[Met_help] [rt.rap.ucar.edu #56691] History for rotated LatLon grid with Arakava C staggering + MET?

[Paul Oldenburg via RT]

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  Initial Request
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Dear MET help,

My data is on a rotated LatLon grid with Arakawa C staggering.
All that interests me is total  precipitation. So I think the staggering 
should not be a problem, as it does not
concern precipitation. My question is, do I need to regrid the data to 
an unrotated grid before applying MET?
Will the results of the calculation be compromised if I directly use 
this rotated grid?

Best regards,

-- 
Dr. Martin Ivanov
Eberhard-Karls-Universität Tübingen
Mathematisch-Naturwissenschaftliche Fakultät
Fachbereich Geowissenschaften
Water&  Earth System Science (WESS)
Hölderlinstraße 12, 72074 Tübingen, Deutschland
Tel. +4970712975023



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  Complete Ticket History
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Subject: Re: [rt.rap.ucar.edu #56691] rotated LatLon grid with Arakava C staggering + MET?
From: Paul Oldenburg
Time: Thu May 31 08:48:27 2012

Martin,

I'm afraid that you will have to regrid your data to a non-staggered
non-rotated grid in order to use MET.  The good
news is that you can choose the projection you would like to regrid
to: LatLon, Mercator, Lambert Conformal or Polar
Stereographic.  If your model data is the NetCDF output of WRF, we
recommend that you use the WRF Unified Post Processor
(UPP - http://www.dtcenter.org/wrf-
nmm/users/overview/upp_overview.php) to post-process your data and
then use copygb to
regrid it to the desired projection.  If you have any questions about
this, please let me know.

Paul


On 05/31/2012 07:08 AM, Martin Ivanov via RT wrote:
>
> Thu May 31 07:08:24 2012: Request 56691 was acted upon.
> Transaction: Ticket created by martin.ivanov at ifg.uni-tuebingen.de
>         Queue: met_help
>       Subject: rotated LatLon grid with Arakava C staggering + MET?
>         Owner: Nobody
>    Requestors: martin.ivanov at ifg.uni-tuebingen.de
>        Status: new
>   Ticket<URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=56691>
>
>
> Dear MET help,
>
> My data is on a rotated LatLon grid with Arakawa C staggering.
> All that interests me is total  precipitation. So I think the
staggering
> should not be a problem, as it does not
> concern precipitation. My question is, do I need to regrid the data
to
> an unrotated grid before applying MET?
> Will the results of the calculation be compromised if I directly use
> this rotated grid?
>
> Best regards,
>


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