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[GEMPAK #OGU-976090]: Using GDSTAT to average grids for multiple dates/times

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  • Subject: [GEMPAK #OGU-976090]: Using GDSTAT to average grids for multiple dates/times
  • Date: Thu, 08 Nov 2012 10:50:03 -0700
Hi Andrew,

it's the GDATTIM string that is limited to something like 84 or 128 characters, 
I can't recall.

The solution I'm thinking of right now, which is probably not the only one, is 
to run gddiag and/or gdmod to re-define the dates/times of the grids, collected 
into a single grid file. 

I'm on leave until November 19 but if I get a chance I'll look at this some 
more.  As it stands, GEMPAK can't deal with definitions longer than the maximum 
string length.

Michael


> Hello,
> 
> I'm looking to compute some standard statistics using GDSTAT using data
> from a total of 35 dates/times. I'm running into an issue where GDSTAT will
> only read 8 dates and times before GDSTAT throws a message saying that the
> input string is truncated.
> 
> Sample of GDSTAT output is below:
> 
> GEMPAK-GDSTAT>l
> GDFILE   = comp_ne_before.grd
> GDOUTF   = c.gem
> GDATTIM  =
> 020323/2100F000;030113/1500F000;030209/2100F0000;040315/0600F000;040323/2100F000;041203/2100F000;041217/1200F000;050111/0000F00
> GLEVEL   = 0
> GVCORD   = none
> GFUNC    = cape
> GRDNAM   = CAPE
> 
> GEMPAK-GDSTAT>r
> WARNING:  ST_NULL - Output string too small; input string truncated!
> GDSTAT PARAMETERS
> 
> Found  8 grids from  8 selected times.
> Times: 020323/2100F000     -050111/0000F000
> Maximum grid name:             MAXCAPE
> Minimum grid name:             MINCAPE
> Average grid name:             AVECAPE
> Standard deviation grid name:  SDVCAPE
> Count grid name:               CNTCAPE
> 
> I've also tried GDATTIM=ALL and GDATTIM=list, which raises and error
> message saying the TIME is invalid.
> 
> Is there any way to specify more than 8 specific case dates/times into
> GDATTIM so it computes an average from all 35 cases, or is there another
> workaround that I am missing?
> 
> Thank you so much for your help!
> 
> Sincerely,
> Andrew Loconto
> Meteorologist, NWS WFO Burlington, VT
> 
> --
> Andrew Loconto
> Meteorologist
> DOC/NOAA/NWS Burlington VT
> 
> 


Ticket Details
===================
Ticket ID: OGU-976090
Department: Support GEMPAK
Priority: Normal
Status: Open