| | Front Cover |
| | Title Page |
| | Acknowledgement |
| | Table of Contents |
| | List of Tables |
| | List of Figures |
| | List of symbols |
| | Abstract |
| | Introduction |
| | Literature review |
| | Design of experiment |
| | Experimental apparatus, procedure... |
| | Anaysis and results |
| | Conclusions and recommendation... |
| | References |
|
| Full Citation |
| Material Information |
| |
Title: |
The Role of wave and current forcing in the process of barrier island overwash |
| |
Series Title: |
UFLCOEL |
| |
Physical Description: |
xiv, 118 leaves : ill. ; 29 cm. |
| |
Language: |
English |
| |
Creator: |
Pirrello, Mark A., 1967- ( Dissertant )
Thieke, Robert J. ( Thesis advisor )
Dean, Robert G. ( Reviewer )
Mehta, Ashish J. ( Reviewer )
University of Florida -- Coastal and Oceanographic Engineering Dept |
| |
Publisher: |
Coastal & Oceanographic Engineering Dept., University of Florida |
| |
Place of Publication: |
Gainesville, Fla. |
| |
Publication Date: |
1992 |
| |
Copyright Date: |
1992 |
| Subjects |
| |
Subjects / Keywords: |
Barrier islands ( lcsh )
Waves ( lcsh )
Ocean currents ( lcsh )
Coastal and Oceanographic Engineering thesis M.E ( local )
Dissertations, Academic -- Coastal and Oceanographic Engineering -- UF ( local ) |
| |
Genre: |
bibliography ( marcgt )
non-fiction ( marcgt ) |
| Notes |
| |
Abstract: |
With the rapid growth and development of barrier islands, understanding the long-term stability of these islands is an integral part of future coastal planning. The overwash process is the largest influence on the long-term stability of these islands and thus a corresponding understanding is of major importance. A laboratory experiment was undertaken to physically model the wave and current forcing as they pertain to the overwash process. The physical model was subjected to various storm conditions common to the occurrence of the overwash. Combinations of wave height, wave period, and overwash depth were tested in an attempt to isolate the significant parameters. Water surface gradients were also applied to observe their influence on the overwash process. Wave height, current, and bed profile measurements were taken at different locations throughout the tank. In addition, wave height transformation modeling and mean current prediction were performed and compared to the laboratory results in an attempt to model the overwash process through computer simulations. The experimental results demonstrate that the water surface gradient is the mechanism that has the greatest influence in producing “significant” overwash and is most likely responsible for transporting large quantities of sand on to and over barrier islands. In addition, two other conclusions were drawn about the overwash process: 1) the overwash depth plays an important role in determining the overwash velocity and hence the amount of sand deposited on the barrier island. 2) There seems to exist a correlation between the strength of the return flow and bar formation. It was also determined that modeling the wave height transformation during the overwash process is possible if the model is expressly written for the overwash process and not for non-overwashing cases. The method utilized to predict the mean currents during overwash was not able to predict their strength but was able to substantiate the correlation between return flow and bar formation. As a result of overwash, the increased shoreward mass transport and reduced return flow in the water column are able to initiate and sustain a shoreward sediment transport. Finally, it was concluded in all likelihood only “significant” overwash evens after the long-term stability of the barrier islands. |
| |
Thesis: |
Thesis (M.E.)--University of Florida, 1992. |
| |
Bibliography: |
Includes bibliographical references (leaves 114-117). |
| |
Statement of Responsibility: |
by Mark A. Pirrello. |
| |
General Note: |
Typescript. |
| |
General Note: |
Vita. |
| |
Funding: |
This publication is being made available as part of the report series written by the faculty, staff, and students of the Coastal and Oceanographic Program of the Department of Civil and Coastal Engineering. |
| Record Information |
| |
Bibliographic ID: |
UF00079950 |
| |
Volume ID: |
VID00001 |
| |
Source Institution: |
University of Florida |
| |
Holding Location: |
University of Florida |
| |
Rights Management: |
All rights reserved by the source institution and holding location. |
| |
Resource Identifier: |
aleph - 001872341
oclc - 29233536
notis - AJU7343 |
|
| Downloads |
|
|
| Table of Contents |
|
Front Cover
Front Cover
Title Page
Page i
Acknowledgement
Page ii
Table of Contents
Page iii
Page iv
Page v
List of Tables
Page vi
Page vii
Page viii
List of Figures
Page ix
Page x
Page xi
List of symbols
Page xii
Abstract
Page xiii
Page xiv
Introduction
Page 1
Page 2
Page 3
Page 4
Page 5
Page 6
Page 7
Page 8
Page 9
Page 10
Literature review
Page 11
Page 12
Page 13
Page 14
Page 15
Page 16
Page 17
Page 18
Page 19
Page 20
Design of experiment
Page 21
Page 22
Page 23
Page 24
Page 25
Page 26
Page 27
Page 28
Page 29
Page 30
Page 31
Page 32
Page 33
Page 34
Experimental apparatus, procedure and conditions
Page 35
Page 36
Page 37
Page 38
Page 39
Page 40
Page 41
Page 42
Page 43
Anaysis and results
Page 44
Page 45
Page 46
Page 47
Page 48
Page 49
Page 50
Page 51
Page 52
Page 53
Page 54
Page 55
Page 56
Page 57
Page 58
Page 59
Page 60
Page 61
Page 62
Page 63
Page 64
Page 65
Page 66
Page 67
Page 68
Page 69
Page 70
Page 71
Page 72
Page 73
Page 74
Page 75
Page 76
Page 77
Page 78
Page 79
Page 80
Page 81
Page 82
Page 83
Page 84
Page 85
Page 86
Page 87
Page 88
Page 89
Page 90
Page 91
Page 92
Page 93
Page 94
Page 95
Page 96
Page 97
Page 98
Page 99
Page 100
Page 101
Page 102
Page 103
Conclusions and recommendations
Page 104
Page 105
Page 106
Page 107
Page 108
Page 109
Page 110
Page 111
Page 112
Page 113
References
Page 114
Page 115
Page 116
Page 117
|
|
RSS
HIDE
