6 Summary and Conclusions
Water level (wave height variation) and wave directional data were collected
at numerous locations for situations typical of coastal inlets. The objective was
to supply data sets that contain information with diffracting, refracting, and
shoaling waves to aid in the development of numerical models that simulate field
conditions. The measurements were collected at an idealized inlet with smooth
contours. The following configurations were examined:
a. An offshore breakwater directly up-coast of the inlet region with a
bathymetry behind it that has a sloping bottom terminating at the beach
b. A dogleg jetty on one side of a coastal inlet (Structure 2).
c. An unjettied inlet, with measurements collected on the bay side
(Structure 3). These experiments were performed with and without a
d. A jettied inlet, with measurements collected on the bay side (Structure 4).
These experiments were performed with and without a flood current.
Results from a physical model laboratory study of spatially dense wave
direction measurements in the diffraction regions of coastal inlet structures were
presented. To obtain these measurements, a video-based metric system was
developed, implemented, and validated. This system is called the Coastal Inlets
Imaging System (CIIS). Although the system was developed using commercially
available hardware and standard image processing and photogrammetric
techniques, the application of the CIIS to provide spatially dense measures of
wave direction over a large area of interest represents an advance in wave
measurement technology. Experimentation confirms that the system provides
spatially dense and accurate measures of wave direction over a large area of
interest, which is not economically obtained by standard in situ methods.
Based on the information presented in this report, it is concluded that:
comprehensive data presented
in this report will provide calibration
Chapter 6 Summary and Conclusions