NUMERICAL SENSITIVITY EVALUATION OF THE PHASE-RESOLVING WAVE MODEL SWASH AND ITS APPLICABILITY IN AN OPERATIONAL FORECAST ENVIRONMENT FOR REEF-LINED COASTS

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dc.contributor.advisor Thompson, Philip PT
dc.contributor.author Gibbs, Jatasey Alexander
dc.contributor.department Oceanography
dc.date.accessioned 2024-07-02T23:43:01Z
dc.date.available 2024-07-02T23:43:01Z
dc.date.issued 2024
dc.description.degree M.S.
dc.identifier.uri https://hdl.handle.net/10125/108425
dc.subject Ocean engineering
dc.subject Coastal Inundation
dc.subject Phase-Resolving
dc.subject Sea Level Rise
dc.subject SWASH
dc.subject Wave Modeling
dc.subject Wave Runup
dc.title NUMERICAL SENSITIVITY EVALUATION OF THE PHASE-RESOLVING WAVE MODEL SWASH AND ITS APPLICABILITY IN AN OPERATIONAL FORECAST ENVIRONMENT FOR REEF-LINED COASTS
dc.type Thesis
dcterms.abstract An evaluation of the Simulating WAves till SHore (SWASH, Zijlema, 2011) spectral wave-flow model on the north shore of Oahu, Hawaii, was conducted to determine sensitivity to various numerical settings and grid configurations. It also aimed to assess what could be achievable in an operational forecasting environment, such as NOAA’s National Weather Service Forecast Offices, with regard to computational expenses involved. Spatial resolution, water level, boundary conditions, friction, and the computational time window were analyzed and compared across a two-dimensional (2D) grid and along a one-dimensional transect. Water elevations derived from these tests were evaluated at a nearshore point that remained wet throughout the simulations and used to compare bulk-averaged output parameters that included: sea and swell height, wave setup, infragravity wave height, and the two-percent exceedance wave height. The sensitivity of these bulk quantities to model framework decisions that impact computational expense pose immense challenges for implementation in an operational forecast environment. We present results demonstrating how forecast sites can balance operational feasibility and accuracy.
dcterms.extent 62 pages
dcterms.language en
dcterms.publisher University of Hawai'i at Manoa
dcterms.rights All UHM dissertations and theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission from the copyright owner.
dcterms.type Text
local.identifier.alturi http://dissertations.umi.com/hawii:12066
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