where x, y and σ. is the east, north and vertical axes of
the generalized terrain-following coordinate; t the time; u,
v , and
ω
the x, y and σ. components of the velocity; τx
and τy
the x and y components of the stress;
η
the sea
surface elevation; h the mean water depth; D=h+
η
the
total water depth; θ the potential temperature; s the salinity;
ρ the density; patm the air pressure; f the Coriolis parameter;
H.