Model:SWEHR

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SWEHR

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Summary Contact Technical specs In/Output Process Testing Other Component info 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 Watershed-Scale, Reach-Scale, Patch-Scale Model domain Terrestrial, Hydrology One-line model description A coupled model for infiltration, fluid flow, and sediment transport. Extended model description The model couples the shallow water equations with the Green-Ampt infiltration model and the Hairsine-Rose soil erosion model. Fluid flow is also modified through source terms in the momentum equations that account for changes in flow behavior associated with high sediment concentrations. See McGuire et al. (2016, Constraining the rates of raindrop- and flow-driven sediment transport mechanisms in postwildfire environments and implications for recovery timescales) for a complete model description and details on the numerical solution of the governing equations. Keywords: Name Luke McGuire Type of contact Model developer Institute / Organization University of Arizona Postal address 1 1040 E 4th St Postal address 2 Town / City Tucson Postal code 85721 State Arizona Country United States Email address lmcguire@email.arizona.edu Phone Fax Supported platforms Unix, Linux, Mac OS, Windows Other platform Programming language C Other program language Code optimized Single Processor Multiple processors implemented Nr of distributed processors Nr of shared processors Start year development 2014 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 https://github.com/csdms-contrib/swehr Program license type GPL v2 Program license type other Memory requirements Typical run time Can vary from seconds to hours Describe input parameters [[Describe input parameters model::The following parameters need to be specified (in order) in a file called "input.txt": nx – number of grid cells in x direction ny – number of grid cells in y direction dx – grid spacing F – Fraction of stream power effective in entrainment manning0 – minimum manning coefficient tend – end time for simulation a – detachability of original soil ad – redetachability of deposited soil h0 – critical flow depth in HR model mtstar0 – shielding parameter in HR model rnum – number of entries in rainfall input file rint – time interval (in seconds) associated with each rainfall intensity in the rainfall input file sclass – number of particle size classes Jentrain – energy expended entraining a unit mass of cohesive sediment Other required input files: rain.txt: A file containing rainfall intensity in [m]/[s]. The file should contain "rnum" entries. The time interval associated with each rainfall intensity should be specified as "rint" in the input.txt file. topoin.txt: elevation data for each point in the grid particlepercentin.txt: A vector containing K entries that specify the percentage of soil consisting of sediment in each of the K particle size classes particlesizein.txt: A vector containing K entries that specify the representative particle diameter associated with each of the K particle size classes]] Input format ASCII Other input format Describe output parameters The code outputs the following text files: “topoout.txt” – elevation for each grid point at the end of the simulation “depth.txt” – flow depth at each grid point at the end of the simulation “uh.txt” – value of conserved variable UH at each grid point “vh.txt” – value of conserved variable VH at each grid point “ch.txt” – value of conserved variable CH at each grid point “m.txt” – mass of sediment in the deposited layer at each grid point “c.txt” – sediment concentration at each grid point “vel.txt” – flow velocity at each grid point “stage.txt” – time series data (time (s), flow depth, flow velocity, and sediment concentration) at the outlet pixel “maxvel.txt” – maximum flow velocity recorded at each grid point throughout the simulation “maxdepth.txt” -- maximum flow depth recorded at each grid point throughout the simulation “saveflow.txt” – time series data (flow depth, flow velocity, sediment concentration) at user specified grid points “topomovie.txt” – elevation data at different times throughout the simulation (specified in the code by “printinterval”) “depthmovie.txt” – flow depth at different times throughout the simulation “velocitymovie.txt” – flow velocity at different times throughout the simulation “cmovie.txt” – sediment concentration at different times throughout the simulation “Mmovie.txt” – mass of sediment in the deposited layer at different times throughout the simulation Output format ASCII 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 The model simulates infiltration, fluid flow, and sediment transport. Fluid behavior is influenced by sediment concentration. Describe key physical parameters and equations The model couples the shallow water equations with the Green-Ampt infiltration model and the Hairsine-Rose soil erosion model. Fluid flow is also modified through source terms in the momentum equations that account for changes in flow behavior associated with high sediment concentrations. See McGuire et al. (2016, Constraining the rates of raindrop- and flow-driven sediment transport mechanisms in postwildfire environments and implications for recovery timescales) for a complete model description and details on the numerical solution of the governing equations. Describe length scale and resolution constraints The model is designed to be used at the watershed scale or smaller. Describe time scale and resolution constraints The model is ideal for simulating sediment transport in response to a single rainstorm. Describe any numerical limitations and issues The Courant number must be less than 1 at all times to maintain stability. 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 Comments This part will be filled out by CSDMS staff OpenMI compliant No but possible BMI compliant No but possible WMT component No but possible PyMT component Is this a data component Can be coupled with:

Model info Authors Luke McGuire Source code View in CSDMS GitHub repository DOI Download SWEHR version: 1.0 Doi: 10.5281/zenodo.824087 Model citations Nr. of publications: 2 Total citations: 35 h-index: 1 m-quotient: 0.1 QR-code Link to this page Other models by author KWAVE SWEHR

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Nr. of publications:	2
Total citations:	35
h-index:	1
m-quotient:	0.1

Publication(s)	Year	Type	Cited
. . , , . [[| (View/edit entry)]]		SWEHR	Model overview	Template:SEM 2553165367
. . , , . [[| (View/edit entry)]]		SWEHR	Source code ref.	0