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Hi Uli, > Package Version: 4.1.1 > Operating System: Linux > Hardware: > Description of problem: Dear unidata helper, > > i'm struggling: > % NCDF_ATTRENAME: Attribute rename failed. (NC_ERROR=-59) > which in this case is support to fill the attribute with: > "gapfilled VPDday (see ""_f"" description in > http://www.bgc-jena.mpg.de/~MDIwork/eddyproc/output.php)" 102 > > can you tell me which characters are not allowed for use in variable and > attribute names and content. Any characters are allowed in attribute content, if the attribute is of type array of char, or of type string in the case of netCDF-4. See name rules for netCDF here: http://www.unidata.ucar.edu/software/netcdf/docs/object_name.html For attribute names, it depends on how you intend to use the data. The netCDF library permits any characters except "/" in attribute names. However, if the netCDF data is supposed to be compliant with some set of conventions, such as the Climate and Forecast (CF) metadata conventions, then the allowable names are more restricted. See for example: http://cf-pcmdi.llnl.gov/documents/cf-conventions/1.6/ch02s03.html Other software may have different restrictions. For example, you are using IDL, and it may have restrictions on names required by IDL syntax rules. --Russ Russ Rew UCAR Unidata Program address@hidden http://www.unidata.ucar.edu Ticket Details =================== Ticket ID: FAU-694703 Department: Support netCDF Priority: Normal Status: Closed