cdo或nco如何删除netcdf变量和维度

google3000

nc文件如下所示，想删掉变量time_bnds及维度bnds,方便文件合并，cdo或nco如何删除
dimensions:
    time = UNLIMITED ; // (283 currently)
    bnds = 2 ;
    lon = 144 ;
    lat = 73 ;
variables:
    float time(time) ;
        time:standard_name = "time" ;
        time:long_name = "reference time" ;
        time:bounds = "time_bnds" ;
        time:units = "days since 1970-01-01 00:00:00" ;
        time:calendar = "standard" ;
        time:axis = "T" ;
    double time_bnds(time, bnds) ;
    float lon(lon) ;
        lon:standard_name = "longitude" ;
        lon:long_name = "Longitude" ;
        lon:units = "degrees_east" ;
        lon:axis = "X" ;
    float lat(lat) ;
        lat:standard_name = "latitude" ;
        lat:long_name = "Latitude" ;
        lat:units = "degrees_north" ;
        lat:axis = "Y" ;
    float olr(time, lat, lon) ;
        olr:standard_name = "toa_outgoing_longwave_flux" ;
        olr:long_name = "NOAA Climate Data Record of Daily Mean Upward Longwave Flux at Top of the Atmosphere" ;
        olr:units = "W m-2" ;
        olr:_FillValue = 0.f ;
        olr:missing_value = 0.f ;
        olr:cell_methods = "time: mean area: mean" ;

google3000

使用cdo delete,name=time_bnds in.nc out.nc 提示Variable name >time_bnds< not found!

google3000

ncks -x -v time_bnds in.nc out.nc也不起作用

dreamerLEE

可以用xarray读取nc里bnds
维度2个里的一个，再保存为nc，就删除了

google3000

dreamerLEE 发表于 2023-10-25 20:16
可以用xarray读取nc里bnds
维度2个里的一个，再保存为nc，就删除了

谢谢，这是一个办法，还是想试试cdo或nco

RossilLj

您好，请问找到cdo删除变量的方法了吗

chch123456

ncks -C -O -x -v lat_bnds,lon_bnds,time_bnds file_with_bnds.nc outfile.nc