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

[GEMPAK #YXO-960516]: NLDN data in GEMPAK

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 Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated.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: [GEMPAK #YXO-960516]: NLDN data in GEMPAK
  • Date: Tue, 04 Mar 2014 14:41:00 -0700
Hi Kyle,

I do not have any experience with NLDN data in .dff format, so my help here may 
be limited.  But I would think that running the "raw" NLDN files through the 
DCNLDN decoder should work.

For example, "dcnldn nldn.gem < nldn_2014_063.dff" will create a GEMPAK point 
file nldn.gem which can then be displayed using any of the SF graphics 
programs.  

I would say try that first, see where it takes you, and write me back if you 
have more questions.  If you're new to GEMPAK and need help with creating the 
overlay once your data are in the right format, I'm here to help with that.

Michael James
Unidata


> Hello,
> 
> I am a graduate student at SUNY-Albany working on thundersnow research
> under my advisors, Lance Bosart and Dan Keyser. One of the things we
> would like to do is create loops that overlay NLDN data with radar
> data and other diagnostics (vorticity advection, temperature advection,
> upper-level jets, etc.).
> 
> My main inquiry is this... we have NLDN data stored in-house as .dff
> files, which I am able to convert to ASCII files with the following format
> (example): 11/01/07  01:57:29  27.134  -80.262  -256.5  02. Ideally,
> I would like to use GEMPAK to display lightning data but I have no idea
> where to start.
> 
> Any help would be greatly appreciated!
> 
> Best regards,
> 
> Kyle Meier
> 
> 

Ticket Details
===================
Ticket ID: YXO-960516
Department: Support GEMPAK
Priority: Critical
Status: Open