Sorry, I just cannot duplicate this. I used the branch v4.5.0-release-branch. The exact commands I executed: ./nccopy 'http://www.esrl.noaa.gov/psd/thredds/dodsC/Datasets/ncep.reanalysis2/pressure/air.2006.nc?air[63:63][0][0:72 [0:143],time[63:63],level[0],lat[0:72],lon[0:143]' air.nc ./ncdump -h air.nc The result of the ncdump is attached. As you can see, air:units is defined. Not sure how to proceed. =Dennis Heimbigner Unidata Ticket Details =================== Ticket ID: CCI-504267 Department: Support netCDF Priority: Normal Status: Open =================== NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.
Attachment:
air.ncdump
Description: Binary data