Model:GeoClaw

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GeoClaw

This code has been community reviewed and published in the open access Journal of Open Source Software (JOSS)

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Summary Contact Technical specs In/Output Process Testing Other Component info Also known as Clawpack Model type Single Model part of larger framework Note on status model Date note status model Incorporated models or components: Spatial dimensions 1D, 2D Spatial extent Global, Continental, Regional-Scale, Landscape-Scale, Watershed-Scale, Reach-Scale, Patch-Scale Model domain One-line model description Depth-averaged fluid dynamics for modeling geophysical flows and wave propagation Extended model description Originally developed for modeling tsunami generation, propagation, and inundation. Also used for storm surge modeling and overland flooding (e.g. dam break problems). Uses adaptive mesh refinement to allow much greater spatial resolutions in some regions than others, and to automatically follow dynamic evolution of waves or floods. Uses high-resolution finite volume methods that robustly handle wetting and drying. The package also includes tools for working with geophysical data including topography DEMs, earthquake source models for tsunami generation, and observed gauge data. The simulation code is in Fortran with OpenMP for shared memory parallelization, and Python for the user interface, visualization, and data tools. Keywords: Shallow-water model, Tsunami, storm wave, Name Randall LeVeque Type of contact Model developer Institute / Organization University of Washington Postal address 1 Applied Mathematics Dept, Univ. of Washington Postal address 2 Box 353925 University of Washington Town / City Seattle Postal code 98195-3925 State Washington Country United States Email address rjl@uw.edu Phone 206-685-3037 Fax Supported platforms Unix, Linux, Mac OS Other platform Programming language Fortran77, Fortran90, Python Other program language Code optimized Multiple Processors Multiple processors implemented Shared memory Nr of distributed processors Nr of shared processors Start year development 1994 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, As teaching tool Source code availability (Or provide future intension) Through web repository Source web address http://www.clawpack.org/installing.html Source csdms web address Program license type BSD or MIT X11 Program license type other Memory requirements Typical run time seconds to hours Describe input parameters http://www.clawpack.org/setrun_geoclaw.html http://www.clawpack.org/topo.html Input format ASCII Other input format Describe output parameters Depth, momentum on adaptive grid at specified output times. Time series at specified gauge locations. Maxima observed over full simulation on specified grid. Output format ASCII, Binary 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 Two-dimensional depth-averaged flows, particularly suitable for tsunami and storm surge modeling, and has also bee used for dam breaks and flooding of river valleys. Describe key physical parameters and equations Nonlinear shallow water equations in conservation form are solved, with a Manning coefficient used to specify bottom friction. Coriolis terms can also be turned on. Multi-layer shallow water equations are also implemented. Equations can be solved in latitude-longitude coordinates on the sphere or in Cartesian coordinates, e.g. for limited-area or wave tank modeling. Wetting and drying algorithms handle inundation. Describe length scale and resolution constraints Adaptive refinement allows using a very coarse grid on the ocean scale (e.g. 2 degree resolution) and several nested levels of refinement down to e.g. 1/3 arc-second (10 meter) resolution in specific coastal regions. Describe time scale and resolution constraints Time steps are limited by CFL condition based on depth of fluid. Finer grids can automatically refine to use finer resolution in time than the underlying coarse grids. Describe any numerical limitations and issues Currently only shallow water equations are solved, using explicit finite volume methods. High order Boussinesq equations to better model dispersive waves (e.g. for short wavelength submarine landslide generated tsunamis) would require implicit time stepping and is still in the experimental phase. Describe available calibration data sets Upload calibration data sets if available: Describe available test data sets http://www.clawpack.org/gallery/gallery_geoclaw.html Upload test data sets if available: Describe ideal data for testing Do you have current or future plans for collaborating with other researchers? We welcome collaboration and have many on-going projects. Is there a manual available? Yes Upload manual if available: Model website if any http://www.clawpack.org/ Model forum / discussion board https://groups.google.com/forum/#!forum/claw-users http://www.clawpack.org/community.html 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 Randall LeVeque Source code Go to external source code site Model citations Nr. of publications: 40 Total citations: 1216 h-index: 15 m-quotient: 0.88 QR-code Link to this page Other models by author GeoClaw

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Nr. of publications:	40
Total citations:	1216
h-index:	15
m-quotient:	0.88

Publication(s)	Year	Type	Cited
. . , , . [[| (View/edit entry)]]		GeoClaw	Model overview	Template:SEM 2131592052
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