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

doi:10.1126/science.1085837

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

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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 language	English
Pages (from-to)	355-357
Number of pages	3
Journal	Science
Volume	301
Issue number	5631
DOIs	https://doi.org/10.1126/science.1085837
Publication status	Published - 2003

Keywords

DEEP-OCEAN
DISSIPATION
ABYSSAL OCEAN
INTERNAL TIDES
SEAMOUNT
Multidisciplinary Sciences

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10.1126/science.1085837

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Rudnick, DL., Boyd, T., Brainard, RE., Carter, G. S., Egbert, G. D., Gregg, M. C., Holloway, P. E., Klymak, JM., Kunze, E., Lee, C. M., Levine, M. D., Luther, D. S., Martin, J. P., Merrifield, M. A., Moum, JN., Nash, J. D., Pinkel, R., Rainville, L., & Sanford, TB. (2003). From tides to mixing along the Hawaiian ridge. Science, 301(5631), 355-357. https://doi.org/10.1126/science.1085837

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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.",

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AU - Rudnick, DL

AU - Boyd, Tim

AU - Brainard, RE

AU - Carter, G S

AU - Egbert, G D

AU - Gregg, M C

AU - Holloway, P E

AU - Klymak, JM

AU - Kunze, E

AU - Lee, C M

AU - Levine, M D

AU - Luther, D S

AU - Martin, J P

AU - Merrifield, M A

AU - Moum, JN

AU - Nash, J D

AU - Pinkel, R

AU - Rainville, L

AU - Sanford, TB

PY - 2003

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AB - 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.

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KW - DISSIPATION

KW - ABYSSAL OCEAN

KW - INTERNAL TIDES

KW - SEAMOUNT

KW - Multidisciplinary Sciences

U2 - 10.1126/science.1085837

DO - 10.1126/science.1085837

M3 - Article

SN - 1095-9203

VL - 301

SP - 355

EP - 357

JO - Science

JF - Science

IS - 5631

ER -

From tides to mixing along the Hawaiian ridge

Abstract

Keywords

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