Articles | Volume 22, issue 3
Research article
08 May 2015
Research article |  | 08 May 2015

Two-dimensional numerical simulations of shoaling internal solitary waves at the ASIAEX site in the South China Sea

K. G. Lamb and A. Warn-Varnas

Related subject area

Subject: Nonlinear Waves, Pattern Formation, Turbulence | Topic: Climate, atmosphere, ocean, hydrology, cryosphere, biosphere
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Cited articles

Alford, M. H., Lien, R. C., Simmons, H., Klymak, J., Ramp, S., Yang, Y. J., Tang, D., and Chang, M.-H.: Speed and evolution of nonlinear internal waves transiting the South China Sea, J. Phys. Oceanogr., 40, 1338–1355,, 2010.
Apel, J. R., Holbrook, J. R., Liu, A. K., and Tsai, J. J.: The Sulu Sea internal soliton experiment, J. Phys. Oceanogr., 15, 1625–1641, 1985.
Boegman, L. and Ivey, G. N.: Flow separation and resuspension beneath shoaling nonlinear internal waves, J. Geophys. Res., 114, c02018,, 2009.
Buijsman, M. C., Kanarska, Y., and McWilliams, J. C.: On the generation and evolution of nonlinear internal waves in the South China Sea, J. Geophys. Res., 115, C10057,, 2010.
Duda, T. F., Lynch, J. F., Irish, J. D., Beardsley, R. C., Ramp, S. R., Chiu, C.-S., Tang, T. Y., and Yang, Y.-J.: Internal tide and nonlinear wave behavior at the continental slope in the northern South China Sea, IEEE J. Ocean. Eng., 29, 1105–1130,, 2004.
Short summary
Two-dimensional numerical simulations of the shoaling of an internal solitary wave (ISW) in the South China Sea have been undertaken. Peak amplitudes are attained at depths of 250 and 600m. Horizontal resolutions of 50m are required to simulate the formation of a pedestal in shallow water behind the shoaling wave. At a depth of 200m, waves can exceed maximum ISW amplitudes by 50%. Sensitivity to the bathymetry and stratification and the effects of rotation are considered.