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A wave model for the Great Barrier Reef

journal contribution
posted on 2023-05-16, 19:54 authored by Hardy, TA, Mason, LB, McConochie, JD
A new wind wave generation model, WAMGBR, is presented that has been adapted from WAM especially for use in the complex geometry of the Great Barrier Reef. A technique (reef parameterization) has been presented that incorporates sub-grid scale dissipation caused by coral reefs. Three other improvements to WAM have been proposed. An explicit/implicit finite difference scheme has been implemented that allows for more efficient modelling (longer time steps) while maintaining diffusive characteristics that are at least as good as those of WAM. An offset in discrete angles creates more uniform diffusive characteristics. And, a transformed spherical coordinate system allows for more efficient grid sizes and smaller grid dependent refraction. Comparisons between modelling techniques and between model and measured data show that WAMGBR produces very good results in the difficult challenge of modelling both non-cyclonic and tropical cyclone waves in the geographically complex environment of the Great Barrier Reef. (C) 2000 Elsevier Science Ltd. All rights reserved.

History

Publication title

Ocean Engineering

Volume

28

Pagination

45-70

ISSN

0029-8018

Department/School

Australian Maritime College

Publisher

Pergamon

Place of publication

United Kingdom

Repository Status

  • Restricted

Socio-economic Objectives

Oceanic processes (excl. in the Antarctic and Southern Ocean)

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