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  • 1
    Online Resource
    Online Resource
    Cambridge :Cambridge University Press,
    Keywords: Geophysics--Fluid models. ; Electronic books.
    Description / Table of Contents: Geophysical fluid dynamics illustrates the rich interplay between mathematical analysis, nonlinear dynamics, statistical theories, qualitative models and numerical simulations. This self-contained introduction will suit a multi-disciplinary audience ranging from beginning graduate students to senior researchers. It is the first book following this approach and contains many recent ideas and results.
    Type of Medium: Online Resource
    Pages: 1 online resource (565 pages)
    Edition: 1st ed.
    ISBN: 9780511167584
    DDC: 550
    Language: English
    Note: Cover -- Half-title -- Title -- Copyright -- Contents -- Preface -- 1 Barotropic geophysical flows and two-dimensional fluid flows: elementary introduction -- 1.1 Introduction -- 1.2 Some special exact solutions -- Fourier series tool kit -- 1.2.1 Exact solutions for the Euler equations -- 1.2.2 Exact solutions with beta-effect and generalized Kolmogorov forcing -- 1.2.3 Rossby waves -- 1.2.4 Topographic effect in steady states -- 1.2.5 A dynamical solution with beta-plane and layered topography -- 1.2.6 Beta-plane dynamics with large-scale shear flow -- A test problem for dissipative mechanisms -- 1.3 Conserved quantities -- 1.3.1 Conservation of energy -- Conservation of energy for periodic flows -- 1.3.2 Large-scale and small-scale flow interaction via topography -- 1.3.3 Infinite number of conserved quantities - generalized enstrophy -- 1.3.4 Several conserved quantities -- 1.3.5 Summary of conserved quantities: periodic geometry -- 1.4 Barotropic geophysical flows in a channel domain - an important physical model -- 1.4.1 The impulse and conserved quantities -- 1.4.2 Conservation of circulation -- 1.4.3 Summary of conserved quantities: channel geometry -- 1.5 Variational derivatives and an optimization principle for elementary geophysical solutions -- 1.5.1 Some important variational derivatives -- 1.5.2 An optimization principle for elementary geophysical solutions -- 1.6 More equations for geophysical flows -- 1.6.1 The models -- 1.6.2 Relationships between various models -- Derivation of the barotropic one-layer model from the continuously stratified model -- Derivation of the two-layer model from the continuously stratified model -- Derivation of the one- and one-half-layer model from the two-layer model -- Derivation of the barotropic quasi-geostrophic model from the F-plane model -- References -- 2 The response to large-scale forcing. , 2.1 Introduction -- A remarkable identity -- 2.2 Non-linear stability with Kolmogorov forcing -- 2.2.1 Non-linear stability in restricted sense -- 2.2.2 Finite-dimensional dynamics on the ground modes and non-linear stability -- Fourier representation for the dynamic equations -- 2.2.3 Counter-example of unstable ground state modes dynamics for truncated inviscid flows -- 2.3 Stability of flows with generalized Kolmogorov forcing -- References -- 3 The selective decay principle for basic geophysical flows -- 3.1 Introduction -- 3.2 Selective decay states and their invariance -- 3.3 Mathematical formulation of the selective decay principle -- The Rossby waves degenerate into generalized Taylor vortices in the absence of the geophysical beta-plane effect. -- 3.4 Energy-enstrophy decay -- 3.5 Bounds on the Dirichlet quotient, A (t) -- 3.6 Rigorous theory for selective decay -- 3.6.1 Convergence to an asymptotic state -- 3.6.2 Convergence to the selective decay state -- 3.6.3 Stability of the selective decay states -- 3.6.4 Underlying simplifying mechanisms -- 3.7 Numerical experiments demonstrating facets of selective decay -- 3.7.1 Measure of anisotropy -- 3.7.2 Explicit solutions of the sinh-Poisson equation -- 3.7.3 Numerical examples -- References -- Appendix 1 Stronger controls on A (t) -- Appendix 2 The proof of the mathematical form of the selective decay principle in the presence of the beta-plane effect -- 4 Non-linear stability of steady geophysical flows -- 4.1 Introduction -- 4.2 Stability of simple steady states -- 4.2.1 Non-linear stability and the energy method -- 4.2.2 Simple states with topography, but no mean flow or beta-effect -- 4.2.3 Simple states with topography, mean flow, and beta-effect -- 4.3 Stability for more general steady states -- 4.4 Non-linear stability of zonal flows on the beta-plane. , 4.5 Variational characterization of the steady states -- References -- 5 Topographic mean flow interaction, non-linear instability, and chaotic dynamics -- 5.1 Introduction -- 5.2 Systems with layered topography -- 5.2.1 Hamiltonian structure -- 5.3 Integrable behavior -- 5.3.1 The case h = 0 -- 5.3.2 The case Beta = 0 -- 5.3.3 Single mode topography -- 5.4 A limit regime with chaotic solutions -- 5.4.1 Single mode topography -- 5.4.2 Interaction of non-linear resonances -- 5.4.3 Two modes in the topography: a perturbative Melnikov analysis -- 5.5 Numerical experiments -- 5.5.1 Perturbation of single mode topography -- 5.5.2 Two-mode layered topography and topographic blocking events -- 5.5.3 Random perturbations with multi-mode topography -- 5.5.4 Symmetry breaking perturbations and topographic blocking events -- References -- Appendix 1 -- Appendix 2 -- 6 Introduction to information theory and empirical statistical theory -- 6.1 Introduction -- 6.2 Information theory and Shannon's entropy -- 6.3 Most probable states with prior distribution -- 6.4 Entropy for continuous measures on the line -- 6.4.1 Continuous measure on the line -- 6.4.2 Entropy and maximum entropy principle -- 6.4.3 Coarse graining and loss of information -- 6.4.4 Relative entropy as a "distance" function -- 6.4.5 Information theory and the finite-moment problem for probability measures -- 6.5 Maximum entropy principle for continuous fields -- 6.6.1 The Prior distribution -- 6.6.2 Constraints on the potential vorticity distribution -- 6.6.3 Statistical predictions of the maximum entropy principle -- 6.6.4 Determination of the multipliers and geophysical effect -- 6.7 Application of the maximum entropy principle to geophysical flows with topography and mean flow -- 6.7.1 One-point statistics for potential vorticity and large-scale mean velocity and Shannon entropy. , 6.7.2 The constraints on the one-point statistics -- 6.7.3 Maximum entropy principle and statistical prediction -- 6.7.4 Determination of the multipliers and geophysical effects -- References -- 7 Equilibrium statistical mechanics for systems of ordinary differential equations -- 7.1 Introduction -- 7.2 Introduction to statistical mechanics for ODEs -- 7.2.1 The Liouville property -- 7.2.2 Evolution of probability measures and the Liouville equation -- 7.2.3 Conserved quantities and their ensemble averages -- 7.2.4 Shannon entropy and the maximum entropy principle -- 7.2.5 The most probable state and Gibbs measure -- 7.2.6 Ergodicity and time averaging -- 7.2.7 A simple example violating the Liouville property -- 7.3 Statistical mechanics for the truncated Burgers-Hopf equations -- 7.3.1 The truncated Burgers-Hopf systems and their conserved quantities -- 7.3.2 The Liouville property -- 7.3.3 The Gibbs measure and the prediction of equipartition of energy -- 7.3.4 Numerical evidence of the validity of the statistical theory -- 7.3.5 Truncated Burgers-Hopf equation as a model with statistical features in common with atmosphere -- A scaling theory for temporal correlations -- Numerical evidence for the correlation scaling theory -- 7.4 The Lorenz 96 model -- 7.4.1 Geophysical properties of the Lorenz 96 model -- Rossby waves -- 7.4.2 Equilibrium statistical theory for the undamped unforced L-96 model -- 7.4.3 Statistical properties of the damped forced and undamped unforced L96 models -- Rescaling the damped forced L96 model -- Linear stability of the mean state -- The bulk behavior of the rescaled problem -- The climatology of different forcing regimes in rescaled coordinates -- References -- 8 Statistical mechanics for the truncated quasi-geostrophic equations -- 8.1 Introduction -- 8.2 The finite-dimensional truncated quasi-geostrophic equations. , 8.2.1 The spectrally truncated quasi-geostrophic equations -- 8.2.2 Conserved quantities for the truncated system -- 8.2.3 Non-linear stability of some exact solutions the truncated system -- 8.2.4 The Liouville property -- 8.3 The statistical predictions for the truncated systems -- 8.4 Numerical evidence supporting the statistical prediction -- 8.5 The pseudo-energy and equilibrium statistical mechanics for fluctuations about the mean -- 8.6 The continuum limit -- 8.6.1 The case with a large-scale mean flow -- 8.6.2 The case without large-scale mean flow but with generic topography -- 8.6.3 The case with no geophysical effects -- 8.6.4 The case with no large-scale mean flow but with topography having degenerate spectrum -- High energy subcase -- 8.7 The role of statistically relevant and irrelevant conserved quantities -- References -- Appendix 1 -- 9 Empirical statistical theories for most probable states -- 9.1 Introduction -- 9.2 Empirical statistical theories with a few constraints -- 9.2.1 The energy-circulation empirical theory with a general prior distribution -- 9.2.2 The energy-circulation impulse theory with a general prior distribution -- 9.3 The mean field statistical theory for point vortices -- 9.3.1 Derivation of the mean field point-vortex theory from an empirical statistical theory -- 9.3.2 Complete statistical mechanics for point vortices -- The dynamics of point vortices in the plane -- Liouville property -- The mean field limit equations as N … -- 9.4 Empirical statistical theories with infinitely many constraints -- 9.4.1 Maximum entropy principle incorporating all generalized enstrophies -- 9.4.2 The most probable state and the mean field equation -- 9.5 Non-linear stability for the most probable mean fields -- References. , 10 Assessing the potential applicability of equilibrium statistical theories for geophysical flows: an overview.
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  • 2
    Online Resource
    Online Resource
    New York :Columbia University Press,
    Keywords: Mammals, Fossil - Asia. ; Electronic books.
    Description / Table of Contents: The first textbook devoted to the late Cenozoic (Neogene) mammalian biostratigraphy and geochronology of Asia, this volume deploys cutting edge biostratigraphical and geochemical dating methods to map the emergence of mammals across the continent. Written by specialists working in a variety of Asian regions, it uses data from many basins with spectacular fossil records to establish a groundbreaking geochronologic framework for land mammal evolution. Asia's violent tectonic history has resulted in some of the world's most varied topography, and its high mountain ranges and intense monsoon climates have spawned widely diverse environments over time. These geologic conditions profoundly influenced the evolution of Asian mammals and their migration into Europe, Africa, and North America. Focusing on amazing new fossil finds that have redefined Asia's role in mammal evolution, this textbook synthesizes information from a range of field studies on Asian mammals and biostratigraphy, helping to trace the histories and movements of extinct and extant mammals from various major groups and all northern continents, and providing geologists from all disciplines with a richer understanding of a variety of Asia's terrains.
    Type of Medium: Online Resource
    Pages: 1 online resource (759 pages)
    Edition: 1st ed.
    ISBN: 9780231520829
    Series Statement: NONE
    DDC: 569.095
    Language: English
    Note: Intro -- { CONTENTS } -- Introduction: Toward a Continental Asian Biostratigraphic and Geochronologic Framework -- PART I: EAST ASIA -- 1. Neogene Land Mammal Staegs/Ages of China: Toward the Goal to Establish an Asian Land Mammal Stage/Age Scheme -- 2. North China Neogene Biochronology: A Chinese Standard -- 3. A Single-Point Base Definition of the Xiejian Age as an Exemplar for Refining Chinese Land Mammal Ages -- 4. Early Miocene Xiejiahe and Sihong Fossil Localities and Their Faunas, Eastern China -- 5. Neogene Faunal Succession and Biochronology of Central Nei Mongol (Inner Mongolia) -- 6. Mammalian Biochronology of the Late Miocene Bahe Formation -- 7. Stratigraphy and Paleoecology of the Classical Dragon Bone Localities of Baode County, Shanxi Province -- 8. Review of the Litho-, Bio-, and Chronostratigraphy in the Nihewan Basin, Hebei, China -- 9. Late Cenozoic Biostratigraphy of the Linxia Basin, Northwestern China -- 10. Neogene Mammalian Biostratigraphy and Geochrnology of the Tibetan Plateau -- 11. Hominoid-Producing Localities and Biostratigraphy in Yunnan -- 12. Miocene Land Mammals and Stratigraphy of Japan -- 13. Pliocene Land Mammals of Japan -- PART II: SOUTH AND SOUTHEAST ASIA -- 14. The Siwaliks and Neogene Evolutionary Biology in South Asia -- 15. The Neogene Siwaliks of the Potwar Plateau, Pakistan -- 16. Mammalian Neogene Biostratigraphy of the Sulaiman Province, Pakistan -- 17. Indian Neogene Siwalik Mammalian Biostratigraphy: An Overview -- 18. Paleobiogeography and South Asian Small Mammals: Neogene Latitudinal Faunal Variation -- 19. Advances in the Biochronology and Biostratigraphy of the Continental Neogene of Myanmar -- PART III: NORTH AND CENTRAL ASIA -- 20. Miocene Mammal Biostratigraphy of Central Mongolia (Valley of Lakes): New Results. , 21. Late Cenozoic Mammal Faunas of the Baikalian Region: Composition, Biochronology, Disperasal, and Correlation with Central Asia -- 22. New Data on Miocene Biostratigraphy and Paleoclimatology of Olkhon Islan (Lake Baikal, Siberia) -- PART IV: WEST ASIA AND ADJACENT REGIONS -- 23. Late Miocene Mammal Localities of Eastern Europe and Western Asia -- 24. Late Miocene (Turolian) Vertebrate Faunas from Southern European Russia -- 25. Recent Advances in Paleobiological Reserach of the Late Miocene Maragheh Fauna, Northwest Iran -- 26. A Review of the Neogene Succession of the Muridae and Dipodidae from Anatolia, wiht Special Reference to Taxa Known from Asia and/or Europe -- 27. Late Miocene Fossils from the Baynunah Formation, United Arab Emirates: Summary of a Decade of New Work -- 28. Neogene Mammal Biostratigraphy and Chronology of Greece -- PART V: ZOOGEOGRAPHY AND PALEOECOLOGY -- 29. Contintental-Scale Patterns in Neogene Mammal Community Evolution and Biogeography: A Europe-Asia Perspective -- 30. Intercontinental Dispersals of Sicistine Rodents (Sicistinae, Dipodidae, Rodentia) Between Eurasia and North America -- 31. Paeleodiatary Comparisons of Ungulates Between the Late Miocene of China, and Pikermi and Samos in Greece -- List of Contributors -- Taxonomic Index -- General Index.
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  • 3
    Online Resource
    Online Resource
    New York :Columbia University Press,
    Keywords: Dogs. ; Canis, Fossil. ; Dogs--Evolution. ; Electronic books.
    Description / Table of Contents: No detailed description available for "Dogs".
    Type of Medium: Online Resource
    Pages: 1 online resource (303 pages)
    Edition: 1st ed.
    ISBN: 9780231509435
    DDC: 599.77/2
    Language: English
    Note: Intro -- Cover -- Half title -- Title -- Copyright -- Contents -- Preface -- Acknowledgments -- 1. Methods of Study and the Place of Dogs in Nature -- 2. The Origin of Canids and Other Doglike Carnivorous Mammals -- 3. Diversity: Who Is Who in the Dog Family -- 4. Anatomy and Function: How the Parts Work -- 5. Hunting and Social Activity -- 6. Changing Environments and Canid Evolution -- 7. Going Places: Braving New Worlds -- 8. Domestic Dogs -- Appendix 1. Canid Species and Classification -- Appendix 2. Phylogenetic Tree of the Family Canidae -- Glossary -- Further Reading -- Index -- List of Plates.
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 625 (1991), S. 0 
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 710 (1994), S. 0 
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 689 (1993), S. 0 
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 7
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    Massachusetts Institute of Technology and Woods Hole Oceanographic Institution
    Publication Date: 2022-05-25
    Description: Submitted in partial fulfillment of the requirements for the degree of Master of Science at the Massachusetts Institute of Technology and the Woods Hole Oceanographic Institution September 1989
    Description: This thesis studies mixing and convection in a rectangular basin driven by a specified heat flux at the surface. A numerical model is constructed for this purpose. The main focus of the study is on the density and circulation structure resulting from the thermal forcing. In chapter two, a simple vertical one-dimensional model is developed to examine the mixing processes under a given surface heat flux. In order to simulate strong vertical mixing in the region where stratification is unstable, turbulent processes are modeled by a convective overturning parameterization of eddy viscosity and diffusivity. The results show that the density structure is strongly affected by the convective overturning adjustment as surface cooling prevails, and the resulting density field is nearly depth independent. In chapter three, a more complicated two-dimensional model is constructed to simulate mixing and circulation in a vertical rectangular basin with rigid boundaries. The aspect ratio of the basin ranges from 1 to 0.001 and Rayleigh number from 104 to 2 x 1012. It is found that the circulation pattern is dominated by these two important numbers. The roles of density overturning and density-momentum overturning mixing are further investigated. The results show that the convective overturning not only homogenizes the density field in the unstably stratified region but also contributes to increase the circulation. A crude scale analysis of the system shows that the characteristics of the density and momentum fields from the analysis agree well with the numerical results.
    Keywords: Ocean circulation
    Repository Name: Woods Hole Open Access Server
    Type: Thesis
    Format: application/pdf
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  • 8
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    Unknown
    Massachusetts Institute of Technology and Woods Hole Oceanographic Institution
    Publication Date: 2022-05-26
    Description: Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy at the Massachusetts Institute of Technology and the Woods Hole Oceanographic Institution September 1992
    Description: This study concerns the barotropic interactions between a mesoscale eddy and a straight monotonic bottom topography. Through simple to relatively complicated modeling effort, some of the fundamental properties of the interaction are investigated. In chapter two, the fundamental aspects of the interaction are examined using a simple contour dynamics model. With the simplest model configuration of an ideal vortex and a step topography, the basic dynamical features of the observed oceanic eddy-topography interaction are qualitatively reproduced. The results consist of eddy-induced cross-topography exchange, formation of topographic eddies, eddy propagation and generation of topographic waves. In chapter three, a more complicated primitive equation model is used to investigate a mesoscale eddy interacting with an exponential continental shelf/slope topography on both f and β-planes. The f-plane model recasts the important features of chapter two. The roles of the eddy size and strength and the geometry of topography are studied. It is seen that the multiple anticyclonic eddy-slope interactions strongly affect the total cross-slope volume transport and the evolution of both the original anticyclone and the topographic eddy. Since a cyclone is trapped at the slope and eventually moves on to the slope, it is most effective in causing perturbation on the shelf and slope. The responses on the shelf and slope are mainly wavelike with dispersion relation obeying that of the free shelf-trapped wave modes. On the β-plane, the problem of an eddy colliding onto a continental shelf/slope from a distance with straight or oblique incident angles is investigated. It is found that the straight eddy incident is more effective in achieving large onslope eddy penetration distance than the oblique eddy incident. The formation of a dipole-like eddy pair consisting of the original anticyclone and the topographic cyclone acts to suppress the eddy decay due to long Rossby wave radiation. A weak along-slope current near the edge of the slope is found, which is part of a outer slope circulation cell originated from the Rossby wave wake trailing the propagating eddy. Model-observation comparisons in_chapter four show favorable qualitative agreement of the model results with some of the observed events in the eastern U.S. continental margins and in the Gulf of Mexico. The model results give dynamical interpretations to some observed features of the oceanic eddy-topography interactions and provide enlightening insight into the problem.
    Keywords: Eddies ; Ocean currents ; Fluid dynamics
    Repository Name: Woods Hole Open Access Server
    Type: Thesis
    Format: application/pdf
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  • 9
    Publication Date: 2013-08-31
    Description: [1]  One of the primary goals for the Visible Infrared Imaging Radiometer Suite (VIIRS) onboard the Suomi National Polar-orbiting Partnership (SNPP) is to provide the science and user communities with the data continuity of the Environmental Data Records (EDR) (or Level-2 products) over global oceanic waters for various research and applications, including assessment of climatic and environmental variations. The ocean color EDR is one of the most important products derived from VIIRS. Since ocean color EDR is processed from the upstream Sensor Data Records (SDR) (or Level-1B data), the objective of this study is to evaluate the impact of the SDR on the VIIRS ocean color EDR. The quality of the SDR relies on pre-launch sensor characterizations as well as on-orbit radiometric calibrations, which are used to develop the sensor F-factor lookup tables (F-LUTs). VIIRS F-LUTs derived from solar and lunar calibrations have been used in processing data from the VIIRS Raw Data Records (RDR) (or Level-0 data) to SDR. In this study, three sets of F-LUTs with different generation schemes have been used to reprocess the SDR and then the ocean color EDR for product evaluations. VIIRS ocean color products are compared with in situ data from the Marine Optical Buoy (MOBY) and products from the Moderate Resolution Imaging Spectroradiometer (MODIS) on the satellite Aqua. It is found that the data quality of VIIRS operational ocean color products before 6 February 2012 is poor due to the inappropriate use of the at-launch F-LUTs for the SDR calibration, and that the recently updated VIIRS F-LUTs have significantly improved the SDR and ocean color EDR. Using reprocessed SDR with updated F-LUTs and including vicarious calibration, VIIRS ocean color EDR products are consistent with those from MODIS-Aqua in global deep waters. Although there are still some significant issues with VIIRS ocean color EDR, e.g., poor data quality over coastal regions, our results demonstrate that VIIRS has great potential to provide the science and user communities with consistently high quality global ocean color data records that are established from heritage ocean color sensors such as MODIS-Aqua.
    Print ISSN: 0148-0227
    Topics: Geosciences , Physics
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  • 10
    Publication Date: 2014-04-12
    Description: Langmuir DOI: 10.1021/la500049w
    Print ISSN: 0743-7463
    Electronic ISSN: 1520-5827
    Topics: Chemistry and Pharmacology
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