The
UCLA AGCM is a complex code representing many physical processes.
Despite the complexity of the code, one can identify the
following two major components:
AGCM/Dynamics,
which computes the evolution of the fluid flow governed by the
appropriate equations (the primative equations written in finite
differences).
AGCM/Physics,
which computs the effect of processes not resolved by the model's
grid (such as convection on cloud scales) on processes that
are resolved by the grid (such as the flow on the large scale)