Influence of the Coriolis force on the formation of a seasonal thermocline Topical Collection on the 4th International Workshop on Modelling the Ocean in Yokohama, Japan 21-24 May 2012

Gahyun Goh, Yign Noh

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Large eddy simulation (LES) reveals that the Coriolis force plays an important role in seasonal thermocline formation. In the high-latitude ocean, a seasonal thermocline is formed at a certain depth, across which the downward transports of heat and momentum are prohibited. On the other hand, in the equatorial ocean, heat and momentum continue to propagate downward to the deeper ocean without forming a well-defined thermocline. Mechanism to clarify the latitudinal difference is suggested. The depth of a seasonal thermocline h is scaled in terms of both the Ekman length scale λ and the Monin-Obukhov length scale L, as h ≅ 0.5(Lλ)1/2, which is in contrast to the earlier suggestion as h ∝ L.

Original languageEnglish
Pages (from-to)1083-1092
Number of pages10
JournalOcean Dynamics
Volume63
Issue number9-10
DOIs
Publication statusPublished - 2013 Oct 1

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Coriolis force
thermocline
ocean
modeling
momentum
large eddy simulation

All Science Journal Classification (ASJC) codes

  • Oceanography

Cite this

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title = "Influence of the Coriolis force on the formation of a seasonal thermocline Topical Collection on the 4th International Workshop on Modelling the Ocean in Yokohama, Japan 21-24 May 2012",
abstract = "Large eddy simulation (LES) reveals that the Coriolis force plays an important role in seasonal thermocline formation. In the high-latitude ocean, a seasonal thermocline is formed at a certain depth, across which the downward transports of heat and momentum are prohibited. On the other hand, in the equatorial ocean, heat and momentum continue to propagate downward to the deeper ocean without forming a well-defined thermocline. Mechanism to clarify the latitudinal difference is suggested. The depth of a seasonal thermocline h is scaled in terms of both the Ekman length scale λ and the Monin-Obukhov length scale L, as h ≅ 0.5(Lλ)1/2, which is in contrast to the earlier suggestion as h ∝ L.",
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T1 - Influence of the Coriolis force on the formation of a seasonal thermocline Topical Collection on the 4th International Workshop on Modelling the Ocean in Yokohama, Japan 21-24 May 2012

AU - Goh, Gahyun

AU - Noh, Yign

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N2 - Large eddy simulation (LES) reveals that the Coriolis force plays an important role in seasonal thermocline formation. In the high-latitude ocean, a seasonal thermocline is formed at a certain depth, across which the downward transports of heat and momentum are prohibited. On the other hand, in the equatorial ocean, heat and momentum continue to propagate downward to the deeper ocean without forming a well-defined thermocline. Mechanism to clarify the latitudinal difference is suggested. The depth of a seasonal thermocline h is scaled in terms of both the Ekman length scale λ and the Monin-Obukhov length scale L, as h ≅ 0.5(Lλ)1/2, which is in contrast to the earlier suggestion as h ∝ L.

AB - Large eddy simulation (LES) reveals that the Coriolis force plays an important role in seasonal thermocline formation. In the high-latitude ocean, a seasonal thermocline is formed at a certain depth, across which the downward transports of heat and momentum are prohibited. On the other hand, in the equatorial ocean, heat and momentum continue to propagate downward to the deeper ocean without forming a well-defined thermocline. Mechanism to clarify the latitudinal difference is suggested. The depth of a seasonal thermocline h is scaled in terms of both the Ekman length scale λ and the Monin-Obukhov length scale L, as h ≅ 0.5(Lλ)1/2, which is in contrast to the earlier suggestion as h ∝ L.

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