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Topographically forced inertial waves
Fennel, W.; Schmidt, M. (1993). Topographically forced inertial waves. J. Mar. Syst. 4(1): 1-15
In: Journal of Marine Systems. Elsevier: Tokyo; Oxford; New York; Amsterdam. ISSN 0924-7963, more
Peer reviewed article  

Available in Authors 

Keyword
    Marine

Authors  Top 
  • Fennel, W.
  • Schmidt, M.

Abstract
    The response of a continuously stratified, inviscid coastal sea to a harmonic background flow over a small amplitude topographic feature is studied in the frame of a linear theory. We consider, in particular, a switched-on inertial oscillation over a cosine-shaped ridge. Initially two systems of oscillations are excited over the ridge, inertial oscillations and oscillations with a topographically induced "blue shift". At the edges of the ridge inertial waves are generated by the switch-on process and propagate away. After the passage of the inertial waves the blue-shifted oscillations are annihilated and bottom intensified inertial oscillations remain over the ridge. Moreover, a stationary contribution develops where the along-ridge current is in geostrophical balance with the cross-ridge pressure gradient.

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