New Zealand
This page describes a numerical simulation of gravity waves over New Zealand's
south island.
Computational Domain
The layout of the of the simulation is shown in the figure below. The origin is located at
Mount Cook (43.5950° S, 170.1418° E).
The computation grid uses horizontal mesh spacings of 1000 m in a region slightly
larger than the south island land mass. The mesh is then stretched gently to
the lateral boundaries. The vertical grid uses stretching from 250 m at the surface
to a spacing of 750 m in a uniform region between 40 km and 160 km. Stretching is used above this region to
the top of the domain at 400 km.
Inviscid wall boundary conditions are used and
the surface whereas characteristic (radiative) conditions are used at the
lateral and top boundaries.
Results
Gaussian avergered with FWHM of 7km