[Met_help] PB2NC config file

[John Halley Gotway]

Ruifang,

Sorry about that, I forgot the attachment.  It's attached now.

You're right that you could use a polyline to define the masking region for the observations you'd like to retain.  But to answer you question, does G181 = CAR.poly?  I'd say the answer is NO.

Look in the file "METv2.0/data/poly/ncep_vx_regions.pdf", at the region marked "CAR".  I'm sure that doesn't line up exactly with NCEP Grid 181, although I can't find a plot of Grid 181 right now.

You can do the masking with a grid or a polyline, whichever you prefer.

Thanks,
John

Ruifang Li wrote:
> John,
> Thanks for quick reply.
> One more question, If I define these variables in the config file
> 
> mask_grid=" "
> maks_poly="MET_BASE/data/poly/CAR.poly"
> 
> Is it as same as
> 
> mask_grid="G181 "
> maks_poly=" "
> 
> By the way, I could not see your attached file.
> 
> Thanks again,
> Ruifang
> 
> 
> On Tue, Jul 14, 2009 at 6:37 AM, John Halley Gotway <johnhg at rap.ucar.edu>wrote:
> 
>> Hello,
>>
>> You raise a good point.  Here's the webpage from which we originally
>> extracted the grid definitions:
>> http://www.nco.ncep.noaa.gov/pmb/docs/on388/tableb.html
>>
>> I see that the information on there was updated on 9/15/2008, and that the
>> changes are listed in red, including the addition of grid #181.  This will
>> require some code changes to grab all of these
>> updated grid definitions.  In the meantime, I've modified the file
>> "METv2.0/lib/vx_data_grids/grid_defs.f" to add NCEP Grid 181 to the list of
>> definitions.  Please try replacing your original version
>> of the file with the attached one, and then recompile MET being sure to do
>> a "make clean" first.  Please let me know if you have any troubles using
>> grid #181 after recompiling.
>>
>> When I get a chance sometime over the next month, I'll update that file
>> "METv2.0/lib/vx_data_grids/grid_defs.f" with all of the changes and post it
>> to the MET website.
>>
>> Thanks for raising this issue!
>>
>> John Halley Gotway
>> johnhg at ucar.edu
>>
>> Ruifang Li wrote:
>>> Hi, John,
>>> I have a question about  variable mask_grid = "G212" in the default
>> config
>>> file of PB2NC. I tried to use mask_grid = "G181"
>>> for Caribean domain and it says:
>>> ERROR: process_config_file() -> the mask_grid requested "G181" is not
>>> defined.
>>>
>>> But G212 does work.
>>>
>>> How to use mask_grid = "G181"
>>>
>>> Thanks,
>>>
>>>
>>> ------------------------------------------------------------------------
>>>
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> 
> 
> 
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