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Title: Kikiaola Light Draft Harbor monitoring plan; Part 2 : numerical wave modeling for evaluation of structural alternatives
Authors: Demirbilek, Zeki
Lin, Lihwa
Nwogu, Okey G.
Butler, William C.
Hathaway, Kent K.
Smith, Thomas D.
Keywords: Numerical modeling
Numerical models
Mathematical modeling
Mathematical models
Wave reduction
Kikiaola Harbor
Coastal structures
Coastal Inlets Research Program (U.S.)
Publisher: Engineer Research and Development Center (U.S.)
Series/Report no.: Technical Report (Engineer Research and Development Center (U.S.)) ; no. ERDC/CHL TR-14-9
Abstract: This report documents field data collection and monitoring, and numerical wave modeling for evaluation of structural alternatives for modification of Kikiaola Light Draft Harbor (KLDH), located on the southwest coast of Kauai Island, Hawaii. The entrance and interior of KLDH is largely affected by waves transforming over a wide shallow reef. Unfavorable navigation conditions for boats using this harbor are caused by high-energy northwest swells, southern swells, and storms. The harbor entrance is flanked by two breakwaters that shelter the harbor interior from waves, current, and sedimentation. A six-month field data collection study provided wave data for calibration of numerical models. Surveys of bathymetry and structures were conducted to obtain data for numerical modeling. The hydrographic survey data collected was used in the numerical modeling study to evaluate eight structural alternatives. CMS-Wave, a spectral wave model, was used to transform deepwater waves measured by buoys to the project site. BOUSS-2D (B2D), a Boussinesq-type wave model, was used to investigate alternatives representing structural modifications inside and outside of the harbor. These modifications were breakwaters or spurs. Benefits and consequences of modifications were evaluated for improving navigation safety and utilization of the existing harbor. Potential impacts of each alternative on navigation in the entrance channel, access channel, and harbor basin were examined.
Description: Technical Report
Gov't Doc #: ERDC/CHL TR-14-9
Rights: Approved for public release; distribution is unlimited
Appears in Collections:Technical Report
Technical Report

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