Sutherland, B; Hughes, Graham; Dalziel, S; Linden, P F
We describe a new laboratory technique that has been developed to examine the structure and amplitude of internal waves. As well as being relatively inexpensive to set up, the technique is sensitive to small density fluctuations: heat rising from a hand can easily be seen. If the internal wave field is uniform across the span of the tank, then the density gradient field can be measured non-intrusively everywhere in space and time. We use this technique to measure the amplitude of internal waves...[Show more]
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