Hi Ruotong: 1) Can you send me a sample file? 2) What version of netCDF-Java are you using? John > Hello, > > Now I have a problem of extracting the APCP(total precipitation) forecastTime > when decoding the Japan Model Grib2 file, the file's forecast time is 24 > hours, and compresses all the elements(HGT, TMP, APCP etc ) in one grib2 > file. My problem is when I use the NetCDF Java Library > Grib2Pds.getForecastTime() method, the result of APCP is 0(It should be 24), > but other elements are all 24. > > I tryed other decoding tools like wgrib2, the fact is the APCP PDS > forecastTime in the Grib2 file is 0 indeed, but there is another parameter > called "stepRange" that equals to "0-24", but I can't find other method in > the NetCDF Java to get the forecastTime in terms of "stepRange". > > If you are familar with Grib2 format, would you show me when > Grib2Pds.getForecastTime == 0, how to get the accumulation elements' real > forecast time(like APCP, ACPCP) via the NetCDF Java API? > > > > Regards, > > Ruotong Wang > > National Meteorological Center > Ticket Details =================== Ticket ID: YKI-311528 Department: Support netCDF Java Priority: High Status: Open
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