Now showing items 4-16 of 16

    • Developing a Warning System for Inbound Tsunamis from the Cascadia Subduction Zone 

      LeVeque, Randall J; Bodin, Paul; Cram, Geoffrey; Crowell, Brendan W.; Gonzalez, Frank I.; Harrington, Michael; Mannalang, Dana; Melgar, Diego; Schmidt, David A.; Vidale, John E.; Vogl, Christopher J.; Wilcock, William S. (2018-01-07)
      Real-time tsunami warning in the nearfield is considerably more difficult than producing warnings for distant events. Although in some cases strong shaking will provide the only warning, there are several situations in ...
    • Finite volume methods and adaptive refinement for global tsunami propagation and local inundation 

      George, David L.; LeVeque, Randall J (2006)
      The shallow water equations are a commonly accepted approximation governing tsunami propagation. Numerically capturing certain features of local tsunami inundation requires solving these equations in their physically ...
    • GeoClaw Model Tsunamis Compared to Tide Gauge Results Final Report 

      Adams, Loyce M.; LeVeque, Randall J (2018-11-03)
      The purpose of this project is to compare GeoClaw tsunami model results to detided tide gauge results at multiple destinations for each of several tsunamis. In particular, we are interested in the suitability of GeoClaw ...
    • High-resolution finite volume methods for dusty gas jets and plumes 

      Pelanti, Marcia; LeVeque, Randall J (2006)
      We consider a model for dusty gas flow that consists of the compressible Euler equations for the gas coupled to a similar (but pressureless) system of equations for the mass, momentum, and energy of the dust. These sets ...
    • High-resolution rotated grid method for conservation laws with embedded geometries 

      Helzel, Christiane, 1971-; Berger, Marsha J.; LeVeque, Randall J (2005)
      We develop a second-order rotated grid method for the approximation of time dependent solutions of conservation laws in complex geometry using an underlying Cartesian grid. Stability for time steps adequate for the ...
    • Issues Encountered with ASCE Compatibility Criteria 

      Adams, Loyce; Gonzalez, Frank; LeVeque, Randall J (2019-05)
      The State of Washington is assisting at-risk coastal communities that have included the design and construction of tsunami vertical evacuation structures in their hazard mitigation plans. Washington State has not formally ...
    • Probabilistic Source Selection for the Cascadia Subduction Zone 

      Adams, Loyce; LeVeque, Randall J; Rim, Donsub; Gonzalez, Frank I (2017-03-19)
      This report has been submitted to FEMA Region IX as a final project report for a project on developing new methodologies for Probabilistic Tsunami Hazard Assessment (PTHA). We propose a methodology for taking a large number ...
    • Probabilistic Tsunami Hazard Assessment (PTHA) for Crescent City, CA. Final Report for Phase I 

      Gonzalez, Frank I.; LeVeque, Randall J; Adams, Loyce M. (University of Washington Department of Applied Mathmatics, 2013-02-02)
      This demonstration Probabilistic Tsunami Hazard Assessment (PTHA) study of Crescent City, California was funded by BakerAECOM and motivated by FEMA's desire to explore methods to improve products of the FEMA Risk Mapping, ...
    • Tsunami Hazard Assessment of the Strait of Juan de Fuca 

      Gonzalez, Frank I.; LeVeque, Randall J; Adams, Loyce M. (2015-09-24)
      This report documents the results of a study supported by the Washington State Emergency Management Division of the tsunami hazard along the Strait of Juan de Fuca. Results include inundation depths and times of arrival ...
    • Tsunami Hazard Assessment of Whatcom County, Washington. Project Report - Version 2 

      Adams, Loyce; LeVeque, Randall J; Gonzalez, Frank (2019-05-19)
      This report documents the results of a study supported by the Washington State Emergency Management Division of the tsunami hazard along the coast of Whatcom County. One earthquake source from the Seattle Fault and one ...
    • A wave propagation algorithm for hyperbolic systems on curved manifolds 

      Rossmanith, James A.; Bale, Derek S.; LeVeque, Randall J (Elsevier, 2004-09-20)
      An extension of the wave propagation algorithm first introduced by LeVeque [J. Comput. Phys. 131 (1997) 327] is developed for hyperbolic systems on a general curved manifold. This extension is important in a variety of ...
    • A Wave Propagation Method for Conservation Laws and Balance Laws with Spatially Varying Flux Functions 

      LeVeque, Randall J; Bale, Derek S.; Mitran, Sorin; Rossmanith, James A. (Society for Industrial and Applied Mathematics, 2002)
      We study a general approach to solving conservation laws of the form qt+f(q,x)x=0, where the flux function f(q,x) has explicit spatial variation. Finite-volume methods are used in which the flux is discretized spatially, ...
    • A wave propagation method for three-dimensional hyperbolic conservation laws 

      Langseth, Jan Olav; LeVeque, Randall J (Elsevier, 2000-11-20)
      A class of wave propagation algorithms for three-dimensional conservation laws and other hyperbolic systems is developed. These unsplit finite-volume methods are based on solving one-dimensional Riemann problems at the ...