[ncl-talk] Error when reading ICON data

[Michael Langguth]

Dear all,

since an amendment in Germany, the German Meteorological 
Service (DWD) provides free output data access of the 
global model ICON (see: 
https://opendata.dwd.de/weather/icon/global/grib/). The 
data is stored in grib2-files.
Unfortunately, NCL seems not be able to handle these 
grib2-files.
Every time, when I try to open the file using the 
addfile-function, NCL gives the following error message:

fatal:NclGRIB2: Deleting reference to parameter; unable to 
decode grid template 3.101

I'm using NCL-version 6.3.0 (on a Linux cluster with 
openSUSE 42.1), but I've already tested the latest version 
6.4.0, too (without success).
Is there any way to add the missing grid template and to 
fix the problem?

Example data can be generated by downloading and unpacking 
an arbitrary file from:
https://opendata.dwd.de/weather/icon/global/grib/t/

Thanks for your effort and best regards,
Michael Langguth