Re: NCL and MM5

> I'm trying to make some plots from MM5 outputs with NCL, but I'm confusing
> about how to obtain sea-level pressure and geopotential height from these
> data. I saw in NCL website some functions for the Meteorological purpose, but
> some arguments are confusing me.
>
> Can someone help me with a example on calculating such fields?
> _______________________________________________

[MM5 or WRF?]

MM5: I think it is best that you ask MM5's mesouser_at_ucar.edu
       http://www.mmm.ucar.edu/mm5/support/mesouser.html

WRF: wrfhelp_at_ucar.edu

         float PH(Time, bottom_top_stag, south_north, west_east) ;
                 PH:FieldType = 104 ;
                 PH:MemoryOrder = "XYZ" ;
                 PH:description = "perturbation geopotential" ;
                 PH:units = "m{2} s{-2}" ;
                 PH:stagger = "Z" ;
         float PHB(Time, bottom_top_stag, south_north, west_east) ;
                 PHB:FieldType = 104 ;
                 PHB:MemoryOrder = "XYZ" ;
                 PHB:description = "base-state geopotential" ;
                 PHB:units = "m{2} s{-2}" ;
                 PHB:stagger = "Z" ;

         f = addfile ("...", "r")

         pb = f->PB
         pbh = f->PBH
         z = pb
         z = pb + pbh
         z_at_description = "geopotential"

        slp ???

Good luck
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Received on Tue Jul 04 2006 - 12:58:03 MDT