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20020104: GDPROF:GEMPAK Program question
- Subject: 20020104: GDPROF:GEMPAK Program question
- Date: Fri, 04 Jan 2002 16:04:36 -0700
Patrick,
The variable you want to plot "TMPC" will have to be available
in the grid file on the coordinate that you want to display.
For example, in the ETA grids, TMPK is available every 50 mb
on a pressure coordinate. So, you can plot:
GFUNC = tmpc
GVCORD = pres
PTYPE = log
tmpc is computed from the tmpk grids it finds on the pressure coordinate.
In the ETA grids (as provided from NCEP on NOAAPORT) you receive on the IDD,
only a few parameters are provided on the HGHT coordinate. Generally
you will find TMPK and RELH at 2m, and UREL and VREL at 10m. Since TMPK
is not provided at 10m, you get the TMPC not found at 10m message below.
You just don't have enough vertical levels on the hght coordinate
for your plot. 1 vertical level is all you would have. You woun't
be able to produce a vertical plot from one level.
You could use GDVINT to interpolate the data from pres to
hght levels, say every 100m, and then you could produce your plot
on the interpolated grids.
Steve Chiswell
Unidata User Support
>From: "Patrick O'Reilly" <address@hidden>
>Organization: UCAR/Unidata
>Keywords: 200201042140.g04Le3N29958
>This is a multi-part message in MIME format.
>
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>Hello Unidata'ers,
>
>I have been struggling, with my limited GEMPAK experience, to get some =
>model vertical profiles created. I have been able to get skew-t's done =
>but trying to get a linear plot of something versus height isn't =
>working. I am using gvcord=3Dhght and ptype=3Dlin, and simply trying to =
>get a temperature profile versus height, and it isn't happening for me. =
>I am getting "input grid TMPC ^020104/1200 @10%HGHT cannot be found" =
>error, and it's cousins. In looking through the email help, I saw a =
>similar problem, but not sure if it is the same. Since my plot is 66.1m =
>station elevation, is the program looking for TMPC grid that is below =
>ground level, i.e. 10 meters? That is my stab at it. What I am really =
>trying to plot is Virtual Potential Temperature vs. Height in feet. Any =
>assistance would be just super.
>
>Thanks!
>
>Patrick
>
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>Patrick O'Reilly Support Scientist
>The STORM Project address@hidden
>208 Latham Hall ph: 319-273-3789
>University of Northern Iowa
>Cedar Falls, IA 50614 =20
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ =20
>
>
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><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
><HTML><HEAD>
><META http-equiv=3DContent-Type content=3D"text/html; =
>charset=3Diso-8859-1">
><META content=3D"MSHTML 5.50.4522.1800" name=3DGENERATOR>
><STYLE></STYLE>
></HEAD>
><BODY bgColor=3D#efefef>
><DIV><FONT face=3D"MS Sans Serif" size=3D2>Hello =
>Unidata'ers,</FONT></DIV>
><DIV><FONT face=3D"MS Sans Serif" size=3D2></FONT> </DIV>
><DIV><FONT face=3D"MS Sans Serif" size=3D2>I have been struggling, with =
>my limited=20
>GEMPAK experience, to get some model vertical profiles =
>created. I=20
>have been able to get skew-t's done but trying to get a linear plot of =
>something=20
>versus height isn't working. I am using gvcord=3Dhght and =
>ptype=3Dlin, and=20
>simply trying to get a temperature profile versus height, and it isn't =
>happening=20
>for me. I am getting "input grid TMPC ^020104/1200 @10%HGHT cannot =
>be=20
>found" error, and it's cousins. In looking through the email help, =
>I saw a=20
>similar problem, but not sure if it is the same. Since my plot is =
>66.1m=20
>station elevation, is the program looking for TMPC grid that is below =
>ground=20
>level, i.e. 10 meters? That is my stab at it. What I am =
>really=20
>trying to plot is Virtual Potential Temperature vs. Height in =
>feet. Any=20
>assistance would be just super.</FONT></DIV>
><DIV><FONT face=3D"MS Sans Serif" size=3D2></FONT> </DIV>
><DIV><FONT face=3D"MS Sans Serif" size=3D2>Thanks!</FONT></DIV>
><DIV><FONT face=3D"MS Sans Serif" size=3D2></FONT> </DIV>
><DIV><FONT face=3D"MS Sans Serif" size=3D2>Patrick</FONT></DIV>
><DIV><FONT face=3D"MS Sans Serif" size=3D2></FONT> </DIV>
><DIV><FONT face=3D"MS Sans Serif"=20
>size=3D2>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<BR>Patrick=20
>O'Reilly  =
>; =
> =20
>Support Scientist<BR>The STORM=20
>Project =
> <A=20
>href=3D"mailto:address@hidden";>address@hidden</A><BR>20=
>8 Latham=20
>Hall &nb=
>sp; &nbs=
>p; =20
>ph: 319-273-3789<BR>University of Northern Iowa<BR>Cedar Falls, IA=20
>50614 &n=
>bsp;=20
><BR>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ =20
><BR></FONT></DIV></BODY></HTML>
>
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