Model:COLT Restorations

COLT Restorations

Also known as	COLT v2.0 (following CoLT v1.0 at https://csdms.colorado.edu/wiki/Model:Coastal_Landscape_Transect_Model_(CoLT))
Model type	Single
Model part of larger framework
Note on status model
Date note status model

Incorporated models or components:

Spatial dimensions	1D
Spatial extent	Landscape-Scale
Model domain	Coastal, Ecosystems
One-line model description	Geomorphic and carbon evolution of a bay-marsh-forest coastal transect with restorations
Extended model description	A transect spanning three coastal ecosystems (bay-salt marsh-forest) evolves in yearly timesteps to show the evolution of the system. Geomorphic and carbon cycling processes allow for the exchange of material between the adjacent ecosystems. Each landscape unit is on the order of kilometers. Salt marsh restorations including sediment nourishment and shoreline stabilization can be turned on or off and modify geomorphic and carbon processes. Main geomorphic processes are featured in Kirwan et al. (2016) in Geophysical Research Letters, and carbon processes that track allochthonous and autochthonous carbon with time and depth are featured in Valentine et al. (2023) in Nature Communications.

Keywords:	coastal ecosystems,

Name	Mary Bryan Barksdale
Type of contact	Model developer
Institute / Organization	William & Mary’s Batten School of Coastal & Marine Sciences at the Virginia Institute of Marine Science
Postal address 1
Postal address 2
Town / City	Gloucester Point
Postal code	23062
State	Virginia
Country	United States
Email address	mbarksdale@vims.edu
Phone
Fax

Supported platforms	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	2020
Does model development still take place?	Yes
If above answer is no, provide end year model development
Code development status	As is, no updates are provided
When did you indicate the 'code development status'?	2024
Model availability	As code
Source code availability (Or provide future intension)	Through web repository
Source web address	https://github.com/mbbarksdale/CoLT_Restorations
Source csdms web address
Program license type	GPL v3
Program license type other
Memory requirements
Typical run time	Full model - 0.5-1 hr for a 100 year model run on a standard desktop computer

Describe input parameters	Initial rate of sea-level rise at start of spinup (mm/yr); rate of sea-level rise at end of spinup/start of model run (mm/yr); upland slope (m/m); suspended sediment concentration (external supply) (mg/L); length of simulation (years); rate of sea-level rise acceleration (mm/yr/yr); sill on (yes or no); percent of sediment settling behind sill (%); delay in sill placement (years); thin-layer placement on (yes or no); thin-layer placement thickness after consolidation (cm); thin-layer placement frequency (years); delay in thin-layer placement (years); erosion coefficient, Ke (dimensionless)
Input format
Other input format	Excel spreadsheet
Describe output parameters	organic (allochthonous and autochthonous) and mineral deposition, bay extent, forest extent, marsh extent are the primary outputs
Output format
Other output format	.mat files
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	Bay, marsh, and forest evolution on a coastline. Simulates marsh edge erosion, bay depth changes with wind waves, and marsh migration into coastal forests, and the carbon processes associated with these changes. Restorations, when turned on, modify erosion and accretion processes and subsequent carbon storage/decomposition.
Describe key physical parameters and equations
Describe length scale and resolution constraints	Transect model with landscape of ~10 km (5 km bay, 1 km marsh, and 4 km forest in base version), 1 m grid scale horizontally.
Describe time scale and resolution constraints	1 year time steps, good results up to 200-300 years
Describe any numerical limitations and issues

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?	No

Is there a manual available?	Yes
Upload manual if available:	Media:README COLT-Restorations Model User Guide.pdf
Model website if any
Model forum / discussion board

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Featured publication(s)	Year	Model described	Type of Reference	Citations
Kirwan, M.L.; Walters, D.C.; Reay, W.G.; Carr, J.A.; 2016. Sea level driven marsh expansion in a coupled model of marsh erosion and migration. Geophysical Research Letters, 43, 4366-4373. 10.1002/2016GL068507 (View/edit entry)	2016	COLT Restorations Coastal Landscape Transect Model (CoLT)	Related theory	185
See more publications of COLT Restorations