The
winter (Feb. 15) meridional
overturning
circulation is graphed for
six
HYCOM simulations as a function
of
latitude and density. The five
simulations
without relaxation BC’s
are
very similar to each other.
Relaxation
BC’s clearly enhance the
meridional
overturning circulation and
induces
a deep circulation cell
associated
with the northward flow
of
bottom water. A significant seasonal
cycle
exists at low latitudes, with an
enhanced
winter circulation cell evident
between
0 and 20N in all simulations.