[Met_help] [rt.rap.ucar.edu #70134] History for probabilistic FCST

[John Halley Gotway via RT]

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  Initial Request
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Hi John. 
I have a query reg the probabilistic FCST. 
Can I see one sample dataset so as to how it is???. 
The point stat tool also has probbilistic FCST O/P. 
I mean how is it verified????

geeta
 		 	   		  

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  Complete Ticket History
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Subject: probabilistic FCST
From: John Halley Gotway
Time: Wed Dec 17 10:14:24 2014

Geeta,

An example of verifying a probability of precipitation field is
included in
the test scripts distributed with the MET tarball.  Please take a look
at
met-5.0/scripts/test_grid_stat.sh.  The second call to grid_stat is
used to
evaluate probability of precip using this config file:
met-5.0/scripts/config/GridStatConfig_POP_12

Note in there the following...
   "prob = TRUE;" tells MET to interpret this data a probability
field.
   "cat_thresh = [ >=0.0, >=0.1, >=0.2, >=0.3, >=0.4, >=0.5, >=0.6,
>=0.7,
>=0.8, >=0.9, >=1.0 ];"
      Here the thresholds are used to fully partition the probability
space
from 0 to 1.  Note that if your probability data contains values from
0 to
100, MET automatically divides by 100 to rescale to the 0 to 1 range.

Thanks,
John

On Wed, Dec 17, 2014 at 9:18 AM, Geeta Geeta via RT
<met_help at ucar.edu>
wrote:
>
>
> Wed Dec 17 09:18:45 2014: Request 70134 was acted upon.
> Transaction: Ticket created by geeta124 at hotmail.com
>        Queue: met_help
>      Subject: probabilistic FCST
>        Owner: Nobody
>   Requestors: geeta124 at hotmail.com
>       Status: new
>  Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=70134 >
>
>
> Hi John.
> I have a query reg the probabilistic FCST.
> Can I see one sample dataset so as to how it is???.
> The point stat tool also has probbilistic FCST O/P.
> I mean how is it verified????
>
> geeta
>
>

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