Pol Dirk Olbers and Carsten Eden Wave-mean flow interaction and IDEMIX IDEMIX Internal wave Dissipation, Energetics and MIXing.

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Presentation transcript:

Pol Dirk Olbers and Carsten Eden Wave-mean flow interaction and IDEMIX IDEMIX Internal wave Dissipation, Energetics and MIXing

Energy in the ocean tides, wind lee waves wave breaking mixing WKB wave-mean flow interaction

IDEMIXIDEMIX1 m ω mcmc f - m c N updown m = 0 dissipation M2 bclinic tides and NIW forcing: tides, NIW nonlinear wave interactions propagation dissipation local energy of continuum Dirk Olbers and Carsten Eden : A global model for the diapycnal diffusivity induced by internal gravity waves. JPO 2013 Carsten Eden and Dirk Olbers: An energy compartment model for propagation, non-linear interaction and dissipation of internal gravity waves. JPO 2014 Carsten Eden, Lars Czeschel and Dirk Olbers: Towards energetically consistent ocean models. JPO 2014

Pol Raysno mean flow

Pol Rayswith mean flow

Rays – examples

Rays – WKB theory

Radiation balance equation

Radiation balance equation – IDEMIX

IDEMIX 3

1D example of IDEMIXno mean flow

1D example of IDEMIX without scattering and dissipationno mean flow

1D example of IDEMIX with scattering and without dissipationno mean flow

1D example of IDEMIX with scattering, forcing and dissipationno mean flow

1D example of IDEMIX with scattering, forcing and dissipationno mean flow

1D example of IDEMIX without scattering and dissipationwith mean flow

1D example of IDEMIX with scattering and without dissipationwith mean flow

1D example of IDEMIX with scattering and with dissipationwith mean flow

1D example of IDEMIX with scattering and with dissipationwith mean flow

Outlook

Literature for Internal Waves

1D example of IDEMIX with scattering and without dissipationwith mean flow

Internal wave kinematicsGM76 spectral model vertical wavenumber frequency ~ m -2 ~ ω -2