[Met_help] [rt.rap.ucar.edu #44955] History for PCPAccum Question

[RAL HelpDesk {for Paul Oldenburg}]

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  Initial Request
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Hi guys (nice to see Barb Brown again out here in Omaha).  I am trying to
accumulate 24hrs Land Surface Model precipitation data from 12Z on the 19th
to 12Z on the 20th.  The attached file (model_pcp) which contains the grib
data.  When I run with the following pcp_combine command line,
/sphome/qcteam/METv3.0/bin/pcp_combine -sum 20110219_120000        3
20110220_120000 24 /h/data/global/WXQC/data/met/temp/pcpdir/lis_pcp_data
-pcpdir /h/data/global/WXQC/data/met/temp/pcpdir -pcprx model_pcp, I get the
error:  ERROR: sum_grib_files() -> Cannot find a file with a valid time of
20110220_120000 and accumulation time of 030000 matching the regular
expression "model_pcp".  Looking in the model_pcp file the 20th at 12Z is
present.  What is causing this error?

 

Please send your response directly to me - I typically don't get the
responses from your automated system

 

Thanks

 

Bob 



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  Complete Ticket History
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Subject: Re: [rt.rap.ucar.edu #44955] PCPAccum Question
From: Paul Oldenburg
Time: Mon Feb 28 13:18:07 2011

Bob,

The model data you sent has multiple init times present in it.  It is
unusual to accumulate precip from different init
times together, unless the input files contain observation data.
Otherwise, the resulting accumulations contain will
precip from different forecasts.   If you want to do this, use the
string 00000000_000000 as the init time:

$ pcp_combine -sum 00000000_000000 3 20110220_12 24 wrf_pcp_data -v 3
-pcpdir .
Performing sum command: Init/In_Accum/Valid/Out_Accum Times =
00000000_000000/030000/20110220_120000/240000
Searching for 8 files with accumulation times of 030000 to sum to a
total accumulation time of 240000.
[1] File ./model_pcp matches valid time of 20110220_120000
[2] File ./model_pcp matches valid time of 20110220_090000
[3] File ./model_pcp matches valid time of 20110220_060000
[4] File ./model_pcp matches valid time of 20110220_030000
[5] File ./model_pcp matches valid time of 20110220_000000
[6] File ./model_pcp matches valid time of 20110219_210000
[7] File ./model_pcp matches valid time of 20110219_180000
[8] File ./model_pcp matches valid time of 20110219_150000
[1] Reading input file: ./model_pcp
GRIB Record 13: Init = 20110220_090000, Valid = 20110220_120000, Accum
= 030000, Min = 0, Max = 6
[2] Reading input file: ./model_pcp
GRIB Record 12: Init = 20110220_060000, Valid = 20110220_090000, Accum
= 030000, Min = 0, Max = 15
[3] Reading input file: ./model_pcp
GRIB Record 11: Init = 20110220_030000, Valid = 20110220_060000, Accum
= 030000, Min = 0, Max = 12
[4] Reading input file: ./model_pcp
GRIB Record 10: Init = 20110220_000000, Valid = 20110220_030000, Accum
= 030000, Min = 0, Max = 4
[5] Reading input file: ./model_pcp
GRIB Record 9: Init = 20110219_210000, Valid = 20110220_000000, Accum
= 030000, Min = 0, Max = 22
[6] Reading input file: ./model_pcp
GRIB Record 8: Init = 20110219_180000, Valid = 20110219_210000, Accum
= 030000, Min = 0, Max = 22
[7] Reading input file: ./model_pcp
GRIB Record 7: Init = 20110219_150000, Valid = 20110219_180000, Accum
= 030000, Min = 0, Max = 22
[8] Reading input file: ./model_pcp
GRIB Record 6: Init = 20110219_120000, Valid = 20110219_150000, Accum
= 030000, Min = 0, Max = 22
Writing output file: wrf_pcp_data

For more information, see page 3-17 of the METv3.0 User's Guide here:

http://www.dtcenter.org/met/users/docs/users_guide/MET_Users_Guide_v3.0.2.pdf

Paul



On 02/28/2011 12:03 PM, RAL HelpDesk {for Craig, Robert J Civ USAF
AFWA 16 WS/WXN} wrote:
>
> Mon Feb 28 12:03:46 2011: Request 44955 was acted upon.
> Transaction: Ticket created by craigr at offutt.af.mil
>        Queue: met_help
>      Subject: PCPAccum Question
>        Owner: Nobody
>   Requestors: craigr at offutt.af.mil
>       Status: new
>  Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=44955 >
>
>
> Hi guys (nice to see Barb Brown again out here in Omaha).  I am
trying to
> accumulate 24hrs Land Surface Model precipitation data from 12Z on
the 19th
> to 12Z on the 20th.  The attached file (model_pcp) which contains
the grib
> data.  When I run with the following pcp_combine command line,
> /sphome/qcteam/METv3.0/bin/pcp_combine -sum 20110219_120000        3
> 20110220_120000 24
/h/data/global/WXQC/data/met/temp/pcpdir/lis_pcp_data
> -pcpdir /h/data/global/WXQC/data/met/temp/pcpdir -pcprx model_pcp, I
get the
> error:  ERROR: sum_grib_files() -> Cannot find a file with a valid
time of
> 20110220_120000 and accumulation time of 030000 matching the regular
> expression "model_pcp".  Looking in the model_pcp file the 20th at
12Z is
> present.  What is causing this error?
>
>
>
> Please send your response directly to me - I typically don't get the
> responses from your automated system
>
>
>
> Thanks
>
>
>
> Bob
>
>


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