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I’m having trouble creating a valid CDL (thus netCDF) for
the UKMET. Here’s my pqact.conf entry: HDS ^H..... EGRR ([0-3][0-9])([0-2][0-9])([0-5][0-9]) FILE /usr/local/models/(\1:yyyy)(\1:mm)\1\2_uk.grib When I run a simple gribtocdl 2007052212_ukmet.grb >
uk.cdl command I continually get this as my dimensions in the file: dimensions: record = UNLIMITED ; // (reference time, forecast
time) lat = 73 ; // latitude lon = -1 ; // longitude level = 12 ; // isobaric levels time_len = 21 ; // string length for datetime
strings valtime_offset = 13 ; // number of offset times nmodels = 4 ; // number of models ngrids = 9 ; // number of grids nav = 1 ; // for navigation nav_len = 100 ; // max string length for
navigation strings Notice lon=-1. Further down in the data section it tells me that: lon =-30.00 ; I believe lon should equal 144 but obviously something is
not working. We take this same data and run it through the gempak
decoders without a problem. Anyone have any ideas what is going on with the
gribtocdl program on this grib file? I’ve run lots of other model data
through the gribtocdl program and never had a problem such as this. Also, the java grib decoder has issues with this as well… [ldm@metbox4 ukmet]$ java -Xmx512m
ucar.nc2.iosp.grib.Grib2Netcdf 2007052212_ukmet.grb uk_test.nc Wed May 23 18:32:59 GMT 2007 ... Start of Grib2Netcdf read grib file=2007052212_ukmet.grb write to netCDF
file=uk_test.nc Using default table:resources/grib/tables/wmo_2_v3.tab
(74:-1:-1) Exception in thread "main"
java.lang.NullPointerException at
ucar.nc2.Variable.setDimensions(Variable.java:1132) at
ucar.nc2.NetcdfFileWriteable.addVariable(NetcdfFileWriteable.java:335) at ucar.nc2.FileWriter.writeToFile(FileWriter.java:158) at
ucar.nc2.FileWriter.writeToFile(FileWriter.java:65) at
ucar.nc2.iosp.grib.Grib2Netcdf.main(Grib2Netcdf.java:87) Thanks for any help on this one.. Charles |