Shore Wave Modulation Due To Infragravity Waves In The Nearshore Zone With Applications
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Shore Wave Modulation Due To Infragravity Waves In The Nearshore Zone With Applications
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Author : Saad M. M. Abdelrahman
language : en
Publisher:
Release Date : 1986
Shore Wave Modulation Due To Infragravity Waves In The Nearshore Zone With Applications written by Saad M. M. Abdelrahman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Littoral drift categories.
The omni-present low frequency wave motion (30-300 sec) contains a substantial fraction of the total wave energy inside the surf zone. A more complete description of nearshore wave processes considers incident short period waves superposed on, and interacting with, long standing waves. The wind waves are modulated in amplitude, wavenumber and direction due to relatively slowly varying depth changes caused by the long waves. The energy in the wind wave band is enhanced by side band growth at the sum and difference frequencies of short and long waves (order 15% at the shoreline). The modulation is identified in the analysis of field data as a positive correlation between the long waves and the wind wave envelope near the shoreline. Considering oblique incident waves, a steady longshore current showing a non-vanishing current at the shoreline is found as a result of the non-linear interaction between monochromatic incident and infragravity waves. An analytical solution describing the unsteadiness of the longshore current is developed. Keywords include: Infragravity, Longshore Current, Sediment transport, and Surf zone dynamics. (Theses).
Short Wave Modulation Due To Infragravity Waves In The Nearshore Zone With Applications
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Author : Saad M. M. Abdelrahman
language : en
Publisher:
Release Date : 1986
Short Wave Modulation Due To Infragravity Waves In The Nearshore Zone With Applications written by Saad M. M. Abdelrahman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with categories.
Infragravity Waves In The Nearshore Zone
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Author : Kent K. Hathaway
language : en
Publisher:
Release Date : 1998
Infragravity Waves In The Nearshore Zone written by Kent K. Hathaway and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Coastal engineering categories.
This report summarizes the present state of knowledge on infragravity wave motions (nominally 0.003 to 0.05 Hz). Theoretical and observational studies are presented. Most of the studies discussed herein have been published elsewhere, however a few studies discussed in chapter 4 are presented for the first time in this report Measurements of nearshore waves and currents have shown that a significant amount of the total energy can be contained in the infragravity band, and on highly dissipative beaches the infragravity wave variance often dominates over energy in the incident wave band(0.05 to 0.3 Hz). An 8-month data set of infragravity variance measured at 8-m-depth at the shoreline (runup) was compared with incident wave variance. Analysis of the 8-m-depth data showed that high mode edge waves account for about 50 percent of the total infragravity variance, and as high as 80 percent at times. Significant edge wave heights greater than 20 cm were observed at the 8-m depth. Infragravity wave variance was shown to have a higher correlation with swell variance (C = 0.95) than with sea variance (C = 0.61). This report was motivated, in part, by the need to determine the significance of infragravity waves on coastal erosion and structure damage and by the desire to improve coastal engineering solutions to problems associated with nearshore processes.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1987
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with Aeronautics categories.
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Masters Theses In The Pure And Applied Sciences
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Author : Wade H. Shafer
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Masters Theses In The Pure And Applied Sciences written by Wade H. Shafer and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thougtit that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna tional publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 31 (thesis year 1986) a total of 11 ,480 theses titles trom 24 Canadian and 182 United States universities. We are sure that this broader base tor these titles reported will greatly enhance the value ot this important annual reterence work. While Volume 31 reports theses submitted in 1986, on occasion, certain univer sities do re port theses submitted in previousyears but not reported at the time.
Technical Reports Awareness Circular Trac
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Author :
language : en
Publisher:
Release Date : 1987-02
Technical Reports Awareness Circular Trac written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987-02 with Science categories.
Infragravity Waves In The Nearshore Zone
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Author : Kent K. Hathaway
language : en
Publisher:
Release Date : 1998
Infragravity Waves In The Nearshore Zone written by Kent K. Hathaway and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Coastal engineering categories.
This report summarizes the present state of knowledge on infragravity wave motions (nominally 0.003 to 0.05 Hz). Theoretical and observational studies are presented. Most of the studies discussed herein have been published elsewhere, however a few studies discussed in chapter 4 are presented for the first time in this report Measurements of nearshore waves and currents have shown that a significant amount of the total energy can be contained in the infragravity band, and on highly dissipative beaches the infragravity wave variance often dominates over energy in the incident wave band(0.05 to 0.3 Hz). An 8-month data set of infragravity variance measured at 8-m-depth at the shoreline (runup) was compared with incident wave variance. Analysis of the 8-m-depth data showed that high mode edge waves account for about 50 percent of the total infragravity variance, and as high as 80 percent at times. Significant edge wave heights greater than 20 cm were observed at the 8-m depth. Infragravity wave variance was shown to have a higher correlation with swell variance (C = 0.95) than with sea variance (C = 0.61). This report was motivated, in part, by the need to determine the significance of infragravity waves on coastal erosion and structure damage and by the desire to improve coastal engineering solutions to problems associated with nearshore processes.
Nonlinear Wave Dynamics Selected Papers Of The Symposium Held In Honor Of Philip L F Liu S 60th Birthday
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Author : Patrick Lynett
language : en
Publisher: World Scientific
Release Date : 2009-02-04
Nonlinear Wave Dynamics Selected Papers Of The Symposium Held In Honor Of Philip L F Liu S 60th Birthday written by Patrick Lynett and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-02-04 with Technology & Engineering categories.
In September 2006, research leaders in the field of coastal engineering, fluid mechanics, and wave theory met at Cornell University to celebrate the 60th birthday of Prof. Philip L-F Liu. This volume is a compilation of the research papers presented at the symposium, and includes both review and new research papers. Topics such as nonlinear wave theory, tsunamis, wave-structure interaction, turbulence, and modeling of complex sediment transport are discussed in this volume. All of the contributing authors are research collaborators of Prof. Liu, and include leaders in coastal engineering such as Maarten Dingemans, Hwung-Hweng Hwung, Nobu Kobayashi, Inigo Losada, Hocine Oumeraci, Costas Synolakis, and Harry Yeh.
The Measurement And Interpretation Of Infragravity Shore Normal Surf Zone Water Surface Elevation Data
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Author : R. C. Nelson
language : en
Publisher:
Release Date : 1989
The Measurement And Interpretation Of Infragravity Shore Normal Surf Zone Water Surface Elevation Data written by R. C. Nelson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Coastal engineering categories.
Government Reports Annual Index
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Author :
language : en
Publisher:
Release Date : 1990
Government Reports Annual Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Government reports announcements & index categories.