Time-spatial variability observed in velocity of propagation of the internal bore in the Strait of Gibraltar

J.C. Sánchez Garrido, J. García Lafuente, F. Criado Aldeanueva, A. Baquerizo, Gianmaria Sannino

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Abstract

Some aspects of the time-spatial variability of the phase speed of the internal bore generated almost every tidal cycle in Camarinal Sill, are revised using a set of high resolution experimental data collected in two different positions of the Strait during May 2003. This variability is mainly driven by the intense tidal currents, comparable with the intrinsic propagation velocity of the first mode baroclinic bore. It is shown that the importance of the diurnal tide in the Strait of Gibraltar induces a considerable diurnal inequality on the bore velocity, with an observed maximum difference of 0.7 ms-1between the speed of two consecutives bores propagating along the eastern part of the Strait. A regularly spatial pattern has been also found: the internal bore reaches its maximum velocity in Tarifa Narrows. A theoretical estimation predicts an extreme phase speed of 2.6 ms-1during our period of study. Copyright 2008 by the American Geophysical Union.
Original languageEnglish
Article numberC07034
Pages (from-to)-
JournalJournal of Geophysical Research
Volume113
Issue number7
DOIs
Publication statusPublished - 8 Jul 2008
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Geophysics
  • Oceanography
  • Forestry
  • Aquatic Science
  • Ecology
  • Condensed Matter Physics
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Materials Chemistry
  • Palaeontology

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