Vertical discretization of the pressure gradient terms
The vertical pressure gradient
(Eq. 187) is descretized as
|
(201) |
where the bracketed term on the RHS of Eq. 203
defines the discretized form of
, and
the standard vertical interpolation operation from
Eq. 177 is used for and .
The horizontal pressure gradient is expressed as
|
(202) |
where
is computed (interpolated to layer centers)
using Eq. 172.