A Numerical Study of the Storm Surge Generated by Tropical Cyclone Jane

Yong Ming Tang Bureau of Meteorology Research Centre, Melbourne, Australia

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Peter Holloway Department of Geography and Oceanography, Australian Defence Force Academy, Canberra, Australia

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Roger Grimshaw Department of Mathematics, Monash University, Clayton, Australia

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Abstract

In 1983 Tropical Cyclone Jane crossed the North West Coast of Australia generating a storm surge. Currents associated with this storm surge were recorded at two offshore moorings south of the cyclone track. The data from these moorings are suggestive of the propagation of a continental shelf wave between the two stations. This hypothesis is tested by carrying out a numerical simulation of this storm surge based on the depth-integrated shallow-water equations, with wind-wave-enhanced bottom friction. Analysis of the numerical results shows that the storm surge can be interpreted as due to continental shelf waves.

Corresponding author address: Dr. Yong Ming Tang, Bureau of Meterology, GPO Box 1289K, Melbourne 3001, Australia.

Abstract

In 1983 Tropical Cyclone Jane crossed the North West Coast of Australia generating a storm surge. Currents associated with this storm surge were recorded at two offshore moorings south of the cyclone track. The data from these moorings are suggestive of the propagation of a continental shelf wave between the two stations. This hypothesis is tested by carrying out a numerical simulation of this storm surge based on the depth-integrated shallow-water equations, with wind-wave-enhanced bottom friction. Analysis of the numerical results shows that the storm surge can be interpreted as due to continental shelf waves.

Corresponding author address: Dr. Yong Ming Tang, Bureau of Meterology, GPO Box 1289K, Melbourne 3001, Australia.

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