Ok it is no bug but if someone is using this then the resulting data file is'nt described by the standard rules of netCDF. Reimar
appendix B of netcdf manual shows the file format spec, which has: attr := name nc_type nelems [values] see http://www.unidata.ucar.edu/packages/netcdf/guidec/guidec-18.html#HEADING18-0
netcdfgroup
archives: