Model:Coastal Landscape Transect Model (CoLT)


Coastal Landscape Transect Model (CoLT)


Also known as
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
Extended model description A transect spanning three coastal ecosystems (bay-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. Main geomorphic processes are featured in Kirwan et al. 2016 in GRL, and carbon processes track allochthonous and autocthonous carbon with time and depth.
Name Kendall Valentine
Type of contact Model developer
Institute / Organization University of Washington
Postal address 1
Postal address 2
Town / City Seattle
Postal code 98195
State Washington
Country United States
Email address

Supported platforms
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 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'? 2023
Model availability As code
Source code availability
(Or provide future intension)
Through CSDMS repository
Source web address
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 Sea Level Rise rate (mm/yr), upland slope (unitless), suspended sediment concentration (external supply) (mg/L), length of simulation (years)
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.
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?
Is there a manual available? No
Upload manual if available:
Model website if any
Model forum / discussion board

This part will be filled out by CSDMS staff

OpenMI compliant No not possible
BMI compliant No not possible
WMT component No not possible
PyMT component No not possible
Is this a data component No
DOI model 10.5281/zenodo.7625873
For model version v1.0
Year version submitted 2023
Link to file
Can be coupled with:
Model info
Kendall Valentine

  • Download Coastal Landscape Transect Model (CoLT) version: v1.0
    Doi: 10.5281/zenodo.7625873
Nr. of publications: 1
Total citations: 0
h-index: --"--" is not a number.
m-quotient: 0
Qrcode Coastal Landscape Transect Model (CoLT).png
Link to this page




Nr. of publications: 1
Total citations: 0
h-index: --"--" is not a number.
m-quotient: 0

Featured publication(s)YearModel describedType of ReferenceCitations
Valentine, Kendall; Herbert, Ellen R.; Walters, David C.; Chen, Yaping,; Smith, Alexander J.; and Kirwan, Matthew L.; 2023. csdms-contrib/colt: v1.0 (v1.0). , , 10.5281/zenodo.7625873
(View/edit entry)
2023 Coastal Landscape Transect Model (CoLT)

Source code ref.

See more publications of Coastal Landscape Transect Model (CoLT)



Input Files

Output Files