Model Study Of Wave Propagation In A Continuous Ice Sheet
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Model Study Of Wave Propagation In A Continuous Ice Sheet
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Author : Ottar Helge Grande
language : en
Publisher:
Release Date : 1983
Model Study Of Wave Propagation In A Continuous Ice Sheet written by Ottar Helge Grande and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Gravity waves categories.
Theoretical And Experimental Studies Of Elastic Wave Propagation In Anisotropic Heterogeneous Floating Ice Sheets
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Author : Don L. Anderson
language : en
Publisher:
Release Date : 1963
Theoretical And Experimental Studies Of Elastic Wave Propagation In Anisotropic Heterogeneous Floating Ice Sheets written by Don L. Anderson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1963 with Elastic waves categories.
Simulations Of Flexural Gravity Wave Response Of Antarctic Ice Shelves To Tsunami And Ocean Wave Impacts
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Author : Nurbek Tazhimbetov
language : en
Publisher:
Release Date : 2022
Simulations Of Flexural Gravity Wave Response Of Antarctic Ice Shelves To Tsunami And Ocean Wave Impacts written by Nurbek Tazhimbetov and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022 with categories.
Floating ice shelves off the coast of Antarctica play an important role in buttressing the outflow of grounded ice. These ice shelves are subject to the continuous impact of ocean waves and tides which can induce their flexure, create bending stresses, and possibly facilitate rifting and calving. Ice shelves have complex geometries and spatially variable ice thickness and water depth. These features that are challenging or impossible to capture with the commonly used semi-analytical methods that have been used to study wave reflection, transmission, and propagation. In this thesis, we will address this challenge, firstly, by introducing a provably stable, higher-order-accurate finite difference method to solve the 2D (map view) problem of an incompressible ocean partially covered with an elastic plate. The method is based on the summation-by-parts--simultaneous approximation terms (SBP-SAT) framework, and uses curvilinear multiblock grids to handle complex geometries. The model solves the Euler-Bernoulli plate equation, with spatially variable properties, coupled with the 2D variable depth shallow water equations. We demonstrate the stability and accuracy of the numerical model using the method of manufactured solutions. Next, we apply the new method to study ocean wave forcing of the Thwaites Glacier Ice Tongue, Eastern Ice Shelf and Pine Island Ice Shelf, with ice thickness and water depth from BedMachine2. We also apply our model to Ross Ice Shelf, where seismic data exists for validation. We reproduce observed attenuation of waves in the infragravity band (IG, 0.003-0.03 Hz) and the absence of attenuation in the very long period band (VLP, less than 0.003 Hz). This attenuation is attributed to scattering losses that are captured by our model. Finally, we model the response of these ice shelves to tsunamis from the 2015 Mw 8.3 Illapel, Chile, earthquake and to a hypothetical Mw 8.6 earthquake in the Central American subduction zone. We calculate maximum wave amplitudes and bending stresses, in particular identifying regions that experience large bending stresses from wave focusing and amplification. One such region is on the upstream side of the pinning point of the Thwaites Eastern Ice shelf, a location of critical importance for the stability of the West Antarctic Ice Sheet.
A State Of The Art Review Of Wave Propagation In Floating Ice Sheets
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Author : A. V. M. Arunachalam
language : en
Publisher:
Release Date : 1989
A State Of The Art Review Of Wave Propagation In Floating Ice Sheets written by A. V. M. Arunachalam and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Ice sheets categories.
A state-of-the-art review on the interaction of waves in ice covered waters is presented in this paper. Both experimental and theoretical aspects of the interaction of linear and nonlinear incident waves on continuous and pack ice are discussed. Wave energy dissipation processes are briefly mentioned.
Wave Propagation In Inhomogeneous Media With Antarctic Ice Cap As A Model
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Author : Hemendra Kumar Acharya
language : en
Publisher:
Release Date : 1969
Wave Propagation In Inhomogeneous Media With Antarctic Ice Cap As A Model written by Hemendra Kumar Acharya and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with categories.
Sea Ice Observation And Modelling
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Author :
language : en
Publisher:
Release Date : 1994
Sea Ice Observation And Modelling written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Climatology categories.
Dynamics Of The Elastic Ice Sheet
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Author : Juri Kajaste-Rudnitski
language : en
Publisher:
Release Date : 1990
Dynamics Of The Elastic Ice Sheet written by Juri Kajaste-Rudnitski and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Ice sheets categories.
Considers an ice-structure interaction model; dynamic behavior of the ice sheet considered as a half-plane is studied in the time and frequency domain.
Propagation Of Elastic Waves In A Floating Ice Sheet
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Author : Frank Press
language : en
Publisher:
Release Date : 1950
Propagation Of Elastic Waves In A Floating Ice Sheet written by Frank Press and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1950 with categories.
Propagation Of Elastic Waves In A Floating Ice Sheet
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Author : Frank 1924- Author Press
language : en
Publisher: Hassell Street Press
Release Date : 2021-09-09
Propagation Of Elastic Waves In A Floating Ice Sheet written by Frank 1924- Author Press and has been published by Hassell Street Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-09-09 with categories.
This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Wave Propagation In Complex Media
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Author : George Papanicolaou
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Wave Propagation In Complex Media written by George Papanicolaou and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Mathematics categories.
This IMA Volume in Mathematics and its Applications WAVE PROPAGATION IN COMPLEX MEDIA is based on the proceedings of two workshops: • Wavelets, multigrid and other fast algorithms (multipole, FFT) and their use in wave propagation and • Waves in random and other complex media. Both workshops were integral parts of the 1994-1995 IMA program on "Waves and Scattering." We would like to thank Gregory Beylkin, Robert Burridge, Ingrid Daubechies, Leonid Pastur, and George Papanicolaou for their excellent work as organizers of these meetings. We also take this opportunity to thank the National Science Foun dation (NSF), the Army Research Office (ARO, and the Office of Naval Research (ONR), whose financial support made these workshops possible. A vner Friedman Robert Gulliver v PREFACE During the last few years the numerical techniques for the solution of elliptic problems, in potential theory for example, have been drastically improved. Several so-called fast methods have been developed which re duce the required computing time many orders of magnitude over that of classical algorithms. The new methods include multigrid, fast Fourier transforms, multi pole methods and wavelet techniques. Wavelets have re cently been developed into a very useful tool in signal processing, the solu tion of integral equation, etc. Wavelet techniques should be quite useful in many wave propagation problems, especially in inhomogeneous and nonlin ear media where special features of the solution such as singularities might be tracked efficiently.