faces of marsh loss (and gain). Advances in Water Resources, 144, 103710. 10.1016/j.advwatres.2020.103710 (View/edit entry)	2020	CoastMorpho2D	Model overview	51
Mariotti, G.; Canestrelli, A.; 2026. Three ingredients for numerically efficient 2D river and delta morphodynamic modeling. TBD, , . (View/edit entry)	2026	CoastMorpho2D	Model application	0
See more publications of CoastMorpho2D