Speaker
Description
Due to their key role in the global distribution of (physical) diapycnal
mixing and mass transport, proper representation of internal wave dynamics
in numerical models should be considered a priority since global climate
models are now configured with increasingly higher horizontal/vertical resolution.
The important terms involved in the discrete representation of gravity waves propagation are :
- The horizontal/vertical grid staggering
- The discrete approximation of the divergence term in the continuity equation and of the horizontal pressure gradient,
- The discrete approximation of the hydrostatic equilibrium
- The amount of vertical/horizontal diffusion
Based on a discrete normal mode decomposition, we study the impact of those
different ingredients on the phase speed of internal waves.
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