From tides to mixing along the Hawaiian ridge

DL Rudnick, Tim Boyd, RE Brainard, G S Carter, G D Egbert, M C Gregg, P E Holloway, JM Klymak, E Kunze, C M Lee, M D Levine, D S Luther, J P Martin, M A Merrifield, JN Moum, J D Nash, R Pinkel, L Rainville, TB Sanford

Research output: Contribution to journalArticlepeer-review

248 Citations (Scopus)

Abstract

The cascade from tides to turbulence has been hypothesized to serve as a major energy pathway for ocean mixing. We investigated this cascade along the Hawaiian Ridge using observations and numerical models. A divergence of internal tidal energy flux observed at the ridge agrees with the predictions of internal tide models. Large internal tidal waves with peak-to-peak amplitudes of up to 300 meters occur on the ridge. Internal-wave energy is enhanced, and turbulent dissipation in the region near the ridge is 10 times larger than open-ocean values. Given these major elements in the tides-to-turbulence cascade, an energy budget approaches closure.
Original languageEnglish
Pages (from-to)355-357
Number of pages3
JournalScience
Volume301
Issue number5631
DOIs
Publication statusPublished - 2003

Keywords

  • DEEP-OCEAN
  • DISSIPATION
  • ABYSSAL OCEAN
  • INTERNAL TIDES
  • SEAMOUNT
  • Multidisciplinary Sciences

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