[gradsusr] Gribmap question
Wesley Ebisuzaki
Wesley.Ebisuzaki at noaa.gov
Thu Jul 15 11:06:52 EDT 2010
Bernd,
You need the -b option in gribmap
-b -> use the start of the averaging period.
Status of -b
grib1:
gribmap supports -b
grib2ctl does not support -b
grib2:
gribmap supports -b (v2.0a8)
g2ctl supports -b
Wesley Ebisuzaki
Becker, Bernd wrote:
> Hi,
>
> how can I write a .ctl file for grib data,
> describing an average over a period of days starting at a
> certain distance from the initial data time?
>
> The Grib file contains 3 pieces of date information:
> time, the forecast run was initialized
> start time
> end time of averaging period
>
> for each grib field in the file. The file contains 4 monthly means:
>
> initial time: 20100622
> start time : 20100701
> end time : 30 days later (20100731)
>
> initial time: 20100622
> start time : 20100801
> end time : 30 days later (20100831)
>
> initial time: 20100622
> start time : 20100901
> end time : 29 days later (20100930)
>
> initial time: 20100622
> start time : 20101001
> end time : 30 days later (20101031)
>
> tdef in ctl file :
> tdef 4 linear 00Z01Jul2010 1mo
>
> This does not work.
>
> I tried gribmap with:
> -t0
> -fnnn
> to no avail
> and need some input from you.
>
> Many thanks!
> Bernd.
>
> --
> Bernd Becker Climate Impacts Product Development
> Met Office Hadley Centre FitzRoy Road Exeter Devon EX1 3PB United
> Kingdom
> Tel.: +44 (0) 1392 884511 Fax: +44 (0)870 900 5050
> E-mail:bernd.becker at metoffice.gov.uk - http://www.metoffice.gov.uk
>
>
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