[Met_help] [rt.rap.ucar.edu #95037] History for 2m AGL temperature

[John Halley Gotway via RT]

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  Initial Request
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Hi John,

When we verify T2 simulations against observations, I wonder whether 
terrain adjustment is conducted in MET? For example, if there is large 
difference between the model topography height and the station 
elevations,  does MET consider its influence on T2? Thanks!

Stay safe and healthy!

Ming



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  Complete Ticket History
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Subject: 2m AGL temperature
From: John Halley Gotway
Time: Fri Apr 24 16:52:03 2020

Ming,

That's a great question.  In met-9.0, we did add some logic to the
Point-Stat tool to use topography information.  However, we stopped
short
of modifying any values.  Instead, the config options let you decide
how
close the observation station's elevation must be to the model
topography
at that location either for the observation point to be used at all or
when
determining which forecast grid points should be used when
interpolating to
that point.

Please take a look in the default Point-Stat config file at the
entries for
land_mask and topo_mask:
https://github.com/NCAR/MET/blob/master_v9.0/met/data/config/PointStatConfig_default

And search the README file for a longer description of those entries:
https://github.com/NCAR/MET/blob/master_v9.0/met/data/config/README

Please take a look at that and let me know if you have any more
questions
about their functionality.

Thanks,
John Halley Gotway

On Fri, Apr 24, 2020 at 11:40 AM chenming at ucar.edu via RT
<met_help at ucar.edu>
wrote:

>
> Fri Apr 24 11:40:13 2020: Request 95037 was acted upon.
> Transaction: Ticket created by chenming at ucar.edu
>        Queue: met_help
>      Subject: 2m AGL temperature
>        Owner: Nobody
>   Requestors: chenming at ucar.edu
>       Status: new
>  Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=95037 >
>
>
> Hi John,
>
> When we verify T2 simulations against observations, I wonder whether
> terrain adjustment is conducted in MET? For example, if there is
large
> difference between the model topography height and the station
> elevations,  does MET consider its influence on T2? Thanks!
>
> Stay safe and healthy!
>
> Ming
>
>
>

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