Model:GEOMBEST-Plus

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GEOMBEST-Plus

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Summary Contact Technical specs In/Output Process Testing Other Component info Also known as Model type Tool Model part of larger framework Note on status model Date note status model Incorporated models or components: Spatial dimensions 2D Spatial extent Model domain One-line model description 2D cross-shore geomorphological model of barrier island and marsh response to sea level rise. Extended model description “GEOMBEST+” (Geomorphic Model of Barrier, Estuarine, and Shoreface Translations) is a new morphological-behaviour model that simulates the evolution of coastal morphology and stratigraphy, resulting from changes in sea level, and sediment volume within the shoreface, barrier and estuary. GEOMBEST+ differs from other large-scale behaviour models (e.g. Bruun, 1962; Dean and Maumeyer, 1983; Cowell et al., 1995; Niedoroda et al., 1995, Stive & de Vriend, 1995 and Storms et al., 2002) by relaxing the assumption that the initial substrate (i.e stratigraphy) is comprised of an unlimited supply of unconsolidated material (typically sand). The substrate is instead defined by distinct stratigraphic units characterized by their erodibility and sediment composition. Additionally, GEOMBEST+ differs from its predecessor (GEOMBEST) by adding in a dynamic stratigraphic unit for a backbarrier marsh. Accordingly, the effects of geological framework on morphological evolution and shoreline translation can be simulated. Keywords: overwash, sea level rise, barrier island, marsh, Name David Walters Type of contact Model developer Institute / Organization Virginia Institute of Marine Science Postal address 1 1375 Greate Road Postal address 2 Town / City Gloucester Point Postal code 23062 State Virginia Country United States Email address dcwalters@vims.edu Phone Fax Name Laura Moore Type of contact Model developer Institute / Organization University of North Carolina - 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 Supported platforms Windows Other platform Programming language Matlab Other program language Code optimized Multiple processors implemented Nr of distributed processors Nr of shared processors Start year development 2013 Does model development still take place? Yes If above answer is no, provide end year model development Code development status When did you indicate the 'code development status'? 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 v2 Program license type other Memory requirements 350 KB Typical run time 5 years model time per second Describe input parameters Description: Note: See also the GEOMBEST+ Users Guide, section 6 A minimum of four excel files are required to run a GEOMBEST+ simulation: an “erosionresponse” file, an “accretionresponse” file, a “run#” file, and a “tract#” file. If the simulation involves a single coastal tract then the files must be titled “erosionresponse”, “accretionreponse”, “run1” file and “tract1.” Quasi-3D simulations require additional files with sequential numbers. For example a simulation involving 3 tracts within a littoral cell also requires a “run2” and “run3” file as well as a “tract2” and “tract3” file. These files must conform to the strict format outlined in the following sections. If you are running multiple simulations of the same tract, you can use the multiple input and output files to keep track of your simulations. Caution: Note that the run# and tract# files will have the same name (tract1, run1, etc., see below) for all simulations and so attention to organization is critical. We suggest noting the changes made in each simulation in a readme file and then moving this file, as well as the input and output folders for each simulation, to a unique folder having an identifying name. Our convention, for example, has been to name each run with using the date and run number on that date as the identifier, e.g., the first simulation run on February 20, 2010 would be titled 02_20_10_01and would be placed in a folder having this name. 6.1: “erosionresponse” file 6.2: “accretionresponse” file 6.3: “run#” file 6.4: “tract#” file Input format Other input format excel Describe output parameters Output parameters: Marsh boundary - gives the position of the backbarrier marsh edge through time Shorelines - gives the position of the barrier shoreline through time step number - saves the surface morphology and stratigraphy for the model at each time step Output format Other output format MAT-file 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 Processes represented: Note: See also the GEOMBEST+ Users Guide, section 4 4.1 Equilibrium profile 4.2: Sea Level Change 4.3: Initial Morphology/Stratigraphy 4.4: Depth-Dependant Shoreface Response Rate 4.5: Backbarrier Deposition 4.6: Bay and Marsh Infilling Describe key physical parameters and equations Describe length scale and resolution constraints Constraints: Cell length - 10 - 100 meters Cell height - 0.01 - 0.5 meters Describe time scale and resolution constraints Constraints: Time step - 1 - 50 years Duration - Hundreds to thousands of years Describe any numerical limitations and issues Describe available calibration data sets Upload calibration data sets if available: Describe available test data sets Sample input files used to create plots shown in manual. Upload test data sets if available: Media:Accretionresponse.xlsx, Media:Erosionresponse.xlsx, Media:Tract1.xlsx, Media:Run1.xlsx Describe ideal data for testing Do you have current or future plans for collaborating with other researchers? Is there a manual available? Yes Upload manual if available: Media:Geombest+ Users Guide.doc Model website if any Model forum / discussion board Comments This part will be filled out by CSDMS staff OpenMI compliant No not possible BMI compliant No not possible WMT component Not yet"Not yet" is not in the list (Yes, In progress, No but possible, No not possible) of allowed values for the "Code CMT compliant or not" property. PyMT component Is this a data component Can be coupled with:

Model info Authors David Walters Moore, Duran, Fagherazzi, Mariotti Source code View in CSDMS GitHub repository DOI Download GEOMBEST-Plus version: 1.0 Doi: 10.5281/zenodo.16687 Model citations Nr. of publications: 1 Total citations: 0 h-index: --"--" is not a number. m-quotient: 0 QR-code Link to this page Other models by author GEOMBEST-Plus

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