[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

20031218: Gempak - SUN and LINUX - SNCROSS VORTICITY

This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.

  • Subject: 20031218: Gempak - SUN and LINUX - SNCROSS VORTICITY
  • Date: Fri, 19 Dec 2003 12:57:43 -0700
>From: "Jason Shafer" <address@hidden>
>Organization: UCAR/Unidata
>Keywords: 200312190140.hBJ1eQOJ029963

>Institution: CIRP / University of Utah 
>Package Version: 5.6
>Operating System: SUN and LINUX
>Hardware Information: SUN
>Inquiry: HI, 
>   
>    I was wondering if there was a way to plot vorticity with sncross or anoth
> er one of the sn* programs? I tried snparm = avor(obs) to no avail. Thanks fo
> r your time.
>
>Jay
>
>
>

Jay,
avor() is a GPARM grid function, and not valid for use as a SNPARM.

Vorticity requires a calculation of dv/dx - du/dy which is easily done
in gridded data, if you run OABSND on an uppar air data file to
produce a gridded data set.

Steve Chiswell