[gradsusr] Grads vertical derivative error with cdiff

[Arlindo da Silva]

On Sun, May 6, 2012 at 9:44 PM, Jeff Duda <jeffduda319 at gmail.com> wrote:

> You can't use cdiff in the vertical.  You must calculate the derivative
> using a manual centered difference.  For example, 'd
> 0.5*(geopot(z+1)-geopot(z-1))'
>
>
If you are using opengrads, there are functions designed for computing
vertical advection, see

    ADVECTION FUNCTIONS<http://opengrads.org/doc/udxt/libbjt/libbjt.html#advection_functions>


  Arlindo


-- 
Arlindo da Silva
*dasilva at alum.mit.edu*
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://gradsusr.org/pipermail/gradsusr/attachments/20120508/121ee65e/attachment-0003.html