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Thermoclines (Oceanography) --- Thermoclines. --- Internal waves.
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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.
Internal waves --- Gravity waves --- Fluid dynamics --- Earth & Environmental Sciences --- Marine Science --- Dynamics --- Fluid mechanics --- Hydrodynamics --- Waves --- Boundary waves (Oceanography) --- Waves, Internal --- Ocean waves --- Internal waves. --- Gravity waves. --- Fluid dynamics.
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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 (< ¼), the light epilimnion water mixes with the water of the hypolimnion, giving rise to vertical diffusion of substances into lower depths. This meromixis is chiefly responsible for the ventilation of the deeper waters and the homogenization of the water through the lake depth. These processes are mainly formed as a result of the physical conditions, but they play biologically an important role in the trophicational state of the lake.
Internal waves. --- Lakes. --- Internal waves --- Lakes --- Geography --- Physics --- Earth & Environmental Sciences --- Physical Sciences & Mathematics --- Physical Geography --- Cosmic Physics --- Marine Science --- Lochs --- Boundary waves (Oceanography) --- Waves, Internal --- Earth sciences. --- Geophysics. --- Mathematical physics. --- Mechanics. --- Marine sciences. --- Freshwater. --- Earth Sciences. --- Geophysics/Geodesy. --- Marine & Freshwater Sciences. --- Mathematical Physics. --- Bodies of water --- Ocean waves --- Physical geography. --- Marine Sciences. --- Classical Mechanics. --- Classical mechanics --- Newtonian mechanics --- Dynamics --- Quantum theory --- Ocean sciences --- Aquatic sciences --- Physical mathematics --- Fresh waters --- Freshwater --- Freshwaters --- Inland water --- Inland waters --- Water --- Geological physics --- Terrestrial physics --- Earth sciences --- Mathematics
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Oceanic internal waves (IWs) at frequencies from local inertial (e.g., near-inertial internal waves) to buoyancy frequencies (nonlinear internal waves or internal solitary waves), sometimes including diurnal and semidiurnal tidal frequencies, play an important role in redistributing heat, momentum, materials, and energy via turbulent mixing. IWs are found ubiquitously in many seas, including East Asian marginal seas (Indonesian Seas, South China Sea, East China Sea, Yellow Sea, and East Sea or Japan Sea), significantly affecting underwater acoustics, coastal and offshore engineering, submarine navigation, biological productivity, and the local and global climate. Despite decades of study on the IWs in some regions, our understanding of the IWs in the East Asian marginal seas is still in a primitive state and the mechanisms underlying every stage (generation, propagation, evolution, and dissipation) of IWs are not always clear. This Special Issue includes papers related to all fields of both low- and high-frequency IW studies in the specified region, including remote sensing, in situ observations, theories, and numerical models.
Technology: general issues --- History of engineering & technology --- near-inertial waves --- typhoon Megi --- South China Sea --- hybrid coordinate ocean model reanalysis results --- Luzon Strait --- baroclinic tides --- stratification variability --- MITgcm --- nonlinear internal wave --- propagating speed --- propagating direction --- underway observation --- moored observation --- East China Sea --- internal solitary wave --- shipboard observation --- extreme current velocity --- wave breaking --- trapped core --- near-inertial internal waves --- nonseasonal variability --- mesoscale flow field --- relative vorticity --- Okubo-Weiss parameter --- subsurface mooring --- southwestern East Sea --- Japan Sea --- internal waves --- Hainan Island --- KRI nanggala-402 submarine wreck --- Lombok Strait --- Bali Sea --- internal solitary waves --- remote sensing images --- underwater noise --- flow noise --- vortex-induced vibration --- the South China Sea --- n/a
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Oceanic internal waves (IWs) at frequencies from local inertial (e.g., near-inertial internal waves) to buoyancy frequencies (nonlinear internal waves or internal solitary waves), sometimes including diurnal and semidiurnal tidal frequencies, play an important role in redistributing heat, momentum, materials, and energy via turbulent mixing. IWs are found ubiquitously in many seas, including East Asian marginal seas (Indonesian Seas, South China Sea, East China Sea, Yellow Sea, and East Sea or Japan Sea), significantly affecting underwater acoustics, coastal and offshore engineering, submarine navigation, biological productivity, and the local and global climate. Despite decades of study on the IWs in some regions, our understanding of the IWs in the East Asian marginal seas is still in a primitive state and the mechanisms underlying every stage (generation, propagation, evolution, and dissipation) of IWs are not always clear. This Special Issue includes papers related to all fields of both low- and high-frequency IW studies in the specified region, including remote sensing, in situ observations, theories, and numerical models.
near-inertial waves --- typhoon Megi --- South China Sea --- hybrid coordinate ocean model reanalysis results --- Luzon Strait --- baroclinic tides --- stratification variability --- MITgcm --- nonlinear internal wave --- propagating speed --- propagating direction --- underway observation --- moored observation --- East China Sea --- internal solitary wave --- shipboard observation --- extreme current velocity --- wave breaking --- trapped core --- near-inertial internal waves --- nonseasonal variability --- mesoscale flow field --- relative vorticity --- Okubo-Weiss parameter --- subsurface mooring --- southwestern East Sea --- Japan Sea --- internal waves --- Hainan Island --- KRI nanggala-402 submarine wreck --- Lombok Strait --- Bali Sea --- internal solitary waves --- remote sensing images --- underwater noise --- flow noise --- vortex-induced vibration --- the South China Sea --- n/a
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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.
Earth Sciences. --- Geophysics/Geodesy. --- Geophysics and Environmental Physics. --- Oceanography. --- Geography. --- Physical geography. --- Géographie --- Géographie physique --- Océanographie --- Gravity waves. --- Internal waves. --- Physics --- Physical Sciences & Mathematics --- Cosmic Physics --- Boundary waves (Oceanography) --- Waves, Internal --- Earth sciences. --- Geophysics. --- Hydrodynamics --- Waves --- Ocean waves --- Oceanography, Physical --- Oceanology --- Physical oceanography --- Thalassography --- Earth sciences --- Marine sciences --- Ocean --- Geography --- Geological physics --- Terrestrial physics
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Oceanic internal waves (IWs) at frequencies from local inertial (e.g., near-inertial internal waves) to buoyancy frequencies (nonlinear internal waves or internal solitary waves), sometimes including diurnal and semidiurnal tidal frequencies, play an important role in redistributing heat, momentum, materials, and energy via turbulent mixing. IWs are found ubiquitously in many seas, including East Asian marginal seas (Indonesian Seas, South China Sea, East China Sea, Yellow Sea, and East Sea or Japan Sea), significantly affecting underwater acoustics, coastal and offshore engineering, submarine navigation, biological productivity, and the local and global climate. Despite decades of study on the IWs in some regions, our understanding of the IWs in the East Asian marginal seas is still in a primitive state and the mechanisms underlying every stage (generation, propagation, evolution, and dissipation) of IWs are not always clear. This Special Issue includes papers related to all fields of both low- and high-frequency IW studies in the specified region, including remote sensing, in situ observations, theories, and numerical models.
Technology: general issues --- History of engineering & technology --- near-inertial waves --- typhoon Megi --- South China Sea --- hybrid coordinate ocean model reanalysis results --- Luzon Strait --- baroclinic tides --- stratification variability --- MITgcm --- nonlinear internal wave --- propagating speed --- propagating direction --- underway observation --- moored observation --- East China Sea --- internal solitary wave --- shipboard observation --- extreme current velocity --- wave breaking --- trapped core --- near-inertial internal waves --- nonseasonal variability --- mesoscale flow field --- relative vorticity --- Okubo-Weiss parameter --- subsurface mooring --- southwestern East Sea --- Japan Sea --- internal waves --- Hainan Island --- KRI nanggala-402 submarine wreck --- Lombok Strait --- Bali Sea --- internal solitary waves --- remote sensing images --- underwater noise --- flow noise --- vortex-induced vibration --- the South China Sea --- near-inertial waves --- typhoon Megi --- South China Sea --- hybrid coordinate ocean model reanalysis results --- Luzon Strait --- baroclinic tides --- stratification variability --- MITgcm --- nonlinear internal wave --- propagating speed --- propagating direction --- underway observation --- moored observation --- East China Sea --- internal solitary wave --- shipboard observation --- extreme current velocity --- wave breaking --- trapped core --- near-inertial internal waves --- nonseasonal variability --- mesoscale flow field --- relative vorticity --- Okubo-Weiss parameter --- subsurface mooring --- southwestern East Sea --- Japan Sea --- internal waves --- Hainan Island --- KRI nanggala-402 submarine wreck --- Lombok Strait --- Bali Sea --- internal solitary waves --- remote sensing images --- underwater noise --- flow noise --- vortex-induced vibration --- the South China Sea
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Physical processes are keys for the status of a lake. In this Special Issue, the emphasis is on dissolved oxygen and on exchange of gases, energy and momentum between atmosphere and further mixing and consumption within the water. The studies presented relate to ice-free as well as ice-covered lakes. Field measurements are combined with theoretical approaches.
Technology: general issues --- History of engineering & technology --- Environmental science, engineering & technology --- hydrodynamic model --- bubble plume --- artificial mixing --- GLM --- Si3D --- dissolved gas --- Henry law --- total gas pressure --- ebullition --- greenhouse gases --- lacustrine waters --- diurnal variation --- hourly model --- water temperature --- dissolved oxygen --- shallow lakes --- and sediment heat flux --- water quality --- chlorophyll-a --- phosphorus --- phosphorus release --- full set of turbulent stresses --- Acoustic Doppler current profilers --- interbeam velocity correlations --- ice-covered lakes --- convectively-mixed layer --- anisotropic turbulence --- shallow lake --- ice-covered period --- ice phenology --- snow-ice cover thickness --- under-ice irradiance --- radiatively driven convection --- climate change --- 3D modelling --- stratification --- bubble plumes --- fractal --- lakes --- mixing --- multi-scale --- turbulence --- energy fluxes --- energy content --- reservoirs --- internal waves --- surface waves --- biogenic turbulence
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