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Sound Propagation through the Stochastic Ocean.
Key discoveries in the field of statistical ocean acoustics over the last 35 years are addressed with illustrations from ocean observations.
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
New York :
Cambridge University Press,
2016.
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| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Cover; Half-title; Title page; Copyright information; Dedication; Table of contents; Foreword; Preface; Notation; PART I Introduction and Prerequisites; 1 Sound Propagation through the Stochastic Ocean; 1.1 Introduction and Historical Background; 1.1.1 Ocean Dynamics and Fluctuations; 1.1.2 Theory of Sound Propagation; 1.2 Three Decades of Development: Observations; 1.2.1 Deep Water; 1.2.2 Emergence of Shallow-Water Acoustics; 1.2.3 Ocean Sound-Speed Spectrum; 1.3 Three Decades of Development: Theory; 1.3.1 Ray Theory; 1.3.2 Weak Fluctuation Theory; 1.3.3 Path Integral Theory.
- 1.3.4 Coupled-Mode Transport Theory1.4 Where We Stand; 1.5 Utilizing This Book; 2 Acoustical Prerequisites; 2.1 Introduction; 2.2 Fundamental Equations of Hydrodynamics; 2.2.1 Parabolic Wave Equation; 2.3 Character of the Oceanic Acoustic Waveguide; 2.3.1 Canonical Sound-Speed Profiles; 2.3.2 Sound-Speed Fluctuations due to Internal Waves; 2.3.3 Example Profiles; 2.3.4 Attenuation of Sound; 2.4 Rays; 2.4.1 Physical Picture and Basic Equations; 2.4.2 Ray Theory: Asymptotic Analysis; 2.4.3 Ray Amplitude and Stability; 2.4.4 Ray Chaos: Introduction; 2.4.5 Ehrenfest Theorem.
- 2.4.6 Rays in a Range-Independent Ocean2.5 Fresnel Zones and Ray Tubes; 2.6 Born and Rytov Approximations; 2.6.1 Relation to Amplitude and Phase; 2.6.2 Relationship between Born and Rytov Solutions; 2.7 Path Integrals; 2.7.1 Variational Approach to Ray Propagation; 2.7.2 Path Integrals: A Qualitative Discussion; 2.7.3 Formulation of the Path Integral; 2.7.4 Solution of the Parabolic Equation as a Path Integral; 2.8 Normal Modes; 2.8.1 Coupled Mode Equations; 2.8.2 Adiabatic Theory; 2.8.3 Vertical Modes, Horizontal Rays; 2.8.4 Modes in a Range-independent Ocean.
- Appendix A Green's Functions and the Fresnel ZoneAppendix B WKB Modes; 3 Stochastic Ocean Internal Waves; 3.1 Introduction; 3.2 Fundamental Equations of Hydrodynamics; 3.2.1 Ray Theory: Local Plane Waves; 3.2.2 Modal Solutions; 3.2.3 WKB Analysis; 3.3 Garrett-Munk Internal-Wave Model; 3.3.1 Other Useful Forms of the GM Spectrum; 3.3.2 Maximum Internal-Wave Mode Number; 3.3.3 Internal-Wave Correlation Scales; 3.3.4 Modifications to GM; 3.4 Observations; 3.4.1 Deep Ocean: Mid-Latitude; 3.4.2 Seamounts, Slopes, and Canyons; 3.4.3 Continental Shelves; 3.4.4 Arctic and High Latitude.
- 3.4.5 Equator3.5 Other Sources of Stochastic Sound-Speed Structure; 3.5.1 Spice; 3.5.2 Vortical Motions; Appendix A An Internal-Wave Model with an Exponential Correlation Function; Appendix B Monte Carlo Simulation; 4 Introduction to Acoustic Fluctuations; 4.1 Origin of Phase and Amplitude Fluctuations; 4.1.1 Weak Fluctuations; 4.1.2 Strong Fluctuations: Wave Front Folding and Interference; 4.1.3 Ray Micro-multipath; 4.1.4 A Simple Model of Microray Interference; 4.1.5 Modal-multipath: Mode Coupling ; 4.2 Acoustic Sensitivity to Internal Waves.