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19990127: GEMPAK Question

Colin,
To contour isopleths, you need to run oabsfc on the surface
data to create a gridded data set. Then, you can use
gdcntr on the data to overlay the isopleths on the surface plot, 
just as you would model data output. 

You can use model data (such as the RUC) rather than gridding
the surface data if you don't want to do the gridding step.
Since hourly surface observations are probably reasonably
complete by ~10 minutes after the hour, you could schedule
the oabsfc to run about that time automatically.

There is still no way to skip the gridding step for contours
directly from the surface or upperair data.

Steve Chiswell
Unidata User Support
address@hidden



>From: "Collin Daly" <address@hidden>
>Organization: .
>Keywords: 199901272025.NAA21326

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>Hello,
>     I have a quick question regarding GEMPAK and its capabilities.  Do =
>you know if there is a way to analyze real-time data with GEMPAK 5.1?  =
>Specifically, can you plot isolines on the current surface map?  If not, =
>1) can you can you take the model run initialization data and use that =
>as a "late" surface analysis, and 2) does GEMPAK 5.4 have this =
>capability? =20
>Thank you,
>Collin
>
>
>Collin Daly
>Meteorological Systems Engineer
>Alden Electronics, Inc.
>40 Washington Street
>Westborough, Ma 01581
>Voice: (508)366-8851x2268
>Fax:    (508)898-2427
>e-mail: address@hidden
>  visit us at:
>http://www.alden.com
>
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><BODY bgColor=3D#ffffff>
><DIV><FONT color=3D#000000 size=3D2>Hello,</FONT></DIV>
><DIV><FONT color=3D#000000 size=3D2>&nbsp;&nbsp;&nbsp;&nbsp; I have a =
>quick question=20
>regarding GEMPAK and its capabilities.&nbsp; Do you know if there is a =
>way to=20
>analyze real-time data with GEMPAK 5.1?&nbsp; Specifically, can you plot =
>
>isolines on the current surface map?&nbsp; If not, 1) can you can you =
>take the=20
>model run initialization data and use that as a &quot;late&quot; surface =
>
>analysis, and 2) does GEMPAK 5.4 have this capability?&nbsp; =
></FONT></DIV>
><DIV><FONT color=3D#000000 size=3D2></FONT><FONT size=3D2>Thank =
>you,</FONT></DIV>
><DIV><FONT size=3D2>Collin</FONT></DIV>
><DIV><FONT color=3D#000000 size=3D2></FONT>&nbsp;</DIV>
><DIV><FONT color=3D#000000 size=3D2></FONT>&nbsp;</DIV>
><DIV><FONT color=3D#000000 size=3D2>Collin Daly<BR>Meteorological =
>Systems=20
>Engineer<BR>Alden Electronics, Inc.<BR>40 Washington =
>Street<BR>Westborough, Ma=20
>01581<BR>Voice: (508)366-8851x2268<BR>Fax:&nbsp;&nbsp;&nbsp;=20
>(508)898-2427<BR>e-mail: <A=20
>href=3D"mailto:address@hidden";>address@hidden</A><BR>&nbsp; visit us =
>at:<BR><A=20
>href=3D"http://www.alden.com";>http://www.alden.com</A><BR></FONT></DIV></=
>BODY></HTML>
>
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