Here is my file header:
netcdf 2000-01 {
dimensions:
time = UNLIMITED ; // (744 currently)
lon = 720 ;
lat = 360 ;
variables:
double time(time) ;
time:standard_name = "time" ;
time:long_name = "Time" ;
time:units = "hours since 0-1-1 00:00:00" ;
time:calendar = "365_day" ;
time:axis = "T" ;
double lon(lon) ;
lon:standard_name = "longitude" ;
lon:long_name = "Longitude" ;
lon:units = "degrees_east" ;
lon:axis = "X" ;
double lat(lat) ;
lat:standard_name = "latitude" ;
lat:long_name = "Latitude" ;
lat:units = "degrees_north" ;
lat:axis = "Y" ;
float Tair(time, lat, lon) ;
Tair:standard_name = "air_temperature" ;
Tair:long_name = "Near-Surface Air Temperature" ;
Tair:units = "K" ;
Tair:_FillValue = 1.e+20f ;
Tair:missing_value = 1.e+20f ;
float PSurf(time, lat, lon) ;
PSurf:standard_name = "surface_air_pressure" ;
PSurf:long_name = "Surface Air Pressure" ;
PSurf:units = "Pa" ;
PSurf:_FillValue = 1.e+20f ;
PSurf:missing_value = 1.e+20f ;
float Qair(time, lat, lon) ;
Qair:standard_name = "specific_humidity" ;
Qair:long_name = "Near-Surface Specific Humidity" ;
Qair:units = "kg kg-1" ;
Qair:_FillValue = 1.e+20f ;
Qair:missing_value = 1.e+20f ;
float LWdown(time, lat, lon) ;
LWdown:standard_name = "surface_downwelling_longwave_flux_in_air" ;
LWdown:long_name = "Surface Downwelling Longwave Radiation" ;
LWdown:units = "W m-2" ;
LWdown:_FillValue = 1.e+20f ;
LWdown:missing_value = 1.e+20f ;
float Wind(time, lat, lon) ;
Wind:standard_name = "wind_speed" ;
Wind:long_name = "Near-Surface Wind Speed" ;
Wind:units = "m s-1" ;
Wind:_FillValue = 1.e+20f ;
Wind:missing_value = 1.e+20f ;
// global attributes:
:CDI = "Climate Data Interface version 1.9.5 (
Overview - CDI - Project Management Service)" ;
:Conventions = "CF-1.7" ;
:history = "Sat Mar 28 07:12:56 2020: cdo setreftime,0000-01-01,0,1h -setcalendar,365_day n2000-01.nc mn2000-01.nc\n",
"Fri Mar 27 23:05:01 2020: cdo setreftime,0000-01-01,0,1h 2000-01.nc n2000-01.nc\n",
"Tue Mar 17 09:52:52 2020: cdo -P 10 merge Tair_WFDE5_CRU_200001_v1.0.nc PSurf_WFDE5_CRU_200001_v1.0.nc Qair_WFDE5_CRU_200001_v1.0.nc LWdown_WFDE5_CRU_200001_v1.0.nc Wind_WFDE5_CRU_200001_v1.0.nc TPQLW_WFDE5_CRU_200001_v1.0.nc" ;
:institution = "Copernicus Climate Change Service" ;
:title = "WATCH Forcing Data methodology applied to ERA5 data" ;
:contact = "
http://copernicus-support.ecmwf.int" ;
:summary = "ERA5 data regridded to half degree regular lat-lon; Genuine land points from CRU grid and ERA5 land-sea mask only; Tair elevation & bias-corrected using CRU TS4.03 mean monthly temperature and mean diurnal temperature range" ;
:comment = "Methodology implementation for ERA5 and dataset production by B-Open Solutions for the Copernicus Climate Change Service in the context of contract C3S_25c" ;
:reference = "Weedon et al. 2014 Water Resources Res. 50, 7505-7514, doi:10.1002/2014WR015638; Harris et al. 2014 Int. J. Climatol. 34, 623-642, doi:10.1002/joc.3711; Cucchi et al. 2020 (in preparation)" ;
:licence = "The dataset is distributed under the Licence to Use Copernicus Products. The corrections applied are based upon CRU TS4.03, distributed under the Open Database License (ODbL)" ;
:cdo_openmp_thread_number = 10 ;
:CDO = "Climate Data Operators version 1.9.5 (
Overview - CDO - Project Management Service)" ;