Articles | Volume 13, issue 1
https://doi.org/10.5194/os-13-145-2017
https://doi.org/10.5194/os-13-145-2017
Research article
 | 
17 Feb 2017
Research article |  | 17 Feb 2017

Seiche excitation in a highly stratified fjord of southern Chile: the Reloncaví fjord

Manuel I. Castillo, Oscar Pizarro, Nadin Ramírez, and Mario Cáceres

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Cited articles

Aiken, C. M.: Barotropic tides of the Chilean Inland Sea and their sensitivity to basin geometry, J. Geophys. Res., 113, C08024, https://doi.org/10.1029/2007JC004593, 2008.
Allen, G. L. and Simpson, J. H: Reflection of the internal tide in Upper Loch Linnhe, a Scottish fjord, Estuar. Coast. Shelf Sci., 46, 683–701, 1998.
Arneborg, L. and Liljebladh, B.: The internal seiches in Gullmar fjord part I – dynamics, J. Phys. Oceanogr., 31, 2549–2566, 2001a.
Arneborg, L. and Liljebladh, B.: The internal seiches in Gullmar fjord part II – contribution to basin water mixing, J. Phys. Oceanogr., 31, 2567–2574, 2001b.
Cáceres, M., Valle-Levinson, A., Sepúlveda, H., and Holderied, K.: Transverse variability of flow and density in a Chilean fjord, Cont. Shelf Res., 22, 1683–1698, 2002.
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Short summary
Here we present the results of an intensive physical oceanography study conducted in the Reloncavi fjord (41.5º S, 72.5º W) which was focused on the sub-inertial timescale. The along-fjord currents presented 3-day oscillations which were consistent with the natural internal period of oscillation of the fjord basin (internal seiche). This oscillation could explain more than 44 % of the 3-day variability and contributed with kinetic energy levels as large as the tidal currents.