[Met_help] [rt.rap.ucar.edu #93389] History for PCP_Combine Question

[John Halley Gotway via RT]

----------------------------------------------------------------
  Initial Request
----------------------------------------------------------------

Hello,

We are attempting to use pcp_combine to add up 6 hour QPF forecast however
we have some odd cycle hours (i.e 01Z, 07Z, 13Z, and 19Z).

When using the tool we get the error:
ERROR  : do_sum_command() -> The lead time (290000) must be divisible by
the input accumulation time (060000).

We were trying to compute a 24-hr total ending at F029.

By chance is there any way around this?  We are using MET 6.0 so would
upgrading be an option?

Thanks for any suggestions you might have.
Bruce

-- 
Bruce Veenhuis
Meteorologist
NWS/NCEP/Weather Prediction Center


----------------------------------------------------------------
  Complete Ticket History
----------------------------------------------------------------

Subject: PCP_Combine Question
From: David Fillmore
Time: Fri Dec 06 15:47:19 2019

Hi Bruce - the newer versions of MET still have the divisibility
requirement.
John: do you have any suggestions for a workaround?
thanks,
David

On Fri, Dec 6, 2019 at 11:51 AM Bruce Veenhuis - NOAA Federal via RT <
met_help at ucar.edu> wrote:

>
> Fri Dec 06 11:50:30 2019: Request 93389 was acted upon.
> Transaction: Ticket created by bruce.veenhuis at noaa.gov
>        Queue: met_help
>      Subject: PCP_Combine Question
>        Owner: Nobody
>   Requestors: bruce.veenhuis at noaa.gov
>       Status: new
>  Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=93389 >
>
>
> Hello,
>
> We are attempting to use pcp_combine to add up 6 hour QPF forecast
however
> we have some odd cycle hours (i.e 01Z, 07Z, 13Z, and 19Z).
>
> When using the tool we get the error:
> ERROR  : do_sum_command() -> The lead time (290000) must be
divisible by
> the input accumulation time (060000).
>
> We were trying to compute a 24-hr total ending at F029.
>
> By chance is there any way around this?  We are using MET 6.0 so
would
> upgrading be an option?
>
> Thanks for any suggestions you might have.
> Bruce
>
> --
> Bruce Veenhuis
> Meteorologist
> NWS/NCEP/Weather Prediction Center
>
>

------------------------------------------------
Subject: PCP_Combine Question
From: John Halley Gotway
Time: Fri Dec 06 16:09:23 2019

Hi Bruce,

I see that you're running pcp_combine from MET version 6.0.  And the
logic
for the sum command is not sufficient for the data you're using.

I'd recommend switching from using the "sum" command to using the
"add"
command instead.  Ultimately, they perform the same option, but the
command
line arguments differ.  The "sum" command searches the input directory
for
the right files to use, whereas with "add", you explicitly specify
which
files to use on the command line.  For example:

*pcp_combine -add \*
*fcst_file_f29.grb 06 \*
*fcst_file_f23.grb 06 \*
*fcst_file_f17.grb 06 \*
*fcst_file_f11.grb 06 \*
*APCP_24_F05_to_F29.nc*

This command gets the 06-hour precipitation accumulation from each
input file, adds them up, and writes the result to the file
named APCP_24_F05_to_F29.nc.

Hope that helps.

John

On Fri, Dec 6, 2019 at 3:47 PM David Fillmore via RT
<met_help at ucar.edu>
wrote:

>
> <URL: https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=93389 >
>
> Hi Bruce - the newer versions of MET still have the divisibility
> requirement.
> John: do you have any suggestions for a workaround?
> thanks,
> David
>
> On Fri, Dec 6, 2019 at 11:51 AM Bruce Veenhuis - NOAA Federal via RT
<
> met_help at ucar.edu> wrote:
>
> >
> > Fri Dec 06 11:50:30 2019: Request 93389 was acted upon.
> > Transaction: Ticket created by bruce.veenhuis at noaa.gov
> >        Queue: met_help
> >      Subject: PCP_Combine Question
> >        Owner: Nobody
> >   Requestors: bruce.veenhuis at noaa.gov
> >       Status: new
> >  Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=93389 >
> >
> >
> > Hello,
> >
> > We are attempting to use pcp_combine to add up 6 hour QPF forecast
> however
> > we have some odd cycle hours (i.e 01Z, 07Z, 13Z, and 19Z).
> >
> > When using the tool we get the error:
> > ERROR  : do_sum_command() -> The lead time (290000) must be
divisible by
> > the input accumulation time (060000).
> >
> > We were trying to compute a 24-hr total ending at F029.
> >
> > By chance is there any way around this?  We are using MET 6.0 so
would
> > upgrading be an option?
> >
> > Thanks for any suggestions you might have.
> > Bruce
> >
> > --
> > Bruce Veenhuis
> > Meteorologist
> > NWS/NCEP/Weather Prediction Center
> >
> >
>
>

------------------------------------------------
Subject: PCP_Combine Question
From: Bruce Veenhuis - NOAA Federal
Time: Mon Dec 09 09:49:11 2019

OK, excellent.  We will give that a try.

Thank you!
Bruce

On Fri, Dec 6, 2019 at 6:09 PM John Halley Gotway via RT
<met_help at ucar.edu>
wrote:

> Hi Bruce,
>
> I see that you're running pcp_combine from MET version 6.0.  And the
logic
> for the sum command is not sufficient for the data you're using.
>
> I'd recommend switching from using the "sum" command to using the
"add"
> command instead.  Ultimately, they perform the same option, but the
command
> line arguments differ.  The "sum" command searches the input
directory for
> the right files to use, whereas with "add", you explicitly specify
which
> files to use on the command line.  For example:
>
> *pcp_combine -add \*
> *fcst_file_f29.grb 06 \*
> *fcst_file_f23.grb 06 \*
> *fcst_file_f17.grb 06 \*
> *fcst_file_f11.grb 06 \*
> *APCP_24_F05_to_F29.nc*
>
> This command gets the 06-hour precipitation accumulation from each
> input file, adds them up, and writes the result to the file
> named APCP_24_F05_to_F29.nc.
>
> Hope that helps.
>
> John
>
> On Fri, Dec 6, 2019 at 3:47 PM David Fillmore via RT
<met_help at ucar.edu>
> wrote:
>
> >
> > <URL: https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=93389 >
> >
> > Hi Bruce - the newer versions of MET still have the divisibility
> > requirement.
> > John: do you have any suggestions for a workaround?
> > thanks,
> > David
> >
> > On Fri, Dec 6, 2019 at 11:51 AM Bruce Veenhuis - NOAA Federal via
RT <
> > met_help at ucar.edu> wrote:
> >
> > >
> > > Fri Dec 06 11:50:30 2019: Request 93389 was acted upon.
> > > Transaction: Ticket created by bruce.veenhuis at noaa.gov
> > >        Queue: met_help
> > >      Subject: PCP_Combine Question
> > >        Owner: Nobody
> > >   Requestors: bruce.veenhuis at noaa.gov
> > >       Status: new
> > >  Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=93389
> >
> > >
> > >
> > > Hello,
> > >
> > > We are attempting to use pcp_combine to add up 6 hour QPF
forecast
> > however
> > > we have some odd cycle hours (i.e 01Z, 07Z, 13Z, and 19Z).
> > >
> > > When using the tool we get the error:
> > > ERROR  : do_sum_command() -> The lead time (290000) must be
divisible
> by
> > > the input accumulation time (060000).
> > >
> > > We were trying to compute a 24-hr total ending at F029.
> > >
> > > By chance is there any way around this?  We are using MET 6.0 so
would
> > > upgrading be an option?
> > >
> > > Thanks for any suggestions you might have.
> > > Bruce
> > >
> > > --
> > > Bruce Veenhuis
> > > Meteorologist
> > > NWS/NCEP/Weather Prediction Center
> > >
> > >
> >
> >
>
>

--
Bruce Veenhuis
Meteorologist
NWS/NCEP/Weather Prediction Center

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