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Re: 20010726: Filtering and station priorities?

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  • Subject: Re: 20010726: Filtering and station priorities?
  • Date: Fri, 27 Jul 2001 04:54:58 -0400 (EDT)
Hi,

I then chose to reorder the sfmetar_sa.tbl list for my preferences. In Canada it
is quite simple, small stations are W?? or X?? and airport stations are Y??. So
I just modified sfmetar_sa.tbl to put all W?? and X?? stations after the Y??
ones! Maybe I will then adjust more if this is still not 100% correct for my
taste.

Thanks everyone again!

Christian Page
UQAM

On Thu, 26 Jul 2001, Steve Chiswell wrote:

>
> Christian,
>
> You may enter a 2 digit station priority in your station table following
> the station elevation (or create a table of your own and use the sfstns
> program to update a gempak file already created).
>
> The $GEMTBL/stns/sfstns.tbl file is an example of the format for SPRI
> which is either 0 or 99; but, you will have to modify station priorities
> for your own preferences. At this point, the sfmetar_sa.tbl is not
> ordered with SPRI...but it can be added.
>
> As David showed, you can use the SPRI in the SFPARM functions to
> restrict the plotting. Otherwise, filter will give preference to
> the stations in the order they appear in the table (which is alphabetical).
>
> Steve Chiswell
> Unidata User Support
>
>
>
> On Thu, 26 Jul 2001, David Ovens wrote:
>
> > Christian,
> >
> > I do this with our surface plots (see
> > http://www.atmos.washington.edu/~ovens/loops/wxloop.cgi?sfc_wa+6, for
> > example) using spri in SFPARM as follows,
> >
> >  SFPARM   = skyc:.75;tmpf;wsym:1;smsl;blnk;dwpf;spri<4;brbk:1:1;mark:2
> >  FILTER   = no
> >
> > Unfortunately, I needed to write my own FORTRAN code to read these
> > priorities from our master station list and write them out to our
> > GEMPAK surface files.  Our LDM decodes obs using dcmetr and
> > $GEMTBL/stns/sfmetar_sa.tbl, and it does not have any station
> > priorities in it, so they all come out as 0.
> >
> > I include our pqact.conf entry in case someone has figured out how to
> > get priorities just by using dcmetr.
> >
> > DDS|IDS     ^S[AP].* .... ([0-3][0-9])([0-2][0-9])
> >     PIPE    /home/ldm/NAWIPS-5.6.A/bin/sol/dcmetr -b 9 -m 72 -s 
> > sfmetar_sa.tbl
> >     -d data/gempak/logs/dcmetr.log
> >     -e GEMTBL=/home/ldm/NAWIPS-5.6.A/gempak/tables
> >     data/gempak/surface/YYYYMMDD_sao.gem
> >
> > I can pass along my FORTRAN code if you are interested.
> >
> > David
> > --
> >
> > David Ovens         e-mail: address@hidden
> > (206) 685-8108          plan: Real-time MM5 forecasting for Pacific 
> > Northwest
> > Research Meteorologist
> > Dept of Atmospheric Sciences, Box 351640
> > University of Washington
> > Seattle, WA  98195
> >
> > Christian Page wrote:
> > >
> > >
> > > Hi,
> > >
> > > I apply some filter for some sfmap plots. I specify my area and garea to 
> > > be
> > > plotted like this:
> > >
> > > #45.30;-73.35;5;7
> > >
> > > with a filter of 0.7
> > >
> > > Is it possible to have station priorities for the filter, e.g. to choose 
> > > to plot
> > > some important stations and not other smaller ones?
> > >
> > > Thanks,
> > >
> > > Christian Page
> > > UQAM
> > >
> > >
> > >
> >
>
>