CDO

Hi all, I have been trying to combine multiple netcdf files into a single netcdf file, in order for further processing. The files have same variables, just separated based on times.

code:cdo cat pr_wtr.*.nc pr_wtr1980-2017.nc

error:
cdo cat (Warning): Input streams have different parameters!
cdo cat (Abort): Grid size of the input parameters do not match!

something that maybe useful:
File format: netCDF
-38 : Institut Source Ttype Levels Num Gridsize Num Dtype : Parameter name
1 : unknown unknown instant 1 1 1 1 I16 : head
2 : unknown unknown instant 1 1 10512 2 I16 : pr_wtr
Grid coordinates :
1 : generic > size : dim = 1 nx = 0 ny = 0
2 : lonlat > size : dim = 10512 nx = 144 ny = 73
lon : first = 0 last = 357.5 inc = 2.5 degrees_east circular
lat : first = 90 last = -90 inc = -2.5 degrees_north
Vertical coordinates :
1 : surface : 0
Time coordinate : 365 steps
RefTime = 0001-01-01 00:00:00 Units = days Calendar = standard

File format: netCDF
   -37 : Institut Source   Ttype    Levels Num  Gridsize Num Dtype : Parameter name
     1 : unknown  unknown  instant       1   1         1   1  I16  : head          
     2 : unknown  unknown  instant       1   1     10512   2  I16  : pr_wtr        
   Grid coordinates :
     1 : generic      > size      : dim = 1  nx = 0  ny = 0
     2 : lonlat       > size      : dim = 10512  nx = 144  ny = 73
                        lon       : first = 0  last = 357.5  inc = 2.5  degrees_east  circular
                        lat       : first = 90  last = -90  inc = -2.5  degrees_north
   Vertical coordinates :
     1 : surface                  : 0 
   Time coordinate :  366 steps
     RefTime =  0001-01-01 00:00:00  Units = days  Calendar = standard

this is the result of two different nc file