Download or read book Long wave Runup Models Proceedings Of The International Workshop written by Harry H Yeh and published by World Scientific. This book was released on 1997-05-05 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since September 1992, there has been an unprecedented number of major tsunami events. Chronologically, the ten sites were: Nicaragua, in September 1992; Flores, Indonesia, in December 1992; Okushiri, Japan, in July 1993; East Java, Indonesia, in June 1994; Shikotan, Russia, in October 1994; Mindoro, Philippines, in November 1994; Skagway, Alaska, in November 1994; East Timor, Indonesia, in May 1995; Irian Jaya, Indonesia, in February 1996; Chimbote, Peru, in February 1996. These tsunamis caused substantial damage and many casualties. Now is the time to review this extraordinary phenomenon so as to prepare for forthcoming tsunami events.The purpose of this book is to review and update our knowledge of long-wave runups and our recent experience in field surveys of tsunami runups. Comparisons of numerical, analytical, and physical prediction models are made using existing laboratory and field data. Also presented are state-of-the-art tsunami prediction models and detailed discussions on tsunami runup phenomena.
Download or read book Long wave Runup Models written by Philip L. F. Liu and published by World Scientific. This book was released on 1996 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Long wave Runup Models written by Harry Hsiu-jen Yeh and published by World Scientific Publishing Company Incorporated. This book was released on 1996 with total page 403 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Numerical Modeling of Long Wave Runup written by Vasily V. Titov and published by . This book was released on 1997 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advanced Numerical Models for Simulating Tsunami Waves and Runup written by Philip L. F. Liu and published by World Scientific. This book was released on 2008 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a brief review of the theoretical background for depth-integrated wave equations, which are employed to simulate tsunami runup. This work also describes high-resolution finite volume methods for solving the nonlinear shallow water equations. It focuses on the applications of these methods to tsunami runup.
Download or read book Long Wave Runup on a Sloping Beach Validation of a Lagrangian Numerical Model written by Louis-Alexandre Couston and published by . This book was released on 2013 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Runup of Long Waves written by Constantine Emmanuel Synolakis and published by . This book was released on 1987 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Variability In Long Wave Runup as a Function of Nearshore Bathymetric Features written by and published by . This book was released on 2010 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beaches and barrier islands are vulnerable to extreme storm events, such as hurricanes, that can cause severe erosion and overwash to the system. Having dunes and a wide beach in front of coastal infrastructure can provide protection during a storm, but the influence that nearshore bathymetric features have in protecting the beach and barrier island system is not completely understood. The spatial variation in nearshore features, such as sand bars and beach cusps, can alter nearshore hydrodynamics, including wave setup and runup. The influence of bathymetric features on long-wave runup can be used in evaluating the vulnerability of coastal regions to erosion and dune overtopping, evaluating the changing morphology, and implementing plans to protect infrastructure. In this thesis, long-wave runup variation due to changing bathymetric features as determined with the numerical model XBeach is quantified (eXtreme Beach behavior model). Wave heights are analyzed to determine the energy through the surfzone. XBeach assumes that coastal erosion at the land-sea interface is dominated by bound long-wave processes. Several hydrodynamic conditions are used to force the numerical model. The XBeach simulation results suggest that bathymetric irregularity induces significant changes in the extreme long-wave runup at the beach and the energy indicator through the surfzone.
Download or read book Handbook of Coastal and Ocean Engineering written by Kim Young C and published by World Scientific. This book was released on 1998-05-13 with total page 1776 pages. Available in PDF, EPUB and Kindle. Book excerpt: The handbook contains a comprehensive compilation of topics that are at the forefront of many of the technical advances in ocean waves, coastal, and ocean engineering. More than 110 internationally recognized authorities in the field of coastal and ocean engineering have contributed articles in their areas of expertise to this handbook. These international luminaries are from highly respected universities and renowned research and consulting organizations around the world.
Download or read book Scientific and Technical Issues in Tsunami Hazard Assessment of Nuclear Power Plant Sites written by United States. Science Review Working Group and published by . This book was released on 2007 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tsunami Science Four Years After the 2004 Indian Ocean Tsunami written by Phil R. Cummins and published by Springer Science & Business Media. This book was released on 2009-04-20 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: The tragedy of the 2004 Indian Ocean tsunami has led to a rapid expansion in science directed at understanding tsunami and mitigating their hazard. A remarkable cross-section of this research was presented in the session: Tsunami Generation and Hazard, at the International Union of Geodesy and Geophysics XXIV General Assembly in Perugia, held in July of 2007. Over one hundred presentations were made at this session, spanning topics ranging from paleotsunami research, to nonlinear shallow-water theory, to tsunami hazard and risk assessment. A selection of this work, along with other contributions from leading tsunami scientists, is published in detail in the 28 papers of this special issue of Pure and Applied Geophysics: Tsunami Science Four Years After the Indian Ocean Tsunami. Part I of this issue includes 14 papers covering the state-of-the-art in tsunami modelling and hazard assessment. Another 14 papers are published in Part II focusing on observations and data analysis.
Download or read book Numerical Modeling of Tsunami Waves written by Juan J. Horrillo and published by World Scientific Publishing Company. This book was released on 2021-10-26 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This solutions manual is a companion to the workbook, Practical Numerical Mathematics with MATLAB: A workbook. It is intended for use by individual students independently studying the workbook and provides complete MATLAB code and numerical results for each of the exercises in the workbook and will be especially useful for those students without previous MATLAB programming experience. It is also valuable for classroom instructors to help pinpoint the author's intent in each exercise and to provide a model for graders.
Download or read book Variability in Long wave Runup as a Function of Nearshore Bathymetric Features written by Lauren M. Dunkin and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Beaches and barrier islands are vulnerable to extreme storm events, such as hurricanes, that can cause severe erosion and overwash to the system. Having dunes and a wide beach in front of coastal infrastructure can provide protection during a storm, but the influence that nearshore bathymetric features have in protecting the beach and barrier island system is not completely understood. The spatial variation in nearshore features, such as sand bars and beach cusps, can alter nearshore hydrodynamics, including wave setup and runup. The influence of bathymetric features on long-wave runup can be used in evaluating the vulnerability of coastal regions to erosion and dune overtopping, evaluating the changing morphology, and implementing plans to protect infrastructure. In this thesis, long-wave runup variation due to changing bathymetric features as determined with the numerical model XBeach is quantified (eXtreme Beach behavior model). Wave heights are analyzed to determine the energy through the surfzone. XBeach assumes that coastal erosion at the land-sea interface is dominated by bound long-wave processes. Several hydrodynamic conditions are used to force the numerical model. The XBeach simulation results suggest that bathymetric irregularity induces significant changes in the extreme long-wave runup at the beach and the energy indicator through the surfzone.
Download or read book Simulation of Water Waves by Boussinesq Models written by Ge Wei and published by . This book was released on 1997 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new set of time-dependent Boussinesq equations is derived to simulate nonlinear long wave propagation in coastal regions. Following the approaches by Nwogu and later by Chen and Liu, the velocity (or velocity potential) at a certain water depth corresponding to the optimum linear dispersion property is used as a dependent variable. Therefore, the resulting equations are valid in intermediate water depth as well as for highly nonlinear waves. Coefficients for second order bound waves and the third order Schrodinger equation are derived and compared with exact solutions. A numerical model using a combination of second and fourth order schemes to discretize equation terms is developed for obtaining solutions to the equations. A fourth order predictor-corrector scheme is employed for time stepping and the first order derivative terms are finite differenced to fourth order accuracy, making the truncation errors smaller than the dispersive terms in the equations. Linear stability analysis is performed to determine the corresponding numerical stability range for the model. To avoid the problem of wave reflection from the conventional incident boundary condition, internal wave generation by source function is employed for the present model. Numerical filtering is applied at specified time steps in the model to eliminate short waves (about 2 to 5 times of the grid size) which are generated by the nonlinear interaction of long waves. To simulate the wave breaking process, additional terms for artificial eddy viscosity are included in the model equations to dissipate wave energy. The dissipation terms are activated when the horizontal gradient of the horizontal velocity exceeds the specified breaking criteria. Some of the existing models for simulating the process of wave runup are reviewed and we attempt to incorporate the present model to simulate the process by maintaining a thin layer of water over the physically dry grids.
Download or read book Improved Wave Runup Forecasts Using Remote Observations and Numerical Models written by Athina Maya Zoé Lange and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The accuracy of flood forecasting models depends crucially on understanding wave runup. I use theory, insitu and remote observations, numerical modeling, computer vision, and deep learning to (1) investigate numerically the runup dependence on bathymetry and incident wave conditions, (2) improve video-based bathymetry estimates, and (3) characterize infragravity waves in 10m depth, for use in boundary conditions of runup models. Implementation into operational runup observing systems and models is ongoing. A numerical modeling (SWASH) study used 138 hindcast historical storm waves, two offshore boundary conditions, and 24 representative eroded beach bathymetries from a Southern California beach. The runup 2% exceedance level varied by more than 30% in response to changes in bathymetry or infragravity wave boundary conditions. An empirical parameterization trained on this dataset includes both a foreshore beach slope beta_f and an effective mid-surfzone slope beta_eff (Chapter 2, Lange et al. 2022). Subaqueous bathymetry is usually unknown because of the large expense of insitu jetski surveys, but beta_f and beta_eff can be estimated approximately and cost-effectively from images. The new 2-slope runup models have smaller errors than 1-slope models, but lack generality and have fundamentally limited accuracy. I show that useful bathymetry can be extracted from video collected during a single 17-minute quadcopter hover. The existing cBathy algorithm is extended with a crest-tracking algorithm that significantly reduces large cBathy errors near the breakpoint. The crest-tracking algorithm uses a deep-learning neural network to annotate timestacks for celerity estimates, and the depth inversion includes a nonlinear correction. This approach reduces RMSE surfzone depth errors to 0.17m, from ~0.81m with cBathy (Chapter 3, Lange et al. 2023, revision submitted to Coastal Engineering). The infragravity offshore (~10m depth) boundary condition is another potential error source in the runup model estimates. Several years of observations show that free infragravity waves are often much larger (up to x10) than the bound waves often used as a boundary condition. A parameterization of the incident-free IG wave field is combined with the predicted boundwave energy into a sea surface elevation timeseries of the incident IG energy suitable for use in numerical models (Chapter 4).
Download or read book Russian Journal of Numerical Analysis and Mathematical Modelling written by and published by . This book was released on 2003 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Die K ste Archiv F r Forschung und Technik an Der Nord und Ostsee written by and published by . This book was released on 2007 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
