Author: D. Lee Harris
Publisher:
ISBN:
Category : Water waves
Languages : en
Pages : 16
Book Description
The Analysis of Wave Records
Experiments in Wave Record Analysis
Author: Jose Luis Goncalves Cardoso
Publisher:
ISBN:
Category : Ocean waves
Languages : en
Pages : 292
Book Description
By examining the relationship of the individual waves in an ocean wave record and the power density spectrum (PDS), it is demonstrated that the PDS conventionally obtained using spectral analysis can be reasonably approximated, except at the very low frequency end, by a pseudo-power density spectrum constructed from the individual heights and periods contained in the record. The very low frequencies seen in the side bands of the PDS are examined as products of amplitude modulation by analogy with simulated wave records and as an indication of the presence of wave groups. In addition, wave groups are identified and their properties determined in 19 selected ocean wave records by integrating the wave record using the procedure of Funke and Mansard (1979). (Author).
Publisher:
ISBN:
Category : Ocean waves
Languages : en
Pages : 292
Book Description
By examining the relationship of the individual waves in an ocean wave record and the power density spectrum (PDS), it is demonstrated that the PDS conventionally obtained using spectral analysis can be reasonably approximated, except at the very low frequency end, by a pseudo-power density spectrum constructed from the individual heights and periods contained in the record. The very low frequencies seen in the side bands of the PDS are examined as products of amplitude modulation by analogy with simulated wave records and as an indication of the presence of wave groups. In addition, wave groups are identified and their properties determined in 19 selected ocean wave records by integrating the wave record using the procedure of Funke and Mansard (1979). (Author).
Basic Wave Analysis
Author: Enders A. Robinson
Publisher:
ISBN: 9780931830563
Category : Seismic prospecting
Languages : en
Pages : 388
Book Description
The purpose of this book is to provide the information required for understanding the fundamental aspects of the elaborate computer processing schemes prevalent in exploration geophysics. Basic Wave Analysis has three parts. Part 1 addresses velocity analysis. The correct determination of velocity is the most important problem in seismic exploration, and an understanding of velocity analysis is a valuable asset for a geophysicist. Part 2 discusses raypath analysis. Raypaths provide a geometrical picture of how waves travel, so that a person can visualize raypaths in their imagination. Geometrical pictures are as important in seismology as they are in optics. Part 3 addresses wavefront analysis. A person cannot easily visualize traveling wavefronts in their imagination; however, a computer can follow their motion, and give the geophysicist the final outcome. Knowledge of wavefront analysis helps a geophysicist understand many modern computer methods. This book has not been written to address advanced subjects. Rather, it concentrates on the basic concepts of Fermat and Huygens to explore and understand basic wave analysis. This book is based upon inventive science. It deals with ideas, and not with numerical algorithms. It does not explain the details the many migration and inversion methods use, but it does provide readers with the tools needed to make those topics more understandable. The three parts of this book are in the order of increasing difficulty, and the most important part is Part 1, because velocity analysis is central to every seismic investigation.
Publisher:
ISBN: 9780931830563
Category : Seismic prospecting
Languages : en
Pages : 388
Book Description
The purpose of this book is to provide the information required for understanding the fundamental aspects of the elaborate computer processing schemes prevalent in exploration geophysics. Basic Wave Analysis has three parts. Part 1 addresses velocity analysis. The correct determination of velocity is the most important problem in seismic exploration, and an understanding of velocity analysis is a valuable asset for a geophysicist. Part 2 discusses raypath analysis. Raypaths provide a geometrical picture of how waves travel, so that a person can visualize raypaths in their imagination. Geometrical pictures are as important in seismology as they are in optics. Part 3 addresses wavefront analysis. A person cannot easily visualize traveling wavefronts in their imagination; however, a computer can follow their motion, and give the geophysicist the final outcome. Knowledge of wavefront analysis helps a geophysicist understand many modern computer methods. This book has not been written to address advanced subjects. Rather, it concentrates on the basic concepts of Fermat and Huygens to explore and understand basic wave analysis. This book is based upon inventive science. It deals with ideas, and not with numerical algorithms. It does not explain the details the many migration and inversion methods use, but it does provide readers with the tools needed to make those topics more understandable. The three parts of this book are in the order of increasing difficulty, and the most important part is Part 1, because velocity analysis is central to every seismic investigation.
Ocean Swell Wave Groups from Wave Record Analysis
Author: Raymond C. Smith
Publisher:
ISBN:
Category : Ocean waves
Languages : en
Pages : 96
Book Description
Publisher:
ISBN:
Category : Ocean waves
Languages : en
Pages : 96
Book Description
Characteristics of Wave Records in the Coastal Zone
Author: D. Lee Harris
Publisher:
ISBN:
Category : Ocean waves
Languages : en
Pages : 52
Book Description
Publisher:
ISBN:
Category : Ocean waves
Languages : en
Pages : 52
Book Description
Comparison of Pressure and Staff Wave Gage Records
Author: Dinorah C. Esteva
Publisher:
ISBN:
Category : Hydrological instruments
Languages : en
Pages : 16
Book Description
Publisher:
ISBN:
Category : Hydrological instruments
Languages : en
Pages : 16
Book Description
The Accuracy of Present Wave Forecasting Methods
Author: Willard J. Pierson
Publisher:
ISBN:
Category : Beach erosion
Languages : en
Pages : 82
Book Description
Publisher:
ISBN:
Category : Beach erosion
Languages : en
Pages : 82
Book Description
Field Wave Gaging Program, Wave Data Analysis Standard
Author: Marshal D. Earle
Publisher:
ISBN:
Category : Hydrodynamics
Languages : en
Pages : 52
Book Description
Publisher:
ISBN:
Category : Hydrodynamics
Languages : en
Pages : 52
Book Description
The Wave Record Program at CERC
Author: John M. Darling
Publisher:
ISBN:
Category : Ocean waves
Languages : en
Pages : 48
Book Description
The paper presents a summary and history of the wave recording program at the Coastal Engineering Research Center (CERC) and its predecessor, the Beach Erosion Board (BEB). There is a brief description of the types of sensors and recorders that have been used, and of the methods of analysis utilized. The main body of the paper is a listing of the wave gage stations, their locations, date of establishment, equipment used, present status, and periods of time over which records and analyses have been made. This listing is followed by a list of stations which have supplied visual-observation records in a program made possible by the cooperation of the United States Coast Guard. The location of each station is given along with the date of establishment, present status, and periods of time for which observations have been made. (Author).
Publisher:
ISBN:
Category : Ocean waves
Languages : en
Pages : 48
Book Description
The paper presents a summary and history of the wave recording program at the Coastal Engineering Research Center (CERC) and its predecessor, the Beach Erosion Board (BEB). There is a brief description of the types of sensors and recorders that have been used, and of the methods of analysis utilized. The main body of the paper is a listing of the wave gage stations, their locations, date of establishment, equipment used, present status, and periods of time over which records and analyses have been made. This listing is followed by a list of stations which have supplied visual-observation records in a program made possible by the cooperation of the United States Coast Guard. The location of each station is given along with the date of establishment, present status, and periods of time for which observations have been made. (Author).
Results from the CERC Wave Measurement Program
Author: Edward F. Thompson
Publisher:
ISBN:
Category : Coastal engineering
Languages : en
Pages : 24
Book Description
Publisher:
ISBN:
Category : Coastal engineering
Languages : en
Pages : 24
Book Description