Double precision & adaptable z dimension

[Charles Seman]

Jim,

Please find attached a GrADS script called "skewt.gs" which uses a GrADS
variable "pp" (listed in the GrADS ctl file being used) to define a
local GrADS ctl file (skewt.ctl, attached) with "pp" (scaled to "hPa")
as the "zdef" parameter for Bob Hart's "plotskew.gs" function... the
"skewt.gs" script currently is set up to do this at one location:
(xloc,yloc) = (x,y) = (1,1), but could be adapted to do more than one
point...

I hope this helps,
Chuck

Jim Benedict wrote:
> I have two questions:
>
> 1.  Can GrADS handle double precision numbers (8 byte)?  I have only
> had success with integers and floats (reals) as mentioned in the
> GrADS documentation... just wanted to confirm that 8-byte doubles
> cannot be used.
>
> 2.  I write two variables to the same file.  The first variable
> (rec=1) lists pressure values, the second (rec=2) heating rates.  I'd
> like to be able to plot the heating rate vertical profile using the
> listed pressure values as the z dimension.  Can I do this without
> listing every pressure value in the control file?  The pressure
> values are not uniformly spaced (can't use LINEAR for ZDEF) and are
> subject to change (can't use LEVELS for ZDEF).  Also, I have 199
> vertical levels, so writing the list out in the control file would be
> difficult.
>
> Any help would be appreciated.  Thanks!
> - Jim Benedict

--

Please note that Charles.Seman at noaa.gov should be considered my NOAA
email address, not cjs at gfdl.noaa.gov.

********************************************************************
 Charles Seman                                Charles.Seman at noaa.gov
 U.S. Department of Commerce / NOAA / OAR
 Geophysical Fluid Dynamics Laboratory         voice: (609) 452-6547
 201 Forrestal Road                              fax: (609) 987-5063
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