John
McGregor
CSIRO Atmospheric Research
Melbourne, Australia
The CSIRO conformal-cubic model is being developed
for use as a GCM, a regional climate model, and for NWP purposes. It is a
2-time-level semi-Lagrangian model with some unique features. A non-staggered
grid is used for most computations (advection, physics, Coriolis terms), but the
velocities are reversibly transformed to a C-staggered grid for the
semi-implicit treatment of gravity wave terms. This procedure has good
dispersion characteristics. The treatment of orography has recently been
improved, in regard to pressure gradient calculations and also the advection of
temperature and surface pressure. Examples of model simulations will be
presented.
Monday July
24, 2000
10:30 - 12:00 p.m.
Mesa Lab: Chapman Room