CDO

Hello, Sir,

I'm try to manipulate files using this command:

cdo -mermean -zonmean -sellonlatbox,-180,180,-5,5 -sellevel,1000,2000,3000,5000,7000,10000 ua_Amon_CESM2-WACCM_historical_r1i1p1f1_gn_185001-201412.nc /disk_raid6/pub/xqb/11.SSW/CESM2-WACCM/QBOindex.WACCM.1979-2014.nc

The warning is appeared and the output file is 0k.

I have no idea how to fix this.

The structure of original files is like this (ncdump -h):

_netcdf ua_Amon_CESM2-WACCM_historical_r1i1p1f1_gn_185001-201412 {
dimensions:
lat = 192 ;
plev = 19 ;
nbnd = 2 ;
lon = 288 ;
time = UNLIMITED ; // (1980 currently)
variables:
float ua(time, plev, lat, lon) ;
ua:_FillValue = 1.e+20f ;
ua:cell_measures = "area: areacella" ;
ua:cell_methods = "time: mean" ;
ua:comment = "Zonal wind (positive in a eastward direction)." ;
ua:coordinates = "time plev lat lon" ;
ua:description = "Zonal wind (positive in a eastward direction)." ;
ua:frequency = "mon" ;
ua:id = "ua" ;
ua:long_name = "Eastward Wind" ;
ua:mipTable = "Amon" ;
ua:missing_value = 1.e+20 ;
ua:out_name = "ua" ;
ua:prov = "Amon ((isd.003))" ;
ua:realm = "atmos" ;
ua:standard_name = "eastward_wind" ;
ua:time = "time" ;
ua:time_label = "time-mean" ;
ua:time_title = "Temporal mean" ;
ua:title = "Eastward Wind" ;
ua:type = "real" ;
ua:units = "m s-1" ;
ua:variable_id = "ua" ;
double lat(lat) ;
lat:axis = "Y" ;
lat:bounds = "lat_bnds" ;
lat:standard_name = "latitude" ;
lat:title = "Latitude" ;
lat:type = "double" ;
lat:units = "degrees_north" ;
lat:valid_max = 90. ;
lat:valid_min = -90. ;
double lon(lon) ;
lon:axis = "X" ;
lon:bounds = "lon_bnds" ;
lon:standard_name = "longitude" ;
lon:title = "Longitude" ;
lon:type = "double" ;
lon:units = "degrees_east" ;
lon:valid_max = 360. ;
lon:valid_min = 0. ;
double plev(plev) ;
plev:axis = "Z" ;
plev:positive = "down" ;
plev:requested = "100000. 92500. 85000. 70000. 60000. 50000. 40000. 30000. 25000. 20000. 15000. 10000. 7000. 5000. 3000. 2000. 1000. 500. 100." ;
plev:standard_name = "air_pressure" ;
plev:title = "pressure" ;
plev:type = "double" ;
plev:units = "Pa" ;
double time(time) ;
time:axis = "T" ;
time:bounds = "time_bnds" ;
time:standard_name = "time" ;
time:title = "time" ;
time:type = "double" ;
time:units = "days since 0001-01-01 00:00:00" ;
time:calendar = "noleap" ;
double time_bnds(time, nbnd) ;
time_bnds:calendar = "noleap" ;
time_bnds:units = "days since 0001-01-01 00:00:00" ;
float lat_bnds(lat, nbnd) ;
lat_bnds:units = "degrees_north" ;
float lon_bnds(lon, nbnd) ;
lon_bnds:units = "degrees_east" ;

// global attributes:
:Conventions = "CF-1.7 CMIP-6.2" ;
:activity_id = "CMIP" ;
:case_id = "4" ;
:cesm_casename = "b.e21.BWHIST.f09_g17.CMIP6-historical-WACCM.001" ;
:contact = "cesm_cmip6@ucar.edu" ;
:creation_date = "2019-01-30T21:35:25Z" ;
:data_specs_version = "01.00.29" ;
:experiment = "all-forcing simulation of the recent past" ;
:experiment_id = "historical" ;
:external_variables = "areacella" ;
:forcing_index = 1LL ;
:frequency = "mon" ;
:further_info_url = "https://furtherinfo.es-doc.org/CMIP6.NCAR.CESM2-WACCM.historical.none.r1i1p1f1" ;
:grid = "native 0.9x1.25 finite volume grid (192x288 latxlon)" ;
:grid_label = "gn" ;
:initialization_index = 1LL ;
:institution = "National Center for Atmospheric Research, Climate and Global Dynamics Laboratory, 1850 Table Mesa Drive, Boulder, CO 80305, USA" ;
:institution_id = "NCAR" ;
:license = "CMIP6 model data produced by <The National Center for Atmospheric Research> is licensed under a Creative Commons Attribution-[]ShareAlike 4.0 International License (https://creativecommons.org/licenses/). Consult https://pcmdi.llnl.gov/CMIP6/TermsOfUse for terms of use governing CMIP6 output, including citation requirements and proper acknowledgment. Further information about this data, including some limitations, can be found via the further_info_url (recorded as a global attribute in this file)[]. The data producers and data providers make no warranty, either express or implied, including, but not limited to, warranties of merchantability and fitness for a particular purpose. All liabilities arising from the supply of the information (including any liability arising in negligence) are excluded to the fullest extent permitted by law." ;
:mip_era = "CMIP6" ;
:model_doi_url = "https://doi.org/10.5065/D67H1H0V" ;
:nominal_resolution = "100 km" ;
:parent_activity_id = "CMIP" ;
:parent_experiment_id = "piControl" ;
:parent_mip_era = "CMIP6" ;
:parent_source_id = "CESM2-WACCM" ;
:parent_time_units = "days since 0001-01-01 00:00:00" ;
:parent_variant_label = "r1i1p1f1" ;
:physics_index = 1LL ;
:product = "model-output" ;
:realization_index = 1LL ;
:realm = "atmos" ;
:source = "CESM2 (2017): atmosphere: CAM6 (0.9x1.25 finite volume grid; 288 x 192 longitude/latitude; 70 levels; top level 4.5e-6 mb); ocean: POP2 (320x384 longitude/latitude; 60 levels; top grid cell 0-10 m); sea_ice: CICE5.1 (same grid as ocean); land: CLM5 0.9x1.25 finite volume grid; 288 x 192 longitude/latitude; 70 levels; top level 4.5e-6 mb); aerosol: MAM4 (0.9x1.25 finite volume grid; 288 x 192 longitude/latitude; 70 levels; top level 4.5e-6 mb); atmosChem: WACCM (0.9x1.25 finite volume grid; 288 x 192 longitude/latitude; 70 levels; top level 4.5e-6 mb; landIce: CISM2.1; ocnBgchem: MARBL (320x384 longitude/latitude; 60 levels; top grid cell 0-10 m)" ;
:source_id = "CESM2-WACCM" ;
:source_type = "AOGCM BGC CHEM AER" ;
:sub_experiment = "none" ;
:sub_experiment_id = "none" ;
:table_id = "Amon" ;
:tracking_id = "hdl:21.14100/3b0967c3-3556-4af5-9159-dac001336d1e" ;
:variable_id = "ua" ;
:variant_info = "CMIP6 CESM2 hindcast (1850-2014) with high-top atmosphere (WACCM6) with interactive chemistry (TSMLT1), interactive land (CLM5), coupled ocean (POP2) with biogeochemistry (MARBL), interactive sea ice (CICE5.1), and non-evolving land ice (CISM2.1)" ;
:variant_label = "r1i1p1f1" ;
:branch_time_in_parent = 20075. ;
:branch_time_in_child = 674885. ;
:branch_method = "standard" ;
}_