On Tue, 21 Jul 2009, Daniele Romagnoli wrote:
Hi lists (sorry for cross posting),
I have some GRIB data coming from the France, having center ID = 85, which
refers to the French Weather Service, as stated by Table 0 Part 1 available
at [1].
I have a sample data called EVAP_XXX.grib containing a parameter number 57,
center 85, table version 1.
Looking at the referred fws_2_v1 table (I'm using netcdf 4 with support to
Grib-60.jar containing the lookup tables), there isn't the definition for
such a parameter. However, I have found an EVAPORATION Parameter (EVP) within
nceptab_1 table. (Parameter number 57)
At this point I have a question:
Is the fws table complete or does it miss some parameter definitions?
Hiya Daniele,
It appears the fws_2_v1 table has some missing parameter definitions
especially parameter number 57, the one you noted. Do you have a contact
for the French Weather Service to see if there is a later version of the
French tables? I'll look at some of my resources to see what I can find
too.
Some data providers only create tables with parameters that are different then
the WMO tables, so they expect the final table to be used is the merger of the
two tables with their entries taking top priority. Since it's impossible
to know what WMO table they are merging, this isn't a solution.
If not, maybe the data produced has been created referring to a wrong
parameter table... could this be possible?
Which is your opinion?
Sure that's a possibility but not likely since it's French data. Like you
said, the WMO table does seem to have the correct description for
parameter 57.
Also, let's take this off-line to the groups. The preferred method of
support is through http://www.unidata.ucar.edu/support/
Thanks,
Robb...
Thank you very much for any suggestion.
Regards,
Daniele
[1]:http://www.wmo.ch/pages/prog/www/WDM/Guides/Guide-binary-2.html
--
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Eng. Daniele Romagnoli
Software Engineer
GeoSolutions S.A.S.
Via Carignoni 51
55041 Camaiore (LU)
Italy
phone: +39 0584983027
fax: +39 0584983027
mob: +39 328 0559267
http://www.geo-solutions.it
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Robb Kambic Unidata Program Center
Software Engineer III Univ. Corp for Atmospheric Research
rkambic@xxxxxxxxxxxxxxxx WWW: http://www.unidata.ucar.edu/
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