Re: [thredds] aggregating GFS data, problem with accumulated

Dear John,

attached to this email is a complete ncml file that we place next to
the data files.  The data files themselves are too big to upload, but
they are standard gfs grib2 files, you can find them at

ftp://ftpprd.ncep.noaa.gov/pub/data/nccf/com/gfs/prod/gfs.2013060600

(that's for this morning, modify the date as needed)
The files are the grib2 files at 0.5 degree, e.g.  gfs.t00z.pgrb2bf30
(50 mb each).

The previous snippet of ncml I sent should also work, you'll have to modify
the paths to the correct folder of course.  A variable to check is for
example 

Total_precipitation_surface_3_Hour_Accumulation

These should have multiple time steps, but I get only 1 time step (the
first, for the +03 forecast). The +00 analysis doesn't contain the
precipitation fields.  Any variable with an accumulation or averaging
interval exhibits the problem.


Kind regards,
     Hein Zelle


-- 

Dr. Hein Zelle
Senior consultant meteorology & oceanography
BMT ARGOSS

Tel:        +31 (0)527-242299
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<netcdf xmlns="http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2";>
  <aggregation dimName="time" type="joinExisting">
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f00" coordValue="0"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f03" coordValue="3"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f06" coordValue="6"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f09" coordValue="9"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f12" coordValue="12"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f15" coordValue="15"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f18" coordValue="18"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f21" coordValue="21"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f24" coordValue="24"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f27" coordValue="27"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f30" coordValue="30"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f33" coordValue="33"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f36" coordValue="36"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f39" coordValue="39"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f42" coordValue="42"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f45" coordValue="45"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f48" coordValue="48"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f51" coordValue="51"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f54" coordValue="54"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f57" coordValue="57"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f60" coordValue="60"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f63" coordValue="63"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f66" coordValue="66"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f69" coordValue="69"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f72" coordValue="72"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f75" coordValue="75"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f78" coordValue="78"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f81" coordValue="81"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f84" coordValue="84"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f87" coordValue="87"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f90" coordValue="90"/>
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    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f96" coordValue="96"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f99" coordValue="99"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f102" coordValue="102"/>
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    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f111" coordValue="111"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f114" coordValue="114"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f117" coordValue="117"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f120" coordValue="120"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f123" coordValue="123"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f126" coordValue="126"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f129" coordValue="129"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f132" coordValue="132"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f135" coordValue="135"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f138" coordValue="138"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f141" coordValue="141"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f144" coordValue="144"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f147" coordValue="147"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f150" coordValue="150"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f153" coordValue="153"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f156" coordValue="156"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f159" coordValue="159"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f162" coordValue="162"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f165" coordValue="165"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f168" coordValue="168"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f171" coordValue="171"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f174" coordValue="174"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f177" coordValue="177"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f180" coordValue="180"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f183" coordValue="183"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f186" coordValue="186"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f189" coordValue="189"/>
    <netcdf location="gfs.2013060600/gfs.t00z.pgrb2f192" coordValue="192"/>
  </aggregation>
</netcdf>
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