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The impact of multiple layering on internal wave transmission

Published online by Cambridge University Press:  25 January 2016

S. J. Ghaemsaidi*
Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
H. V. Dosser
Applied Physics Laboratory, University of Washington, Seattle, WA 98105, USA
L. Rainville
Applied Physics Laboratory, University of Washington, Seattle, WA 98105, USA
T. Peacock
Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
Email address for correspondence:


Given the ubiquity of layering in environmental stratifications, an interesting example being double-diffusive staircase structures in the Arctic Ocean, we present the results of a joint theoretical and laboratory experimental study investigating the impact of multiple layering on internal wave propagation. We first present results for a simplified model that demonstrates the non-trivial impact of multiple layering. Thereafter, utilizing a weakly viscous linear model that can handle arbitrary vertical stratifications, we perform a comparison of theory with experiments. We conclude by applying this model to a case study of a staircase stratification profile obtained from the Arctic Ocean, finding a rich landscape of transmission behaviour.

© 2016 Cambridge University Press 

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