Convert sigma to pressure

[nadia khan]

Hi,
I have conversion of these three variables i.e. U, V  and QD:

Define  Constants
let Cp = 1004
let ptop = 10

............Convert U, V and QD variables into pressure level...............

      let Pk=Tk*0.0+Z*(Ps-`ptop`)+`ptop`
      define axis/Z=1000:50:25/unit=millibars/depth plev
      let  CTR_UP = ZAXREPLACE(U[k=1:14],Pk[k=1:14],z[gz=plev])
      let  CTR_VP = ZAXREPLACE(V[k=1:14],Pk[k=1:14],z[gz=plev])
      let  CTR_QP = ZAXREPLACE(QD[k=1:14],Pk[k=1:14],z[gz=plev])

Hope it will help u


Nadia Rehman Yousafzai
Research Fellow (Climate Section)
Global Change Impact Studies Centre
First Floor Saudi Pak tower
Blue Area Islamabad Pakistan
Ph :   92-51-9219785
Fax : 92-51-9219787

On 9/30/05, Ashraf Zakey <ashraf_saber123 at yahoo.com> wrote:
> Hello everyone:
>    How I can convert variables in sigma to pressure
> for Netcdf data.
>
> Thanks
>
> A. Zakey
>
>
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--
Nadia Rehman Yousafzai
Research Fellow (Climate Section)
Global Change Impact Studies Centre
First Floor Saudi Pak tower
Blue Area Islamabad Pakistan
Ph :   92-51-9219785
Fax : 92-51-9219787