Generation of Mid-ocean Eddies PDF Download

Author: Brian K. Arbic
Publisher:
ISBN:
Category : Baroclinicity
Languages : en
Pages : 290

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Author: William R. Holland
Publisher:
ISBN:
Category : Eddies
Languages : en
Pages : 126

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Book Description

Author: P.H. LeBlond
Publisher: Elsevier
ISBN: 0080879772
Category : Science
Languages : en
Pages : 617

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Book Description
This is a book which will be welcomed not only by researchers and engineers, but also by teachers and students, as it contains the only comprehensive review of the dynamics of ocean waves. Existing books are now either out of date or restricted to specialized aspects of the subject, whereas this book covers all types of ocean waves, ranging from capillary to planetary waves. Because of its completeness of coverage, its use of elementary mathematics and the provision of numerous problems and exercises, the book will be an indispensable text for everyone. It is completed by a very lengthy bibliography which includes many references to the Russian literature.

Author: Lorenz Magaard
Publisher:
ISBN:
Category : Eddies
Languages : en
Pages : 556

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Author:
Publisher:
ISBN:
Category : Marine meteorology
Languages : en
Pages : 764

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Author: A. V. Bobrovich
Publisher:
ISBN:
Category : Earthquakes
Languages : en
Pages :

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Book Description

Author: Feng Nan
Publisher: Frontiers Media SA
ISBN: 2832530915
Category : Science
Languages : en
Pages : 226

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Book Description

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: Changheng Chen
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description
The discovery of multiple nearly zonal oceanic jets enriches the classical view of mid-latitude ocean circulation, which was thought to be dominated by turbulent eddies and large-scale oceanic gyres. These jets emerge as a result of baroclinic instability and are maintained by baroclinic eddies. Potential importance of interactions of these ocean currents with major topographic features, such as the mid-Atlantic ridge, calls for the studies of the effects of bottom topography on the dynamics of eddies and the eddy-driven jets. The importance of bottom topography in the linear baroclinic instability of zonal flows on the beta-plane is examined by using analytical calculations and a quasi-geostrophic (QG) eddy-resolving numerical model. The particular focus is on the effects of a zonal topographic slope, which are compared with the effects of a meridional slope. A zonal slope always destabilizes background zonal flows that are otherwise stable in the absence of topography, regardless of the slope magnitude, whereas the meridional slopes stabilize/destabilize zonal flows only through changing the lower-level background potential vorticity (PV) gradient beyond a known critical value. Growth rates, phase speeds and vertical structure of the growing solutions strongly depend on the slope magnitude. In the numerical simulations configured with an isolated meridional ridge, unstable modes develop on both sides of the ridge and propagate eastward of the ridge, in agreement with our analytical results. In the second part of this study, we describe a novel mechanism for the generation of oceanic alternating jets by topographic ridges. The dynamics of these jets is examined using a baroclinic QG model configured with an isolated meridional ridge. Zonal topographic slopes of the ridge lead to the formation of a system of currents, consist- ing of mesoscale eddies, meridional currents over the ridge, and multiple zonal jets in the far field. Dynamical analysis shows that transient eddies are vital in sustaining the deep meridional currents, which in turn play a key role in the upper-layer PV balance. The zonal jets owe their existence to the eddy forcing over the ridge but are maintained by the Reynolds and form stresses in the far field. Locally nonzonal mean currents are shown to produce zonal jets in the far field, but the presence of local vorticity source appears to be the truly fundamental cause of jet existence. We conclude that local nonzonality of the mean PV contours, due to either a topographic ridge or a nonzonal background flow, can generate multiple zonal jets through a remote mechanism. Lastly, we explore the relationship between eddies and striations in a baroclinic double gyre ocean. Results show that alternating vertically coherent striations exist in the eastern part of the double gyre in short time mean field. Both the baroclinic QG model simulation and the analysis of altimetry sea level anomalies suggest that striations are intrinsically associated with eddy trains. Eddy vorticity forcing is closely associated with the striations and tends to drive the striations to drift meridionally. The concept of eddies being intrinsically related to striations helps to come up with a better parameterization scheme to represent the effects of eddies/striations in comprehensive models.

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