> 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
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