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20010912: time intervals, surface data

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  • Subject: 20010912: time intervals, surface data
  • Date: Wed, 12 Sep 2001 18:49:49 -0600
>From: Thomas Don Aratari <address@hidden>
>Organization: UCAR/Unidata
>Keywords: 200109122211.f8CMBt116346

>
>
>Hello all.. I was wondering if I could change the surface data to
>display in hour intervals instead of the default 20 min intervals.. is
>this configurable?
>
>Thanks!
>
>Thomas
>
>
>
>

Thomas,

Yes. In sfmap, if you are displaying a DATTIM range, use the interval
as 1 hour, eg: DATTIM=1200-1800-0100 will produce times
of 1200, 1300, 1400, 1500, 1600, 1700 and 1800.

In NMAP/NMAP2, use a skip factor of 2 as shown near the bottom of
http://www.unidata.ucar.edu/packages/gempak/tutorial/nmap_data.html
or click on the times desired.

In Garp, Select individual times from a list of times in the menu
by using the "ctrl + left_mouse_button"option to pick separate
times (rather than a range).

Or, if you really don't want the off times in the decoded data file,
change the -m 72 on the dcmetr decoder invocation to -m 24. The dcmetr
decoder will only decode the +20 and +40 observations when the -m value 
is 72.

Steve Chiswell
Unidata User Support