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• importing ensembles,
• importing grid data from separate layers (z-dimension)
• importing grid data that are distributed over the several files, e.g. all forecasts in one file, one file per forecast, et cetera.

For the users of 2016.02 users02 or higher 

Since Fews versions version 2016.02, 02  the new NetCdf version 4.6 is used to read grib2 files. There are two important points the users should be aware of :

• Grib2 parameter names

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• in 2016.02 (or higher) are different from those provided by 2016.01 (or lower)
• Grib2 ensemble members in 2016.02 (or higher) might be different from those provided by

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• 2016.01 (or lower)

Grib2 parameter names

When you install 2016.02 (or higher), then the grib2 IdMap files are no more valid, since the existing parameter names cannot be matched anymore with the parameter names provided by NetCdf 4.6

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<properties>
     <bool key="Use_Grib2_Parameter_Name" value="true"/>
</properties> 

Grib2 ensemble members

In Fews  2016.02 or higher the imported ensemble members correspond  with ensemble members coded in grib2.

In Fews 2016.01 or lower the imported ensemble members are always 0, 1, 2, 3,... since the ensemble members are assigned on a first-come, first-served basis .

It means for example,  that Fews 2016.01 imports ensemble members 0,1,2  when, in actual fact, the ensemble members coded in the grib2 are 4,5,6 

Fews 2016.02  assigns  4,5,6 to the ensemble members, so the same numbers as coded in the grib2.