Exploration and Monitoring of the Underwater Environment of the Shelf Zone 1st Edition by I B Abbasov ISBN 978-1119488033 1119488036

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Product details: 

ISBN 10:   1119488036 

ISBN 13: 978-1119488033

Author: I B Abbasov

Dedicated to the unique developments of hydroacoustical equipment to monitor the sea coastal shelf environment, this groundbreaking unique study presents a survey of modern methods and technical monitoring facilities, including the diagnostics of underwater engineering when monitoring offshore.

There is still so much about the oceans that scientists do not know, and exploring the continental shelves of the world is a huge part of finding out more about these underwater environments. Further to that, it is extremely important that, while scientists and engineers explore and monitor the continental shelf, no damage is done to these precious environments. That is the needle that this study intends to thread, giving scientists and engineers a better method and processes for exploring these underwater mysteries, while protecting the environment and wildlife thriving beneath.

Written by a proven scientist in this area, this book is dedicated to the unique developments of hydroacoustical equipment to monitor the coastal shelf. The results of the original experimental sonar studies with application of the parametric antenna are presented. The book presents a survey of the modern methods and technical monitoring facilities of the coastal aqueous environment. The basic characteristics of the parametric antennas are given considering propagation of the acoustic waves in the environments with dispersion and acoustical absorption. The author and his colleagues consider the questions of formation of the parametric antenna field in layered-heterogeneous media and the peculiarities of sounding of the interfaces and bottom sediments. Ecological monitoring methods of the basic parameters of quality and condition of the aqueous environment are analyzed. The peculiarities of diagnostics of the underwater engineering constructions when monitoring the offshore strips are described.

For both veteran engineers and students in the field alike, this breakthrough study is a must-have for any scientific library concerned with studying the oceans and especially the continental shelf.

Table of contents: 

1 Monitoring of Aqueous Environment of the Continental Shelf: The Current State

Iftikhar B. Abbasov

1.1 Introduction

1.2 General Monitoring Tasks

1.3 Remote Monitoring with the Help of Satellites

1.4 Monitoring of Underwater Seismic Activity

1.5 Fish Stock Monitoring

1.6 Monitoring in the Marine Archeology

1.7 The Use of Underwater Vehicles for Geological Exploration

1.8 Use of Underwater Vehicles for Monitoring of Ecosystems

1.9 Modern Underwater Vehicles for Monitoring of Ecosystems

1.10 Hydro Acoustical Shelf Monitoring Systems

1.11 Conclusion References

2 Parametric Antennas in the Mediums with Hydrophysical Inhomogeneities: Theory and Experiment

Igor A. Kirichenko

2.1 Introduction

2.2 Assignment of the Task of Theoretical and Experiment Research of the Parametric Antennas in the Mediums with Hydro Physical Inhomogeneities

2.3 Methods of Solution of KhZK Equations Considering Hydrophysical Inhomogeneities

2.4 Measurement Procedure of the Field Characteristics of the Parametric Antenna and Backward Volume Scattering at Models of the Hydrophysical Inhomogeneities

2.5 The Results of Experimental Measurements of Characteristics of the Parametric Antenna Field and Backward Volume Scattering at Models of Hydrophysical Inhomogeneities

2.6 Discussion of the Results of the Theoretical and Experimental Research

2.7 Conclusion References

3 Research of the Phase Characteristics of Parametrical Radiators for Measuring Purposes

Vladimir V. Grivtsov

3.1 Introduction

3.2 Measurement Procedure of the Phase Structure of the Acoustic Field

3.3 Phase Portrait of the Field of the Parametric Antenna with Planar Transformer of Pumping

3.4 Phase Distributions in the Spherically Diverging Waves of the Parametrical Antenna

3.5 Parametrical Radiator Use for Hydro Acoustical Measurements in the Limited Size Tanks

3.6 Conclusion References

4 Influence of Layer-Discrete Areas on the Formation of the Direction Acoustic Parametric Antenna at the Diagnostic of the Water Environment

Nicolai P. Zagrai

4.1 Limitations of the Nonlinear Interaction Region

4.1.1 Statement of the Problem

4.1.2 Limitation of the Nonlinear Interaction Region by the General Surface of Round Piston Transformer of the Acoustic Parametric Antenna

4.1.3 Limitation of the Nonlinear Interaction Region by the General Surface of Rectangular Piston Transformer of the Acoustic Parametric Antenna

4.1.4 Limitation by the Incident Flat Surface

4.1.5 Limitation with Curved Surfaces

4.1.6 The Field of Acoustic Parametric Antenna with Layered-Non-Homogeneous Nonlinear Interaction Region

4.2 Nonlinear Interaction Region as a System of the Normal (Orthogonal) Discrete Plane-Parallel Layers. Statement of the Problem

4.3 Experimental Studies of the Field of Acoustic Parametric Antenna at Presence of the Layer, Plate and System of Layers in the Nonlinear Interaction Region

4.3.1 Liquid Layer

4.3.2 Plate

4.3.3 Incident Plate

4.3.4 System of Plates

4.4 Layers with Diffused Boundaries in the Nonlinear Interaction Region

4.4.1 On the Formation of the Field of an Acoustic Parametric Antenna in a Periodic Structure with Diffuse Boundaries

4.4.2 Application of the Immersion Method to Consider a System of Layers with Blurred Boundaries

4.5 Conclusion References

5 Experimental Research of Penetration of the Acoustic Inhomogeneous Plane Waves from Water into Air Alexander P. Voloshchenko and Sergey P. Tarasov

5.1 Introduction

5.2 Statement of the Problem

5.3 Method of Investigation

5.4 Results of the Study

5.5 Discussion

5.6 Conclusion References

6 Study of Nonlinear Interaction of Acoustic Waves Driven by Parametric Radiating Antenna During Sounding of Bottom Sediments

Yuri V. Dushenin and Mikhail S. Rybachek

6.1 Introduction

6.2 Statement of the Problem

6.3 Research Technique of the Basic PA Characteristics in BS at Normal Incidence to the Interface with Subsequent Excitation in BS of Longitudinal Waves

6.4 Results of Research of the Basic PA Characteristics in BS at Normal Incidence to the Interface with Subsequent Excitation of P-Waves in BS

6.5 Research Technique of the Basic PA Characteristics in BS at Incidence to the Interface at Angles Close to Critical, with Subsequent Excitation in BS of Shear Waves

6.6 The Results of Research of the Basic PA Characteristics in BS, at Incidence to the Interface at Angles, Close to Critical, with Subsequent Excitation of Shear Waves in BS

6.7 Discussion

6.8 Conclusion References

7 The Underwater Ultrasonic Equipment with the Nonlinear Acoustics Effect’s Application

Vadim Yu. Voloshchenko and Elizaveta V. Voloshchenko

7.1 Introduction

7.2 The Navigation System with Short Based Length

7.3 An Impulse Method for Broadband Acoustical Measurements

7.4 The Nonlinear Hydroacoustic Wavegraph

7.5 Conclusion References

8 The Research of Waters Eutrophication of the Gulf of Taganrog of the Sea of Azov For Ecological Monitoring Purposes

Alena Yu. Zhidkova, Natalia V. Gusakova and Viktor V. Petrov

8.1 Introduction

8.2 Problem Statement

8.3 Methods

8.4 Results

8.5 Discussion

8.6 Conclusion References

9 The Application Features of Sonar Systems for Control of Underwater Engineering Structures and Monitoring Area

9.1 Introduction

9.2 Procedure of Detailed Investigation of the Objects with the Help of Side Scan Sonar

9.3 Ecological Monitoring of the Water Bottom with Side Scan Sonar

9.4 Investigation of the Vertical Walls and Supports of Underwater Part of the Engineering Structures

9.5 Complexation of Side Scan Sonar with Parametric Profile Recorder

9.6 Extension of Antenna Bandwidths of Side Scan Sonar and Antennas of Pumping of the Parametric Profile Recorders

9.7 Conclusion References

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Tags: I B Abbasov, Exploration and Monitoring, Underwater Environment