Modeling Studies of Solitary Wave Effects in the South China Sea.
Abstract
A 3D and 2D study of solitary wave generation, in the Strait of Luzon, and subsequent propagation in the South China Sea is undertaken. The ocean predictions are conducted with the nonoscillatory forward-in-time (NFT) multiscale nonhydrostatic anelastic model EULAG for rotating stratified flows, broadly documented in the literature; Smolarkiewicz and Margolin (1997), Smolarkiewicz et al., (2001). Initial conditions are obtained from hydrographic measurements. The EULAG model is configured to accept tidal forcing from the barotropic tidal NCOM model that has tidal components imbedded in it. The generation of internal bores by tidal motion over the ridges in the Strait of Luzon is predicted. Subsequently, the bores propagated away from the Strait of Luzon and disintegrate into solitary waves. Energy conversion from the barotropic tide to the baroclinic tide and into internal solitary waves occurs. The solitary waves can attain amplitudes of around 150 m. Such amplitudes are observed at the ASIAEX experimental sites on the Chinese continental shelf. The effects of solitary wave trains on acoustic propagation and intensity are considered.
- Publication:
-
AGU Spring Meeting Abstracts
- Pub Date:
- May 2005
- Bibcode:
- 2005AGUSMOS43B..03W
- Keywords:
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- 1724 Ocean sciences;
- 2447 Modeling and forecasting;
- 3210 Modeling;
- 3220 Nonlinear dynamics;
- 4259 Ocean acoustics