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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 thetwo 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 -- ------------------------------------------------------- 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 -------------------------------------------------------
=============================================================================== 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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