OS Ocean Science OS Ocean Sci. 1812-0792 Copernicus Publications Göttingen, Germany 10.5194/os-3-441-2007 Internal tides and energy fluxes over Great Meteor Seamount Gerkema T. 1 van Haren H. 1 Royal NIOZ, P.O. Box 59, 1790 AB Den Burg, Texel, The Netherlands 01 10 2007 3 3 441 449 Copyright: © 2007 T. Gerkema 2007 This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Generic License. To view a copy of this licence, visit https://creativecommons.org/licenses/by-nc-sa/2.5/ This article is available from https://os.copernicus.org/articles/3/441/2007/os-3-441-2007.html The full text article is available as a PDF file from https://os.copernicus.org/articles/3/441/2007/os-3-441-2007.pdf

Internal-tide energy fluxes are determined halfway over the southern slope of Great Meteor Seamount (Canary Basin), using data from combined CTD/LADCP yoyoing, covering the whole water column. The strongest signal is semi-diurnal and is concentrated in the upper few hundred meters of the water column. An indeterminacy in energy flux profiles is discussed; it is argued that a commonly applied condition used to determine these profiles is in fact invalid over sloping bottoms. However, the vertically integrated flux can be established unambiguously; the observed results are compared with the outcome of a numerical internal-tide generation model. For the semi-diurnal internal tide, the vertically integrated flux found in the model corresponds well to the observed one. The observed diurnal signal appears to be largely of non-tidal origin.

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