[Met_help] [rt.rap.ucar.edu #78332] History for the "missed " samples for CTC calculation for the composite reflectivity observation.

[Julie Prestopnik via RT]

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

Dear Mr. or Mrs,
I have a problem using Met _grid state to obtain the CTC for the composite
reflectivity.


>From the output of met_grid_stat, the numbers for dbz observation >20  are
always 0 (namely, numbers for ify_Oy and ifn_OY are always 0).  By wgrib2
seeing the observation file, I know there are maximum refc values larger
than 60dbz.  so, there should be  other problems with my use of the
metradar tool.
In the Met running, there were warning message:
^^
WARNING:
WARNING: Multiple GRIB2 table entries match lookup criteria (parm_name =
REFC):
WARNING:   parm_name: REFC, index_a = 0, index_b = 16, index_c = 5
WARNING:   parm_name: REFC, index_a = 0, index_b = 16, index_c = 196
WARNING: Using:   parm_name: REFC, index_a = 0, index_b = 16, index_c = 5
WARNING:
WARNING:
WARNING: Multiple GRIB2 table entries match lookup criteria (parm_name =
REFC):
WARNING:   parm_name: REFC, index_a = 0, index_b = 16, index_c = 5
WARNING:   parm_name: REFC, index_a = 0, index_b = 16, index_c = 196
WARNING: Using:   parm_name: REFC, index_a = 0, index_b = 16, index_c = 5

VV

The MET in the NAMRR is first implemented by Jacob Charley. He has been
using it smoothly, while some quantities like CTC causing the problem here
were not calculated by him.   He pointed out the differences between his
and mine. I also attached here.
^^
I'm using :

//
// Statistical output types
//
output_flag = {
   fho    = BOTH;
   ctc    = BOTH;
   cts    = BOTH;
   mctc   = BOTH;
   mcts   = BOTH;
   cnt    = BOTH;
   sl1l2  = BOTH;
   vl1l2  = BOTH;
   pct    = BOTH;
   pstd   = BOTH;
   pjc    = BOTH;
   prc    = BOTH;
   nbrctc = BOTH;
   nbrcts = BOTH;
   nbrcnt = BOTH;
};

where Jacob used, no problem:

//
// Statistical output types
//
output_flag = {
   fho    = NONE;
   ctc    = NONE;
   cts    = NONE;
   mctc   = NONE;
   mcts   = NONE;
   cnt    = NONE;
   sl1l2  = NONE;
   vl1l2  = NONE;
   pct    = NONE;
   pstd   = NONE;
   pjc    = NONE;
   prc    = NONE;
   nbrctc = NONE;
   nbrcts = NONE;
   nbrcnt = STAT;
};

VV
Your help is appreciated.
Best Regards,
Ting


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

Subject: the "missed " samples for CTC calculation for the composite reflectivity observation.
From: Julie Prestopnik
Time: Thu Oct 20 08:42:52 2016

Hi Ting.

Could you please upload your data to our anonymous ftp site as follows
so
that I can take a look?

http://www.dtcenter.org/met/users/support/met_help.php#ftp

Also, could you please pass on the command you are running?

Thanks,
Julie

On Wed, Oct 19, 2016 at 10:58 AM, Ting Lei - NOAA Affiliate via RT <
met_help at ucar.edu> wrote:

>
> Wed Oct 19 10:58:40 2016: Request 78332 was acted upon.
> Transaction: Ticket created by ting.lei at noaa.gov
>        Queue: met_help
>      Subject: the "missed " samples for CTC calculation for the
composite
> reflectivity observation.
>        Owner: Nobody
>   Requestors: ting.lei at noaa.gov
>       Status: new
>  Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=78332 >
>
>
> Dear Mr. or Mrs,
> I have a problem using Met _grid state to obtain the CTC for the
composite
> reflectivity.
>
>
> From the output of met_grid_stat, the numbers for dbz observation
>20  are
> always 0 (namely, numbers for ify_Oy and ifn_OY are always 0).  By
wgrib2
> seeing the observation file, I know there are maximum refc values
larger
> than 60dbz.  so, there should be  other problems with my use of the
> metradar tool.
> In the Met running, there were warning message:
> ^^
> WARNING:
> WARNING: Multiple GRIB2 table entries match lookup criteria
(parm_name =
> REFC):
> WARNING:   parm_name: REFC, index_a = 0, index_b = 16, index_c = 5
> WARNING:   parm_name: REFC, index_a = 0, index_b = 16, index_c = 196
> WARNING: Using:   parm_name: REFC, index_a = 0, index_b = 16,
index_c = 5
> WARNING:
> WARNING:
> WARNING: Multiple GRIB2 table entries match lookup criteria
(parm_name =
> REFC):
> WARNING:   parm_name: REFC, index_a = 0, index_b = 16, index_c = 5
> WARNING:   parm_name: REFC, index_a = 0, index_b = 16, index_c = 196
> WARNING: Using:   parm_name: REFC, index_a = 0, index_b = 16,
index_c = 5
>
> VV
>
> The MET in the NAMRR is first implemented by Jacob Charley. He has
been
> using it smoothly, while some quantities like CTC causing the
problem here
> were not calculated by him.   He pointed out the differences between
his
> and mine. I also attached here.
> ^^
> I'm using :
>
> //
> // Statistical output types
> //
> output_flag = {
>    fho    = BOTH;
>    ctc    = BOTH;
>    cts    = BOTH;
>    mctc   = BOTH;
>    mcts   = BOTH;
>    cnt    = BOTH;
>    sl1l2  = BOTH;
>    vl1l2  = BOTH;
>    pct    = BOTH;
>    pstd   = BOTH;
>    pjc    = BOTH;
>    prc    = BOTH;
>    nbrctc = BOTH;
>    nbrcts = BOTH;
>    nbrcnt = BOTH;
> };
>
> where Jacob used, no problem:
>
> //
> // Statistical output types
> //
> output_flag = {
>    fho    = NONE;
>    ctc    = NONE;
>    cts    = NONE;
>    mctc   = NONE;
>    mcts   = NONE;
>    cnt    = NONE;
>    sl1l2  = NONE;
>    vl1l2  = NONE;
>    pct    = NONE;
>    pstd   = NONE;
>    pjc    = NONE;
>    prc    = NONE;
>    nbrctc = NONE;
>    nbrcts = NONE;
>    nbrcnt = STAT;
> };
>
> VV
> Your help is appreciated.
> Best Regards,
> Ting
>
>


--
Julie Prestopnik
National Center for Atmospheric Research
Research Applications Laboratory
Phone: 303.497.8399
Email: jpresto at ucar.edu

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