[Met_help] [rt.rap.ucar.edu #88815] History for RH values in pointstat

[John Halley Gotway via RT]

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  Initial Request
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Hello

I am using the prepbufr data from ucar.edu in netcdf format and by applying the UPP to the WRF. The issue is from UCAR the RH is in % (say 80%) but from the UPP I get in fraction (0.79).
 Is there a way in MET to change this or I have to do it from UPP?

Agustín García-Reynoso       http://www.atmosfera.unam.mx/fqa
Centro de Ciencias de la Atmosfera  http://www.atmosfera.unam.mx
52-55-56 22 43 96
Universidad Nacional Autonoma de Mexico  52-55-56 16 07 89 (fax)
Circuito Exterior s/n Mexico DF 04510



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  Complete Ticket History
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Subject: RH values in pointstat
From: John Halley Gotway
Time: Thu Feb 07 17:26:28 2019

Agustin,

I see you have an issue with units when comparing RH between UPP
output and
point observations.  Good news, this is easily fixed in the MET
configuration files.

You can either divide the forecast values by 100 or multiply the
observation values by 100 to make the numbers comparable.  You do this
by
defining a “convert” function.  For example, let’s divide the forecast
by
100 in the config file like this:

name = “RH”;
level = “Z2”;
convert(x) = x / 100;

Please let me know if you run into more issues.

Thanks
John Halley Gotway

On Thu, Feb 7, 2019 at 9:21 AM Jose Agustín García Reynoso via RT <
met_help at ucar.edu> wrote:

>
> Thu Feb 07 09:21:24 2019: Request 88815 was acted upon.
> Transaction: Ticket created by agustin at atmosfera.unam.mx
>        Queue: met_help
>      Subject: RH values in pointstat
>        Owner: Nobody
>   Requestors: agustin at atmosfera.unam.mx
>       Status: new
>  Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=88815 >
>
>
> Hello
>
> I am using the prepbufr data from ucar.edu in netcdf format and by
> applying the UPP to the WRF. The issue is from UCAR the RH is in %
(say
> 80%) but from the UPP I get in fraction (0.79).
>  Is there a way in MET to change this or I have to do it from UPP?
>
> Agustín García-Reynoso       http://www.atmosfera.unam.mx/fqa
> Centro de Ciencias de la Atmosfera  http://www.atmosfera.unam.mx
> 52-55-56 22 43 96
> Universidad Nacional Autonoma de Mexico  52-55-56 16 07 89 (fax)
> Circuito Exterior s/n Mexico DF 04510
>
>
>

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Subject: Re: [rt.rap.ucar.edu #88815] RH values in pointstat
From: Jose Agustín García Reynoso
Time: Fri Feb 08 10:53:44 2019

John

Thanks for the info, now it is working fine.

Sincerely


> El 07/02/2019, a las 18:26, John Halley Gotway via RT
<met_help at ucar.edu> escribió:
>
> Agustin,
>
> I see you have an issue with units when comparing RH between UPP
output and
> point observations.  Good news, this is easily fixed in the MET
> configuration files.
>
> You can either divide the forecast values by 100 or multiply the
> observation values by 100 to make the numbers comparable.  You do
this by
> defining a “convert” function.  For example, let’s divide the
forecast by
> 100 in the config file like this:
>
> name = “RH”;
> level = “Z2”;
> convert(x) = x / 100;
>
> Please let me know if you run into more issues.
>
> Thanks
> John Halley Gotway
>
> On Thu, Feb 7, 2019 at 9:21 AM Jose Agustín García Reynoso via RT <
> met_help at ucar.edu> wrote:
>
>>
>> Thu Feb 07 09:21:24 2019: Request 88815 was acted upon.
>> Transaction: Ticket created by agustin at atmosfera.unam.mx
>>       Queue: met_help
>>     Subject: RH values in pointstat
>>       Owner: Nobody
>>  Requestors: agustin at atmosfera.unam.mx
>>      Status: new
>> Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=88815 >
>>
>>
>> Hello
>>
>> I am using the prepbufr data from ucar.edu in netcdf format and by
>> applying the UPP to the WRF. The issue is from UCAR the RH is in %
(say
>> 80%) but from the UPP I get in fraction (0.79).
>> Is there a way in MET to change this or I have to do it from UPP?
>>
>> Agustín García-Reynoso       http://www.atmosfera.unam.mx/fqa
>> Centro de Ciencias de la Atmosfera  http://www.atmosfera.unam.mx
>> 52-55-56 22 43 96
>> Universidad Nacional Autonoma de Mexico  52-55-56 16 07 89 (fax)
>> Circuito Exterior s/n Mexico DF 04510
>>
>>
>>
>



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