Model:CellularFanDelta

Contact

Name	Matthew Wolinsky
Type of contact	Model developer
Institute / Organization
Postal address 1
Postal address 2
Town / City	Matthew.Wolinsky@shell.com
Postal code	77001
State	Texas
Country	USA"USA" is not in the list (Afghanistan, Albania, Algeria, Andorra, Angola, Antigua and Barbuda, Argentina, Armenia, Australia, Austria, ...) of allowed values for the "Country" property.
Email address	Matthew.Wolinsky@shell.com
Phone	713-245-8384
Fax

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CellularFanDelta

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Summary Also known as Model type Model part of larger framework Note on status model Date note status model Technical specs Supported platforms Windows Other platform Programming language C++, Matlab Other program language (Programmed as C MEX files called from Matlab. Currently the two languages are intertwined, but could be modularized). Code optimized Multiple processors implemented Nr of distributed processors Nr of shared processors Start year development 2006 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 owner"Through owner" is not in the list (Through web repository, Through CSDMS repository) of allowed values for the "Source code availability" property. Source web address Source csdms web address Program license type GPL v2 Program license type other Memory requirements -- Typical run time hours to days In/Output Describe input parameters Domain dimensions and cell size (regular 2D grid). Initial condition. Locations and rates of sediment and water influxes. Subsidence pattern and rate. Sea level curve. (Presently all boundary conditions are constant, but could vary in space and time in future versions) Input format ASCII Other input format Runs from Matlab command line Describe output parameters Time series of 2D topography/bathymetry and water discharge. 3D stratigraphy grid (currently model is single grain-size, so stratigraphy only stores deposit age) Output format ASCII Other output format 2D grids can be ASCII, but stratigraphy is custom-designed structure stored in Matlab format. Pre-processing software needed? Yes Describe pre-processing software Post-processing and (pre-processing) is through Matlab scripts. Post-processing software needed? Yes Describe post-processing software Post-processing and (pre-processing) is through Matlab scripts. Visualization software needed? Yes If above answer is yes Matlab Other visualization software Process Describe processes represented by the model The key processes are 1) topographically-driven overland flow and 2) bedload transport by this flow. Through these processes the model self-organizes channels which incise, back-fill, and avulse. Processes are similar to alluvial fans. There are no marine processes besides bedload dumping. Describe key physical parameters and equations Topographic slope-weighted multiple flow direction water routing. Stream power transport. Describe length scale and resolution constraints There are two primary constraints: Like most topographically-routed cellular river models, incised channels in the model will always be one cell wide. Hence it should not be applied at scales where the cell size is much less than main channel widths. The model does not really simulate low-Froude low-slope rivers such as most large coastal deltas. However processes are similar to many other codes (e.g. DIONISOS) commonly used for large-scale deltas. If primary questions are about large-scale basin filling on O(10 ka) or longer timescales the model should be fine. However when questions relate to details of sub-millenial geomorphic processes or reservoir-scale stratigraphic architecture, some care must be taken in interpreting model results. Describe time scale and resolution constraints See above. Describe any numerical limitations and issues Numerical limitations and issues: Currently the model runs with a constant timestep, which is limited by the maximum inflow. Future versions may include adaptive time-stepping. As mentioned above, the model channels tend to be one or two cells wide. Future versions may address this issue with some combination of diffusive regularization or multi-scale modeling. Testing 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 Coarse-grained delta experiments without too valley widening, e.g. many XES experiments conducted at the Saint Anthony Falls Laboratory by Paola et al. Other Do you have current or future plans for collaborating with other researchers? Possibly Is there a manual available? No Upload manual if available: Model website if any Model forum / discussion board Comments CellularFanDelta Introduction History Papers CellularFanDelta Questionnaire Contact Information Model: CellularFanDelta Contact person: Matthew Wolinsky (Model developer) Institute: -- City: -- Country: -- Email: -- 2nd person involved: -- 3rd person involved: -- Model Description Model type: Modular model for the terrestrial and coastal domain. Description: 3D cellular model simulating delta evolution in coarse grained river dominated systems (e.g. a gravel fan delta). Technical information Supported platforms: Windows Programming language: C++, Matlab (Programmed as C MEX files called from Matlab. Currently the two languages are intertwined, but could be modularized). Model development started at: 2006 and development still takes place. To what degree will the model become available: Source code will be available Current license type: GPLv2 Memory requirements: -- Typical run time: hours to days Input / Output description Input parameters: Domain dimensions and cell size (regular 2D grid). Initial condition. Locations and rates of sediment and water influxes. Subsidence pattern and rate. Sea level curve. (Presently all boundary conditions are constant, but could vary in space and time in future versions) Input format: ASCII, Runs from Matlab command line Output parameters: Time series of 2D topography/bathymetry and water discharge. 3D stratigraphy grid (currently model is single grain-size, so stratigraphy only stores deposit age) Output format: ASCII, 2D grids can be ASCII, but stratigraphy is custom-designed structure stored in Matlab format. Post-processing software (if needed): yes, Post-processing and (pre-processing) is through Matlab scripts. Visualization software (if needed): Yes, Matlab Process description Processes represented by model: The key processes are 1) topographically-driven overland flow and 2) bedload transport by this flow. Through these processes the model self-organizes channels which incise, back-fill, and avulse. Processes are similar to alluvial fans. There are no marine processes besides bedload dumping. Key physical parameters & equations: Topographic slope-weighted multiple flow direction water routing. Stream power transport. Length scale & resolution constraints: There are two primary constraints: Like most topographically-routed cellular river models, incised channels in the model will always be one cell wide. Hence it should not be applied at scales where the cell size is much less than main channel widths. The model does not really simulate low-Froude low-slope rivers such as most large coastal deltas. However processes are similar to many other codes (e.g. DIONISOS) commonly used for large-scale deltas. If primary questions are about large-scale basin filling on O(10 ka) or longer timescales the model should be fine. However when questions relate to details of sub-millenial geomorphic processes or reservoir-scale stratigraphic architecture, some care must be taken in interpreting model results. Time scale & resolution constraints: See above. Numerical limitations and issues : # Currently the model runs with a constant timestep, which is limited by the maximum inflow. Future versions may include adaptive time-stepping. As mentioned above, the model channels tend to be one or two cells wide. Future versions may address this issue with some combination of diffusive regularization or multi-scale modeling. Testing Available calibration data sets: -- Available test data sets: -- Ideal data for testing: Coarse-grained delta experiments without too valley widening, e.g. many XES experiments conducted at the Saint Anthony Falls Laboratory by Paola et al. User groups Currently or plans for collaborating with: Possibly Documentation Key papers of the model: Will update when I get them written and published! Is there a manual available: No Model website if any: -- Additional comments Comments: -- Issues Help Input Files Output Files Download Source