Vertical advection

[Ben-Jei Tsuang]

Try to use the openGrADS extension:

http://opengrads.org/doc/udxt/libbjt/

madvw(W,EXPR)

This function calculates

   -d(W*EXPR)/dp

using an upwind scheme.

W

    Vertical wind speed (w component) (unit of vertical coordinate/s,
such as hPa/s for the vertical coordinate in hPa)
EXPR

    An expression.
Remarks

    Note that no-slip boundary conditions are assumed. i.e.,

          w(lev=0)=0
          C(lev=0)=C(lev=1)

          concp, wp
               |---cn
          conc, w
               |---cnm
          concm, wm



Ben

2009/6/25 Isabel belitaps <belitaps at cptec.inpe.br>:
> Dear all.,
>
> I've been  trying to calculate vertical advection of temperature in ocean, but I believe I can't use cdiff
> (as expected to get to horizontal advection)..  Anyone knows how could I do it, any clue??
>
> tks! Best regards,
>
> Isabel.
>