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Fluids 2018, 3(4), 96; https://doi.org/10.3390/fluids3040096

The Effect of a Variable Background Density Stratification and Current on Oceanic Internal Solitary Waves

Department of Mathematics, University College London, London WC1E 6BT, UK
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Received: 10 October 2018 / Revised: 6 November 2018 / Accepted: 13 November 2018 / Published: 20 November 2018
(This article belongs to the Collection Geophysical Fluid Dynamics)
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Abstract

Large amplitude, horizontally propagating internal waves are commonly observed in the coastal ocean. They are often modelled by a variable-coefficient Korteweg–de Vries equation to take account of a horizontally varying background state. Although this equation is now well-known, a term representing non-conservative effects, arising from horizontal variation in the underlying basic state density stratification and current, has often been omitted. In this paper, we examine the possible significance of this term using climatological data for several typical oceanic sites where internal waves have been observed. View Full-Text
Keywords: internal solitary waves; Korteweg–de Vries equation; background currents internal solitary waves; Korteweg–de Vries equation; background currents
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Liu, Z.; Grimshaw, R.; Johnson, E. The Effect of a Variable Background Density Stratification and Current on Oceanic Internal Solitary Waves. Fluids 2018, 3, 96.

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