Model:Barrier3D

Barrier3D

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	2D
Spatial extent	Landscape-Scale, Watershed-Scale, Reach-Scale
Model domain	Coastal, Ecosystems
One-line model description	A spatially explicit model of coastal barrier evolution
Extended model description	Barrier3D is an exploratory model that resolves cross-shore and alongshore topographic variations to simulate the morphological evolution of a barrier segment over time scales of years to centuries. Barrier3D tackles the scale separation between event-based and long-term models by explicitly yet efficiently simulating dune evolution, storm overwash, and a dynamically evolving shoreface in response to individual storm events and sea-level rise. Ecological-geomorphological couplings of the barrier interior can be simulated with a shrub expansion and mortality module.

Keywords:	barrier, coastal, overwash, dunes, ecogemorphology, sea-level rise,

Name	Ian Reeves
Type of contact	Model developer
Institute / Organization	University of North Carolina at Chapel Hill
Postal address 1
Postal address 2
Town / City	Chapel Hill
Postal code	27599
State	North Carolina
Country	United States
Email address	reevesi@live.unc.edu
Phone
Fax

Name	Laura Moore
Type of contact	Project manager
Institute / Organization	University of North Carolina at Chapel Hill
Postal address 1
Postal address 2
Town / City	Chapel Hill
Postal code
State	North Carolina
Country	United States
Email address	laura.moore@unc.edu
Phone
Fax

Name	Katherine Anarde
Type of contact	Model developer
Institute / Organization	University of North Carolina at Chapel Hill, North Carolina State University
Postal address 1
Postal address 2
Town / City
Postal code
State
Country	United States
Email address	kanarde@ncsu.edu
Phone
Fax

Supported platforms	Unix, Linux, Mac OS, Windows
Other platform
Programming language	Python
Other program language
Code optimized	Single Processor
Multiple processors implemented
Nr of distributed processors
Nr of shared processors
Start year development	2019
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'?	2021
Model availability	As code
Source code availability (Or provide future intension)	Through web repository
Source web address	https://github.com/UNC-CECL/Barrier3D
Source csdms web address
Program license type	GPL v3
Program license type other
Memory requirements
Typical run time	Minutes to days

Describe input parameters	1) barrier3d-parameters.yaml: yaml-formatted text file containing initial values for all static and dynamic variables 2) barrier3d-elevation.npy: Initial interior elevation grid 3) barrier3d-storms.npy: Stochastically generated sequence of storms (generated by randomly sampling from a list of synthetic storms) 4) barrier3d-dunes.npy: Initial height of dune cells 5) barrier3d-growthparam.npy: Alongshore varying growth rates for the dune domain If desired, (3-5) can be generated within the model run script to create unique conditions for each run - e.g., instead of using the same storm history by drawing from the a single barrier3d-storms.npy file, a new storm series can be stochastically generated for each run.
Input format
Other input format
Describe output parameters	Barrier elevation grid, cross-shore location of ocean and back-barrier shorelines, dune elevations, overwash flux, shoreface flux, shrub cover
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	- Stochastically generated storm environment - Dune growth and storm erosion - Storm overwash - Sea-level rise - Shoreline change (ocean and back-barrier) - Dynamic shoreface response to sea-level rise, overwash, and dune growth - Interior shrub expansion and mortality
Describe key physical parameters and equations
Describe length scale and resolution constraints	The model operates over a 10-by-10 m grid; the alongshore length of the barrier segment can range from hundreds to thousands of meters.
Describe time scale and resolution constraints	Time step: one year, with multiple storms occurring within each year Duration: years to millennia
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	unc-cecl.github.io/barrier3d/
Model forum / discussion board

Comments

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Can be coupled with:

Model info

Authors

Moore, Anarde

Source code

DOI

Model citations

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Featured publication(s)	Year	Model described	Type of Reference	Citations
Reeves, I. R. B.; Moore, L. J.; Murray, A. B.; Anarde, K. A.; Goldstein, E. B.; 2021. Dune Dynamics Drive Discontinuous Barrier Retreat. Geophysical Research Letters, 48, . 10.1029/2021GL092958 (View/edit entry)	2021	Barrier3D	Model overview	16
See more publications of Barrier3D