You downloaded data from the ECMWF data server or another ECMWF repository in NetCDF format.
Then you are trying to read the data with the NCAR Command Language (NCL) , GrADS or Ferret, but get an error message, for example for NCL:
ncl 0> f = addfile("ECMWF-data.nc","r")(0) longitude (1) latitude (2) time (3) p83.162 (4) p86.162 q ncl 3> x = f->p83.162 fatal:syntax error: line 3 before or near .162 x = f->p83.162 -------------^ ncl 4> x = f->"p83.162" fatal:syntax error: line 4 before or near > x = f-> ------^ |
NCL, GrADS and Ferret do not support dots in variable names.
Enclose the variable name in double quotes and Dollar signs:
ncl 0> f = addfile("ECMWF-data.nc","r")ncl 1> print (getfilevarnames (f)) ncl 2> x = f->$"p83.162"$ ncl 3> print (x) Variable: x Type: short Total Size: 7172160 bytes 3586080 values Number of Dimensions: 3 Dimensions and sizes: [time | 31] x [latitude | 241] x [longitude | 480] Coordinates: time: [1024872..1025592] latitude: [90..-90] longitude: [ 0..359.25] Number Of Attributes: 6 scale_factor : 0.6170104064936749 add_offset : -3072.290927078247 _FillValue : -32767 missing_value : -32767 units : W m**-2 long_name : Vertical integral of divergence of thermal energy flux |
Rename the variable so the name contains only allowed character: