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Hi Steve, It's possible you have the dimensions reversed in your start and count arrays. In Fortran, the first dimension varies most quickly, but in C and the CDL output by ncdump, the last dimension varies most quickly. Without seeing the output from ncdump -h, I can't tell for sure, but if the time dimension is varying most slowly in the netCDF file (that is all values for a time are stored together) and you are trying to get all the values for one time, then you should use start = (/ 1 , 1 , 1 , 1 /) count = (/ 1 , z , x , y /) --Russ Russ Rew UCAR Unidata Program address@hidden http://www.unidata.ucar.edu Ticket Details =================== Ticket ID: GBB-400841 Department: Support netCDF Priority: Normal Status: Closed