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.

The CoastMorpho2D model includes the MarshMorpho2D model (which was previously uploaded on CSDMS)

Name Giulio Mariotti
Type of contact Model developer
Institute / Organization Louisiana State University
Postal address 1
Postal address 2
Town / City Baton Rouge
Postal code 70803
State Louisiana
Country United States
Email address

Supported platforms
Unix, Linux, Mac OS, Windows
Other platform
Programming language


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
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 ( but includes many other coastal processes

This part will be filled out by CSDMS staff

OpenMI compliant
BMI compliant
WMT component
PyMT component
Is this a data component
DOI model 10.5281/zenodo.10563890
For model version Version 4.0
Year version submitted 2024
Link to file
Can be coupled with:
Model info

Nr. of publications: 1
Total citations: 26
h-index: 1
m-quotient: 0.25

Link to this page




Nr. of publications: 1
Total citations: 26
h-index: 1
m-quotient: 0.25

Featured publication(s)YearModel describedType of ReferenceCitations
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

Related theory

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 26
See more publications of CoastMorpho2D



Input Files

Output Files