![\includegraphics[angle=-90,width=.81\textwidth]{part1/atl6.eps}](img81_small.png)
Novel
approaches to both the hydrodynamical
kernel of ocean models and the parametric representations of
subgridscale processes in them have been developed. The
resulting model - Marshall et al (1997a); Marshall et al (1997b)
is highly flexible. It can relax the hydrostatic approximation
and so is applicable to the very smallest scales of motion, down
and to the convective
scale. But the algorithm has been carefully devised and
implemented so that it can also be used to efficiently represent
large-scale, hydrostatically-balanced processes.
The use of finite volume techniques has also permitted novel
treatment of topography.
The model is now being applied to study phenomena across the
whole plethora of scales in the ocean - look here.
Along with the forward model, its tangent-linear
and adjoint counterpart is maintained, through the use of an
automatic adjoint compiler, and is being used as a
state
estimation tool.
Currents and salinity field at a depth of 2km
on the cubed sphere.
