Unless otherwise described, all variables represent the ``full'' value of the field. Thus, ``zonal velocity'' is the ``full'' (mean plus anomaly) zonal velocity, not just the anomaly or mean.
Names of quantities or parameters (such as zonal velocity u), are set
in an italicized ``mathematics'' font.
Names of model variables
(e.g. barotropic zonal velocity u0(i,j)),
which may or may not have a corresponding similarly titled physical quantity,
are set in a non-proportional ``verbatim typewriter''
font.
Directory names, shell scripts, program commands, and subroutine and function
names are also generally set in a non-proportional verbatim font.
Filenames are written in the same font as the regular text.