[gradsusr] converting omega to vertical velocity

[tcavazos at cicese.mx]

Hi

The usual unit (magnitude) of vertical velocity is in cm/seg.
So, it is fine.

Cheers,
Tereza

> Dear GrADS users
> Hi
>
> I'm recently working on a project about the vertical speed of air in
> different elevations. I'm using CFSR data in grb2 format. these data sets
> have omega (Pa/s) instead . I tried to convert them to vertical velocity
> (m/s) using this equation:
> omega=  - rho * g * w  ( or omega=- (P/RT) *g * w )
> but the results in (m/s ) are in the order of 10^-3. I know it's not a
> Grads problem. but I'm an aerospace student and I need to find out if
> anything is wrong with this equation or the results or not. ( I'm not
> really familiar with meteorology!)
>
> for example:
> if  omega= 0.10595
> & g=9.807
> & R=287
> & P= 100000 Pa
> & T=294.27
> resulted value is W=0.00912 (m/s)
>
>
> Thanks in advance,
> Alireza
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-- 
Tereza Cavazos
Departamento de Oceanografia Fisica
CICESE
Ensenada, Baja California, MEXICO
http://usuario.cicese.mx/~tcavazos/