New Zealand Simulation
This page describes a numerical simulation over New Zealand using Navgem winds
over 06:00-12:00 UTC June 21 2014.
Computational Domain
The computation grid shown below uses horizonal mesh spacings of 1km in a uniform region
300 km centered at Mount Cook. Stretching of ~2% is used to the edge of the
domain. The vertical grid uses uniform spacing of 500 m for the entire altitude range
to 140 km. The total number of mesh points is 500x500x280.
Wind Profiles
Winds profiles and time varyiation displayed for data point located at 45.3626°S, 170°E.
This maps to (-11.2,-195.5) km in grid space, slightly SSE of Lauder.
Forcing
Forcing
A hyperbolic tangent forcing function gradually introduces winds near the surface with the
objective of achieving the wind profile within a two hour period. During this period, the
wind profile is fixed at 06:00 UTC.
The following animations start at the end of the ramping period.
The following animations start at the end of the ramping period.
Results in xz plane over Mount Cook
Results in xy plane at an altitude of 75 km
Results in xy plane at an altitude of 110 km
Gaussian Averaged xy plane centered at 87 km with FWHM of 7 km. Subtracted by arithmetic mean.