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Author: Benoit Cushman-Roisin
Publisher:
ISBN:
Category : Fluid dynamics
Languages : en
Pages : 240
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Book Description
Convection, mixing and advection in the upper ocean may be thought of as the motion of two interacting fluids of different properties: the sinking fluid parcels generated near the surface and transmitting surface information downward, and the compensating rising return flow. A general theory based on this concept is developed and applied to various cases, including deepening of the wind-mixed layer, penetrative convection due to surface cooling, and upper ocean frontogenesis due to horizontal advection. Although the applications focus on the upper ocean, the theory also applies to the lower atmosphere. Equations of the general theory are written for two interactnig Boussinesq fluids in a rotating frame. Interaction terms are parameterized in order to apply the theory to geophysical situations. Considerable simplification is obtained by assuming that the response time of turbulence is much less than the time scale of evolution of the overall system. The study of deepening of the wind-mixed layer and of penetrative convection due to surface cooling are straightforward applications of the general theory. The analytical treatment of the equations is simplified using the observations that the mixed layer is quasi-homogeneous in its physical properties and that the thermocline is a thin layer of large gradients. The solution is analytical and simple.
Author: Benoit Cushman-Roisin
Publisher:
ISBN:
Category : Fluid dynamics
Languages : en
Pages : 240
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Book Description
Convection, mixing and advection in the upper ocean may be thought of as the motion of two interacting fluids of different properties: the sinking fluid parcels generated near the surface and transmitting surface information downward, and the compensating rising return flow. A general theory based on this concept is developed and applied to various cases, including deepening of the wind-mixed layer, penetrative convection due to surface cooling, and upper ocean frontogenesis due to horizontal advection. Although the applications focus on the upper ocean, the theory also applies to the lower atmosphere. Equations of the general theory are written for two interactnig Boussinesq fluids in a rotating frame. Interaction terms are parameterized in order to apply the theory to geophysical situations. Considerable simplification is obtained by assuming that the response time of turbulence is much less than the time scale of evolution of the overall system. The study of deepening of the wind-mixed layer and of penetrative convection due to surface cooling are straightforward applications of the general theory. The analytical treatment of the equations is simplified using the observations that the mixed layer is quasi-homogeneous in its physical properties and that the thermocline is a thin layer of large gradients. The solution is analytical and simple.
Author: Matthew W. Hecht
Publisher: John Wiley & Sons
ISBN: 1118671996
Category : Science
Languages : en
Pages : 654
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Book Description
Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 177. This monograph is the first to survey progress in realistic simulation in a strongly eddying regime made possible by recent increases in computational capability. Its contributors comprise the leading researchers in this important and constantly evolving field. Divided into three parts Oceanographic Processes and Regimes: Fundamental Questions Ocean Dynamics and State: From Regional to Global Scale, and Modeling at the Mesoscale: State of the Art and Future Directions The volume details important advances in physical oceanography based on eddy resolving ocean modeling. It captures the state of the art and discusses issues that ocean modelers must consider in order to effectively contribute to advancing current knowledge, from subtleties of the underlying fluid dynamical equations to meaningful comparison with oceanographic observations and leading-edge model development. It summarizes many of the important results which have emerged from ocean modeling in an eddying regime, for those interested broadly in the physical science. More technical topics are intended to address the concerns of those actively working in the field.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Publisher:
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Category : Aeronautics
Languages : en
Pages : 364
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Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 216
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Book Description
Author: Arthur C. Luskin
Publisher:
ISBN:
Category : Convection
Languages : en
Pages : 86
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Author: Michael Meredith
Publisher: Elsevier
ISBN: 0128215135
Category : Science
Languages : en
Pages : 386
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Book Description
Ocean Mixing: Drivers, Mechanisms and Impacts presents a broad panorama of one of the most rapidly-developing areas of marine science. It highlights the state-of-the-art concerning knowledge of the causes of ocean mixing, and a perspective on the implications for ocean circulation, climate, biogeochemistry and the marine ecosystem. This edited volume places a particular emphasis on elucidating the key future questions relating to ocean mixing, and emerging ideas and activities to address them, including innovative technology developments and advances in methodology. Ocean Mixing is a key reference for those entering the field, and for those seeking a comprehensive overview of how the key current issues are being addressed and what the priorities for future research are. Each chapter is written by established leaders in ocean mixing research; the volume is thus suitable for those seeking specific detailed information on sub-topics, as well as those seeking a broad synopsis of current understanding. It provides useful ammunition for those pursuing funding for specific future research campaigns, by being an authoritative source concerning key scientific goals in the short, medium and long term. Additionally, the chapters contain bespoke and informative graphics that can be used in teaching and science communication to convey the complex concepts and phenomena in easily accessible ways. Presents a coherent overview of the state-of-the-art research concerning ocean mixing Provides an in-depth discussion of how ocean mixing impacts all scales of the planetary system Includes elucidation of the grand challenges in ocean mixing, and how they might be addressed
Author: J.C.J. Nihoul
Publisher: Elsevier
ISBN: 0080870848
Category : Science
Languages : en
Pages : 557
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Book Description
This volume contains the proceedings of the 19th International Liège Colloquium on Ocean Hydrodynamics, the programme of which focused on the relationships between small-scale mixing and large-scale features, transports and processes. The presentation of papers on various methods of parameterization of small-scale turbulent mixing for numerical ocean models was particularly encouraged and this resulted in more than a third of the papers presented at the Colloquium dealing in one way or another with the parameterization problems; many of these papers demonstrate the direct results of modelling. These proportions are well reflected in this volume of proceedings and thus emphasize once more the importance of small-scale turbulence research for such vital practical applications as ocean modelling and forecasting.
Author:
Publisher: Academic Press
ISBN: 0123757215
Category : Science
Languages : en
Pages : 658
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Book Description
Elements of Physical Oceanography is a derivative of the Encyclopedia of Ocean Sciences, Second Edition and serves as an important reference on current physical oceanography knowledge and expertise in one convenient and accessible source. Its selection of articles—all written by experts in their field—focuses on ocean physics, air-sea transfers, waves, mixing, ice, and the processes of transfer of properties such as heat, salinity, momentum and dissolved gases, within and into the ocean. Elements of Physical Oceanography serves as an ideal reference for topical research. References related articles in physical oceanography to facilitate further research Richly illustrated with figures and tables that aid in understanding key concepts Includes an introductory overview and then explores each topic in detail, making it useful to experts and graduate-level researchers Topical arrangement makes it the perfect desk reference
Author: Ian Young
Publisher: World Scientific
ISBN: 9811208689
Category : Science
Languages : en
Pages : 396
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Book Description
Ocean Wave Dynamics is the most up-to-date book of its kind on the three main processes responsible for the generation and evolution of ocean waves: (i) atmospheric input from the wind, (ii) wave breaking and (iii) nonlinear interactions.Ocean waves are important for many reasons. They are the major environmental impact on in the design of coastal or offshore structures. Ocean waves are also fundamental to the processes of coastal flooding and beach erosion. They will play a major role in storm related coastal flooding which will rise in frequency as a result of sea level rise. Ocean waves are also an important part of the coupled ocean-atmosphere system. They determine the roughness of the ocean surface and hence have an impact on winds, fluxes of energy, gases and heat to the ocean and even the stability of ice sheets.Containing the latest research on ocean waves, it is a valuable resource for an overview of knowledge in this important field.Related Link(s)
