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Interaction Between Dense Gravity Currents And Internal Waves
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Book Synopsis Interaction Between Dense Gravity Currents and Internal Waves by : Yukinobu Tanimoto
Download or read book Interaction Between Dense Gravity Currents and Internal Waves written by Yukinobu Tanimoto and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Gravity currents are flows driven by horizontal density gradients. A dense gravity current is a specific type of gravity current where the density of the fluid is higher than that of the ambient, making the gravity current negatively buoyant. When the receiving ambient is stratified, the ultimate fate and transport of a dense gravity current becomes more complex. We consider a two-layer stratification, representative of a stratified water column in lakes and in the near-coastal environment. Using laboratory experiments, the interaction between dense gravity currents and internal waves are considered. Internal waves are observed to be generated by the gravity current, and their behavior in at shorter and longer time scales are quantified. Oncoming internal waves were also introduced, which acted to hinder the mass flux of a portion of the split gravity current.
Book Synopsis Gravity Currents by : John E. Simpson
Download or read book Gravity Currents written by John E. Simpson and published by Cambridge University Press. This book was released on 1999-10-21 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: A 1997 paperback of well-received study of gravity currents for many disciplines, including meteorology, oceanography, earth science.
Book Synopsis Gravity Currents by : John E. Simpson
Download or read book Gravity Currents written by John E. Simpson and published by . This book was released on 1987 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: This explanation of the nature of gravity currents (Bouyancy-driven flows in fluids) and their manifestations in the atmosphere, the oceans and the earth sciences, fills a serious gap in the literature. It will also benefit a great many workers in other scientific disciplines, who will be able to apply the principles of gravity currents to their own specialist subject. Much of the work has not previously been published, and the publishers know of no other book with a similar range of information. The author's own work in the development of a variety of laboratory experiments designed to offer an understanding of the physical processes, is made very clear to the reader, illustrating a range of phenomena which are important in areas as diverse as aircraft safety, the distribution of airborne pests, and airborne pollution. The study of oceans ranges from the Gulf Stream to river fronts in lakes and fjords, where the formation of a front is of biological importance. In a section on avalanche flows, avalanches of snow, rock, and volcanic eruptions, are also shown to be gravity currents of vital significance. Factors influencing the behaviour of gravity currents are reviewed. The topics are dealt with in numerous laboratory experiments, and only simple mathematics is included. A final chapter reviews the growing subject of numerical models of gravity currents.
Book Synopsis Gravity Currents And Intrusions: Analysis And Prediction by : Marius Ungarish
Download or read book Gravity Currents And Intrusions: Analysis And Prediction written by Marius Ungarish and published by World Scientific. This book was released on 2020-12-08 with total page 815 pages. Available in PDF, EPUB and Kindle. Book excerpt: The flow of gravity currents and intrusions is a subject of active research and engineering application. Currently, there are no formal teaching courses for this topic. Materials and information available in the market are scattered and dated. Researchers and engineers face difficulties in acquiring the 'state-of-the-art' knowledge. The book bridges this gap between the need and supply of the relevant insight and know-how.Written by a renowned author who is a recognized authority in the field, this unique compendium assembles the relevant knowledge into a systematic and unified framework. The presentation is gradual from the elementary to the frontier, and accessible to readers with only a basic background in fluid mechanics and applied mathematics. This will facilitate the systematic acquirement and application of available knowledge to both practical problems and further research.This must-have volume is a useful monograph — that can also serve as a textbook in advanced courses — for researchers, students, engineers and applied mathematicians in the fields of civil engineering, hydraulic engineering, mechanical engineering, ocean engineering and environmental engineering.
Book Synopsis Internal Gravity Waves in the Shallow Seas by : Stanisław R. Massel
Download or read book Internal Gravity Waves in the Shallow Seas written by Stanisław R. Massel and published by Springer. This book was released on 2015-07-07 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains a comprehensive study of the internal ocean waves, which play a very important role in ocean physics providing mechanisms for ocean water mixing and circulation, as well as the transportation of gases, nutrients, and a very large number of marine organisms in the ocean body. In contrast to surface waves, the literature on internal waves is not so numerous, mainly due to the difficulties in experimental data collection and in the mathematical description of internal wave propagation. In this book, the basic mathematical principles, a physical description of the observed phenomena, and practical theoretical methods of determination of wave parameters as well as the original method of observation using moving sensors are presented. Special attention is paid to internal wave propagation over changing bottom topographies in shallow seas such as the Baltic Sea. The book is supplemented with an extended list of relevant and extended bibliographies, a subject index, and an author index.
Book Synopsis The Interaction of Short-wavelength Internal Waves with a Background Current by : Dave Broutman
Download or read book The Interaction of Short-wavelength Internal Waves with a Background Current written by Dave Broutman and published by . This book was released on 1982 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two approaches are used to explore the effects of shear on short-wavelength internal waves. In the first, the Taylor-Goldstein equation is solved exactly. The solutions reveal the inaccuracy of WKB predictions when applied to a curved velocity profile with a minimum Richardson number of order unity. To investigate internal waves in an inertial current, ray calculations are made. This second approach reveals that the process of refractive convergence, which includes the critical-layer interaction as a special case, operates at virtually all phases of the inertial oscillation and affects short waves of nearly al frequencies. It is also found, in contrast to the results of steady shear analyses, that short waves with phase speeds less that the mean flow maximum can propagate for several inertial periods without becoming unstable, and conversely that waves with initial phase speeds of two or three times the mean flow maximum can quickly become focussed to unstably high amplitudes. The final section examines the mean flow induced by three-dimensional, low-frequency, internal wave packets. Rotation alters the character of the flow so that the mean momentum is not equal to E/c, where c is the horizontal phase speed of the short waves and E is the intrinsic energy density. The generation of inertial waves by the internal wave field as found by Hasselmann (1970) for a wave field that is statistically homogeneous in the horizontal, is not predicted by a calculation that incorporates horizontal variations.
Book Synopsis Dynamics of Internal Gravity Waves in the Ocean by : Yu.Z. Miropol'sky
Download or read book Dynamics of Internal Gravity Waves in the Ocean written by Yu.Z. Miropol'sky and published by Springer Science & Business Media. This book was released on 2001-04-30 with total page 750 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph creates a systematic interpretation of the theoretical and the most actual experimental aspects of the internal wave dynamics in the ocean. Firstly, it draws attention to the important physical effects from an oceanographical point of view which are presented in mathematical descriptions. Secondly, the book serves as an introduction to the range of modern ideas and the methods in the study of wave processes in dispersive media. The book is meant for specialists in physics of the ocean, oceanography, geophysics, hydroacoustics.
Book Synopsis Reflection of Internal Gravity Waves by a Layered Density Anomaly by : Richard P. Mied
Download or read book Reflection of Internal Gravity Waves by a Layered Density Anomaly written by Richard P. Mied and published by . This book was released on 1973 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: The characteristics of the propagation of internal gravity waves in the ocean, either upward from the bottom or downward from the region of the surface, is of interest to oceanographers because of the implications to the total energy budget of the internal wave field. This report considers the interaction of a plane internal wave train with a diffuse layer embedded in a density profile possessing an otherwise exponential dependence of height.
Book Synopsis Internal Gravity Waves by : Bruce R. Sutherland
Download or read book Internal Gravity Waves written by Bruce R. Sutherland and published by Cambridge University Press. This book was released on 2010-09-02 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of internal gravity waves provides many challenges: they move along interfaces as well as in fully three-dimensional space, at relatively fast temporal and small spatial scales, making them difficult to observe and resolve in weather and climate models. Solving the equations describing their evolution poses various mathematical challenges associated with singular boundary value problems and large amplitude dynamics. This book provides the first comprehensive treatment of the theory for small and large amplitude internal gravity waves. Over 120 schematics, numerical simulations and laboratory images illustrate the theory and mathematical techniques, and 130 exercises enable the reader to apply their understanding of the theory. This is an invaluable single resource for academic researchers and graduate students studying the motion of waves within the atmosphere and ocean, and also mathematicians, physicists and engineers interested in the properties of propagating, growing and breaking waves.
Book Synopsis Comprehensive Remote Sensing by : Shunlin Liang
Download or read book Comprehensive Remote Sensing written by Shunlin Liang and published by Elsevier. This book was released on 2017-11-08 with total page 3183 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive Remote Sensing, Nine Volume Set covers all aspects of the topic, with each volume edited by well-known scientists and contributed to by frontier researchers. It is a comprehensive resource that will benefit both students and researchers who want to further their understanding in this discipline. The field of remote sensing has quadrupled in size in the past two decades, and increasingly draws in individuals working in a diverse set of disciplines ranging from geographers, oceanographers, and meteorologists, to physicists and computer scientists. Researchers from a variety of backgrounds are now accessing remote sensing data, creating an urgent need for a one-stop reference work that can comprehensively document the development of remote sensing, from the basic principles, modeling and practical algorithms, to various applications. Fully comprehensive coverage of this rapidly growing discipline, giving readers a detailed overview of all aspects of Remote Sensing principles and applications Contains ‘Layered content’, with each article beginning with the basics and then moving on to more complex concepts Ideal for advanced undergraduates and academic researchers Includes case studies that illustrate the practical application of remote sensing principles, further enhancing understanding
Book Synopsis An Introduction to Gravity Currents and Intrusions by : Marius Ungarish
Download or read book An Introduction to Gravity Currents and Intrusions written by Marius Ungarish and published by CRC Press. This book was released on 2009-04-28 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gravity currents and intrusions are the ubiquitous phenomena where a fluid of one density flows horizontally into a fluid of a different density. For researchers and engineers, the ability to understand and predict these flow fields is essential in wide-ranging applications including those involved with atmospheric and ocean dynamics, the propagation of pollutants, and the dispersion of volcanic clouds. Although many new theories, experimental data, simulation results, and insights have surfaced recently, most of these developments remain scattered in journals and conference papers. A systematic and unified introduction to the field, which incorporates the new results and developments, is bound to facilitate the application of the available knowledge to both practical problems and further investigations. Written by a recognized authority active in recent developments in gravity current research, An Introduction to Gravity Currents and Intrusions provides an up-to-date, self-contained, and systematic introduction to the study, interpretation, and prediction of gravity current flows. The author uses a simple mathematical framework to provide an accessible and comprehensive introduction to the mathematical and physical aspects of this important topic. The text supplies researchers and practitioners with the foundation required to formulate problems, interpret experimental results and measurements data, obtain simple and insightful analytical estimates and solutions, and develop or implement numerical codes for related problems. The book also points out gaps of knowledge in the current understanding that require further research. This accessible reference requires only a basic background in fluid mechanics and applied mathematics, making it an ideal starting place for researchers and engineers new to the field. It can also serve as a textbook for upper-level undergraduate and graduate level courses in fluid dynamics.
Book Synopsis Internal Gravity Waves in the Ocean by : Jo Roberts
Download or read book Internal Gravity Waves in the Ocean written by Jo Roberts and published by . This book was released on 1975 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis On the interaction between short internal waves and larger scale motions in the ocean by : Peter Müller
Download or read book On the interaction between short internal waves and larger scale motions in the ocean written by Peter Müller and published by . This book was released on 1974 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Interaction of Ocean Waves and Wind by : Peter Janssen
Download or read book The Interaction of Ocean Waves and Wind written by Peter Janssen and published by Cambridge University Press. This book was released on 2004-10-28 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book was published in 2004. The Interaction of Ocean Waves and Wind describes in detail the two-way interaction between wind and ocean waves and shows how ocean waves affect weather forecasting on timescales of 5 to 90 days. Winds generate ocean waves, but at the same time airflow is modified due to the loss of energy and momentum to the waves; thus, momentum loss from the atmosphere to the ocean depends on the state of the waves. This volume discusses ocean wave evolution according to the energy balance equation. An extensive overview of nonlinear transfer is given, and as a by-product the role of four-wave interactions in the generation of extreme events, such as freak waves, is discussed. Effects on ocean circulation are described. Coupled ocean-wave, atmosphere modelling gives improved weather and wave forecasts. This volume will interest ocean wave modellers, physicists and applied mathematicians, and engineers interested in shipping and coastal protection.
Book Synopsis Nonlinear Internal Waves in Lakes by : Kolumban Hutter
Download or read book Nonlinear Internal Waves in Lakes written by Kolumban Hutter and published by Springer Science & Business Media. This book was released on 2011-11-25 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Internal wave dynamics in lakes (and oceans) is an important physical component of geophysical fluid mechanics of ‘quiescent’ water bodies of the Globe. The formation of internal waves requires seasonal stratification of the water bodies and generation by (primarily) wind forces. Because they propagate in basins of variable depth, a generated wave field often experiences transformation from large basin-wide scales to smaller scales. As long as this fission is hydrodynamically stable, nothing dramatic will happen. However, if vertical density gradients and shearing of the horizontal currents in the metalimnion combine to a Richardson number sufficiently small (
Book Synopsis The Near-Surface Layer of the Ocean by : Alexander Soloviev
Download or read book The Near-Surface Layer of the Ocean written by Alexander Soloviev and published by Springer Science & Business Media. This book was released on 2006-02-21 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt: Until the 1980s, a tacit agreement among many physical oceanographers was that nothing deserving attention could be found in the upper few meters of the ocean. The lack of adequete knowledge about the near-surface layer of the ocean was mainly due to the fact that the widely used oceanographic instruments (such as bathythermographs, CTDs, current meters, etc.) were practically useless in the upper few meters of the ocean. Interest in the ne- surface layer of the ocean rapidly increased along with the development of remote sensing techniques. The interpretation of ocean surface signals sensed from satellites demanded thorough knowledge of upper ocean processes and their connection to the ocean interior. Despite its accessibility to the investigator, the near-surface layer of the ocean is not a simple subject of experimental study. Random, sometimes huge, vertical motions of the ocean surface due to surface waves are a serious complication for collecting quality data close to the ocean surface. The supposedly minor problem of avoiding disturbances from ships’ wakes has frustrated several generations of oceanographers attempting to take reliable data from the upper few meters of the ocean. Important practical applications nevertheless demanded action, and as a result several pioneering works in the 1970s and 1980s laid the foundation for the new subject of oceanography – the near-surface layer of the ocean.
Book Synopsis Waves in Geophysical Fluids by : John Grue
Download or read book Waves in Geophysical Fluids written by John Grue and published by Springer Science & Business Media. This book was released on 2007-08-03 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the forecasting and risk evaluation of tsunamis by tectonic motion, land slides, explosions, run-up, and maps the tsunami sources in the world's oceans. It presents stochastic Monte-Carlo simulations and focusing mechanisms for rogue waves, nonlinear wave models, breather formulas, and the kinematics of the Draupner wave. Coverage also reveals the full story about the discovery of the very large oceanic internal waves.
