Hydraulic Performance Of An Impermeable Submerged Structure For Tsunami Damping

In the face of the enormous destruction caused by the December 26, 2004 Indian Ocean tsunami event, it is necessary to utilize more effective means of tsunami mitigation to prevent such tragedies. Based on the experiences gathered in storm wave damping by using submerged structures, Agnieszka Strusinska examines the applicability of artificial reefs as an integrated part of a multi-defence line strategy for tsunami attenuation. In her study, she first discusses the results of laboratory experiments in order to identify the difference in the nonlinear interaction of storm and tsunami-like solitary waves with an impermeable sub¬mer¬ged structure of a finite width (including generation of wave breaking and wave fission). With this basic knowledge, the damping performance of an artificial reef under tsunami impact is determined as a ratio of wave transmission, wave reflection, and wave energy dissipation for varying reef geometries and incident wave conditions using a Boussinesq-type numerical model.

Existing coastal management and defense approaches are not well suited to meet the challenges of climate change and related uncertanities. Professionals in this field need a more dynamic, systematic and multidisciplinary approach. Written by an international group of experts, Coastal Risk Management in a Changing Climate provides innovative, multidisciplinary best practices for mitigating the effects of climate change on coastal structures. Based on the Theseus program, the book includes eight study sites across Europe, with specific attention to the most vulnerable coastal environments such as deltas, estuaries and wetlands, where many large cities and industrial areas are located. Integrated risk assessment tools for considering the effects of climate change and related uncertainties Presents latest insights on coastal engineering defenses Provides integrated guidelines for setting up optimal mitigation measures Provides directly applicable tools for the design of mitigation measures Highlights socio-economic perspectives in coastal mitigation

Till the very end of the twentieth century tsunami waves (or ‘waves in a harbour’, translated from Japanese) were considered an extremely rare and exotic natural p- nomenon, originating in the ocean and unexpectedly falling upon the seaside as gigantic waves. The 26th of December 2004, when tsunami waves wiped out, in a single day, more than 250,000 human lives, mourned in many countries, turned out to be a tragic date for all mankind. The authors of this book, who have studied tsunami waves for many years, - tended it to be a systematic exposition of modern ideas concerning • The mechanisms of tsunami wave generation • The peculiarities of tsunami wave propagation in the open ocean and of how waves run-up beaches • Methods for tsunami wave registration and the operation of a tsunami warning system • The mechanisms of other catastrophic processes in the ocean related to the se- mic activity of our planet The authors considered their main goal to be the creation of book prese- ing modern knowledge of tsunami waves and of other catastrophes in the ocean to scienti?c researchers and specialists in geophysics, oceanography, seismology, hydroacoustics, geology, geomorphology, civil and seaside engineering, postgr- uate students and students of relevant professions.

A timely review of state-of-the-art tsunami research, covering case studies and recent developments from various approaches. Provides a practical guide to improving operational tsunami warning systems and mitigating coastal hazard from tsunamis.

This is the first book on explosion-generated water waves. It presents the theoretical foundations and experimental results of the generation and propagation of impulsively generated waves resulting from underwater explosions. Many of the theories and concepts presented herein are applicable to other types of water waves, in particular, tsunamis and waves generated by the fall of a meteorite. Linear and nonlinear theories, as well as experimental calibrations, are presented for cases of deep and shallow water explosions. Propagation of transient waves on dissipative, nonuniform bathymetries together with laboratory simulations are analyzed and discussed.

This collection contains more than 270 papers presented at the 26th International Conference on Coastal Engineering, held in Copenhagen, Denmark, June 22-26, 1998.

First published in 1957, this is a classic monograph in the area of applied mathematics. It offers a connected account of the mathematical theory of wave motion in a liquid with a free surface and subjected to gravitational and other forces, together with applications to a wide variety of concrete physical problems. A never-surpassed text, it remains of permanent value to a wide range of scientists and engineers concerned with problems in fluid mechanics. The four-part treatment begins with a presentation of the derivation of the basic hydrodynamic theory for non-viscous incompressible fluids and a description of the two principal approximate theories that form the basis for the rest of the book. The second section centers on the approximate theory that results from small-amplitude wave motions. A consideration of problems involving waves in shallow water follows, and the text concludes with a selection of problems solved in terms of the exact theory. Despite the diversity of its topics, this text offers a unified, readable, and largely self-contained treatment.

This publication is a summary of good practice on the use of rock in engineering works for rivers, coasts and seas. It has incorporated all the significant advances in knowledge that have occured over the past 10-15 years.