[Met_help] [rt.rap.ucar.edu #71115] History for Sir，I got a problem using Wavelet_stat

[John Halley Gotway via RT]

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  Initial Request
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Hello,
      In my test I transform wrfout using UPP and the total precipitation variable in wrfprs_d02.00 is A_PCP_GDS3_SFC_acc. 
      But when I use met to perform a wavelet_stat, and set       " name       = "A_PCP_GDS3_SFC_acc";"   in WaveletStatConfig,
the error is ERROR  : 
ERROR  : VarInfoGrib::set_dict() - unrecognized GRIB1 field abbreviation 'R_H_GDS3_HTGL' for table version 2
ERROR  :         
      It can be seen from file WaveletStatConfig_default that "name="APCP"" and "level=[ "A03" ]" ,but the sample data "data/sample_fcst/2005080700/wrfprs_ruc13_12.tm00_G212" doesn't have a var named "APCP".  
     I have no idea what does that mean and I do like to know how to fill "name" and "level" in WaveletStatConfig.


    Thanks for your consideration!



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  Complete Ticket History
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Subject: Sir，I got a problem using Wavelet_stat
From: John Halley Gotway
Time: Fri Mar 27 11:04:57 2015

My apologies for no writing sooner.  Somehow this met_help ticket got
lost in the shuffle.  Are you still experiencing problems running the
wavelet-stat tool in MET?

Thanks,
John Halley Gotway
met_help at ucar.edu

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Subject: Sir，I got a problem using Wavelet_stat
From: Zhuang from Nuist
Time: Wed Apr 01 02:59:56 2015

Thanks very much for your kind consideration! I have solved some
questions with your kindly help.
Wish everything goes well!








At 2015-03-28 01:04:57, "John Halley Gotway via RT"
<met_help at ucar.edu> wrote:
>My apologies for no writing sooner.  Somehow this met_help ticket got
lost in the shuffle.  Are you still experiencing problems running the
wavelet-stat tool in MET?
>
>Thanks,
>John Halley Gotway
>met_help at ucar.edu

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Subject: Sir，I got a problem using Wavelet_stat
From: Zhuang from Nuist
Time: Sun Apr 19 05:32:28 2015

Sir:
     As seen from user guide, MET can calculate Brier score
,reliability Diagram and ROC curve by Grid-stat.  Could it caculate it
for ensemble forecast? If so ,how could I do that.
Thanks very much!








At 2015-04-01 23:55:05, "John Halley Gotway via RT"
<met_help at ucar.edu> wrote:
>According to our records, your request has been resolved. If you have
any
>further questions or concerns, please respond to this message.

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Subject: Sir，I got a problem using Wavelet_stat
From: John Halley Gotway
Time: Mon Apr 20 11:03:01 2015

Zhuang,

The Brier Score, Reliability Diagram, and ROC curve are included in
the
probabilistic output lines from Grid-Stat.  You would need to generate
a
probability field in some way and pass that to the Grid-Stat tool.
For
example, suppose you have a probability of precipitation (POP) field
containing values from 0 to 100 to indicate the likelihood of
precipitation
occurring for each grid point.  You pass Grid-Stat that POP forecast
along
with observations of precipitation, and you'd choose a threshold for
the
observations that define the event of the probability... for POP, you
might
threshold the observed precip >0.

Your next question might be - how do I take my ensemble output and
generate
a probabilistic forecast?  There are many methods for converting
ensemble
data into probabilities and it's an active area of research.  However,
the
Ensemble-Stat tool provides the most basic method... you choose a
threshold
and for each grid point, it computes the proportion of ensemble
members
that meet the threshold criteria.  We call it the "relative
frequency".

So one possibility is to run Ensemble-Stat to compute relative
frequencies
and use Grid-Stat to verify them as probabilities.

Hope that helps.

Thanks,
John Halley Gotway
met_help at ucar.edu

On Sun, Apr 19, 2015 at 5:32 AM, Zhuang from Nuist via RT
<met_help at ucar.edu
> wrote:

>
> <URL: https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=71115 >
>
> Sir:
>      As seen from user guide, MET can calculate Brier score
,reliability
> Diagram and ROC curve by Grid-stat.  Could it caculate it for
ensemble
> forecast? If so ,how could I do that.
> Thanks very much!
>
>
>
>
>
>
>
>
> At 2015-04-01 23:55:05, "John Halley Gotway via RT"
<met_help at ucar.edu>
> wrote:
> >According to our records, your request has been resolved. If you
have any
> >further questions or concerns, please respond to this message.
>
>

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