Publikationsdatum:
2019-07-16
Beschreibung:
The recently proposed Internal Wave Dissipation, Energy and Mixing (IDEMIX) model, describing the
propagation and dissipation of internal gravity waves in the ocean, is extended. Compartments describing the
energy contained in the internal tides and the near-inertial waves at low, vertical wavenumber are added to
a compartment of the wave continuum at higher wavenumbers. Conservation equations for each compartment
are derived based on integrated versions of the radiative transfer equation of weakly interacting waves. The
compartments interact with each other by the scattering of tidal energy to the wave continuum by triad wave–
wave interactions, which are strongly enhanced equatorward of 288 due to parametric subharmonic instability of
the tide and by scattering to the continuum of both tidal and near-inertial wave energy over rough topography
and at continental margins. Global numerical simulations of the resulting model using observed stratification,
forcing functions, and bottom topography yield good agreement with available observations.
Repository-Name:
EPIC Alfred Wegener Institut
Materialart:
Article
,
isiRev
Format:
application/pdf
