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Greetings Cosmin,So sorry for the delay - this may be a bug in our Gaussian grid code. We are going to have a meeting today, and I'll find out more details then and let you know.
Again, apologies for the delay, Sean On 4/24/13 1:17 AM, Cosmin Marginean wrote:
Hi Sean, Are there any updates on this? Anything else we need to provide? Cheers CosOn Tue, Apr 16, 2013 at 1:10 PM, Cosmin Marginean <cosminaru@xxxxxxxxx <mailto:cosminaru@xxxxxxxxx>> wrote:Hi Sean, I've chased this but we've been told that this information is available here: http://www.ecmwf.int/publications/manuals/grib_api/ Is this of any use? Or can you elaborate more on what exactly is needed? Cheers, Cos On 8 Apr 2013, at 16:45, Cosmin Marginean <cosminaru@xxxxxxxxx <mailto:cosminaru@xxxxxxxxx>> wrote:Thanks Sean, I am chasing this and will get back to you as soon as I have more. Thanks Cos On 8 Apr 2013, at 16:38, Sean Arms <sarms@xxxxxxxxxxxxxxxx <mailto:sarms@xxxxxxxxxxxxxxxx>> wrote:Hi Cos, Unfortunately, this won't help much. With GRIB, we really need the exact table used to create the file in order to read it with any level of confidence. netCDF-Java relies on these tables in order to be as generic as possible; the wgrib2 utility has some "fixes", at the code level, to explicitly handle corner cases. Cheers, Sean On 4/8/13 3:46 AM, Cosmin Marginean wrote:Hi Sean, We are currently chasing this. In the mean time, is this something that would help? http://www.ecmwf.int/services/archive/d/table/grib_table_2_versions/ Cheers Cos On 5 Apr 2013, at 20:16, Sean Arms <sarms@xxxxxxxxxxxxxxxx <mailto:sarms@xxxxxxxxxxxxxxxx>> wrote:Greetings Cosmin, It looks like there is a grib table problem. It's possible that ECMWF used a grib table that overwrote some of the standard WMO table entries and thus we have issues decoding the grib file. Would you happen to have the grib2 table that corresponds to this data file, or would you know whom to contact to get that table? Cheers, Sean On 4/5/13 12:34 PM, Sean Arms wrote:Greetings Cosmin, Yes, I have the file now. Let me do some digging and I'll let you know what I find. Cheers, Sean On 4/5/13 2:01 AM, Cosmin Marginean wrote:Hi Sean, Just wanted to confirm that you got the file? Please let me know if there is anything else that I can help with. Cheers, Cosmin On 3 Apr 2013, at 16:37, Sean Arms <sarms@xxxxxxxxxxxxxxxx <mailto:sarms@xxxxxxxxxxxxxxxx>> wrote:Greetings Cosmin, Would it be possible to get a sample grib file for us to work with here at Unidata? If so, please upload an example here: motherlode.ucar.edu/repository/alias/netcdfuploads <http://motherlode.ucar.edu/repository/alias/netcdfuploads> Thanks! Sean On 4/3/13 7:26 AM, Cosmin Marginean wrote:Hi Sean, Yes, sorry, forgot to mention that - we are indeed using 4.3.16 Cheers CosGreetings Cosmin, I just want to make sure you are trying this using the latest version of netCDF-Java, which is 4.3.16: http://www.unidata.ucar.edu/blogs/news/entry/netcdf_java_library_and_tds1 Thanks! Sean On 4/3/13 6:23 AM, Cosmin Marginean wrote:Hello, We are working on reading some of the ECMWF's Super Hi Res GRIB files, delivered in GRIB2 format, using a Gaussian grid. There are some situations where we cannot read some of these files since the code crashes as soon as we try to open the dataset: NetcdfDataset dataset = NetcdfDataset.openDataset(filePath); We are currently not sure what causes this, since using other tools (wgrib2) we can access this data. However, using the NetCDF Java library we get this type of exception as soon as we open the file: java.lang.IllegalArgumentException: Dimension length =-9999 must be > 0 We'd like to know if you happened to run into this or if you know what might cause it. Thank you in advance, Cosmin _______________________________________________ netcdf-java mailing list netcdf-java@xxxxxxxxxxxxxxxx <mailto:netcdf-java@xxxxxxxxxxxxxxxx>For list information or to unsubscribe, visit:http://www.unidata.ucar.edu/mailing_lists/_______________________________________________ netcdf-java mailing list netcdf-java@xxxxxxxxxxxxxxxx <mailto:netcdf-java@xxxxxxxxxxxxxxxx> For list information or to unsubscribe, visit:http://www.unidata.ucar.edu/mailing_lists/_______________________________________________ netcdf-java mailing list netcdf-java@xxxxxxxxxxxxxxxx <mailto:netcdf-java@xxxxxxxxxxxxxxxx> For list information or to unsubscribe, visit:http://www.unidata.ucar.edu/mailing_lists/_______________________________________________ netcdf-java mailing list netcdf-java@xxxxxxxxxxxxxxxx <mailto:netcdf-java@xxxxxxxxxxxxxxxx>For list information or to unsubscribe, visit:http://www.unidata.ucar.edu/mailing_lists/_______________________________________________ netcdf-java mailing list netcdf-java@xxxxxxxxxxxxxxxx <mailto:netcdf-java@xxxxxxxxxxxxxxxx> For list information or to unsubscribe, visit:http://www.unidata.ucar.edu/mailing_lists/_______________________________________________ netcdf-java mailing list netcdf-java@xxxxxxxxxxxxxxxx <mailto:netcdf-java@xxxxxxxxxxxxxxxx> For list information or to unsubscribe, visit:http://www.unidata.ucar.edu/mailing_lists/-- Cosmin Marginean
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