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Next: 1.2.6 Parameter sensitivity using
Up: 1.2 Illustrations of the
Previous: 1.2.4 Convection and mixing
Contents
The unique ability of MITgcm to treat non-hydrostatic dynamics in the
presence of complex geometry makes it an ideal tool to study internal wave
dynamics and mixing in oceanic canyons and ridges driven by large amplitude
barotropic tidal currents imposed through open boundary conditions.
Fig. 1.9 shows the influence of cross-slope
topographic variations on
internal wave breaking - the cross-slope velocity is in color, the density
contoured. The internal waves are excited by application of open boundary
conditions on the left. They propagate to the sloping boundary (represented
using MITgcm's finite volume spatial discretization) where they break under
nonhydrostatic dynamics.
Figure 1.9:
Simulation of internal waves forced at an open boundary (on the left)
impacting a sloping shelf. The along slope velocity is shown colored, contour
lines show density surfaces. The slope is represented with high-fidelity using
lopped cells.
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Massachusetts Institute of Technology |
Last update 2018-01-23 |
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