A Potential Candidate to Simulate the Tsunami-Induced Coastal

A Potential Candidate to Simulate the Tsunami-Induced Coastal

A Potential Candidate to Simulate the Tsunami-Induced Coastal Flooding: the FVCOM C. Chen1, R. C. Beardsley2 and G. Cowles1 Department of Fisheries Oceanography University of Massachusetts-Dartmouth (UMASSD), New Bedford, MA 02744 1 Department of Physical Oceanography Woods Hole Oceanographic Institution, Woods Hole, MA 02543 2

Website: http://fvcom.smast.umassd.edu E-mail: [email protected]; [email protected]; [email protected] (WHOI) (UMASSD) Critical Issues in Coastal Ocean Modeling Irregular geometry Mass Conservation ?

Steep topography Intertidal wetlands FVCOM: Unstructured-grid, Finite-Volume Coastal Ocean Model (Chen, C. R. H. Liu and R. C. Beardsley, JAOT, 2003) F All variables are computed in the integral form of the equations, which provides a better representation of the conservative laws of mass, momentum

and heat in the coastal region with complex geometry. The numerical computational domain consists of non-overlapping unstructured cells. Combines the best from the finiteelement method for the geometric flexibility and finite difference method for the simplest discrete computation. Both current and tracer remain the second-order accuracy. F

u,v u,v u,v F F F u,v

u,v u,v F F F : , T , S , , H , K m , K h , etc y u,v u,v

u,v u,v For example: The Continuity Equation: : H, , , D , s, , 2, 2l, Am , Kh I : u, v,

(u D ) (v D ) t dxdy = [ x + y ]dxdy = S vn Dds FVCOM Wet/Dry Treatment Technology u, v Nudging Assimilation Ensemble/Reduced Kalman Filters

North Pole Nested System Model Field Sampling Modules of FVCOM Forcings: 3-D Wet/Dry Treatment Tides (Equilibrium+ O.B.)

Winds, Heat flux, Precipitation/Evaporation River discharges, Groundwater O.B. fluxes 3-D Sediment Model FVCOM-Main Code Cartesian/Spherical Coordinates MPI Parallel Surface Wave Model

Auto-grid adjustment Multi OB Radiations ViSiT Monitoring NetCDF Output GUI Post-process Tools Existing Modules

Generalized Biological Model Water Quality Model Adjoint Assimilation Key: General Ocean Turbulence Model (GOTM)

Under Development Lagrangian-IBM Ice model QuickTime and a TIFF (Uncompressed) decompressor are needed to see this picture. The Satilla River, Georgia QuickTime and a

TechSmith EnSharpen decompressor are needed to see this picture. QuickTime and a TechSmith EnSharpen decompressor are needed to see this picture. QuickTime and a BMP decompressor are needed to see this picture. QuickTime and a

BMP decompressor are needed to see this picture. QuickTime and a Microsoft Video 1 decompressor are needed to see this picture. QuickTime and a H.264 decompressor are needed to see this picture. Updated Development Activity

A non-hydrostatic version of FVCOM is developed and being tested for idealized cases A unstructured grid surface wave model (SWAN) is implemented and coded into FVCOM. Summary Non-hydrostatic version of FVCOM with inclusion of the wet/dry point treatment will provide a good tool to simulate and thus forecast Tsunamisinduced water flooding in the coastal region. Develop a tsunamis prediction system on a reliable coastal ocean model will allow us to examine the impact of meteorological and oceanic conditions on the tsunamis-induced coastal waves. Welcome to visit our website:

http://fvcom.smast.umassd.edu

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