Example 6 as CDL file

[nmassey001]

netcdf {

  // Example 6
  // An aggregation data variable for a collection of discrete sampling geometry
  // timeseries features that have been compressed by use of a contiguous ragged
  // array. The three timeseries of air temperature are each from different
  // geographical locations and comprise four, five, and six observations
  // respectively, giving a total of fifteen observations. The timeseries from
  // each location is stored in a separate external file.

  dimensions:
    // Aggregated dimensions
    station = 3 ;
    obs = 15 ;
    // Fragment dimensions
    f_station = 3 ;
    // Extra dimensions
    i = 1 ;
    j = 3 ;
  variables:
    // Data variable
    float temp(obs) ;
    temp:standard_name = "air_temperature" ;
    temp:units = "Celsius" ;
    temp:coordinates = "time lat lon alt station_name" ;
    temp:aggregated_dimensions = "obs" ;
    temp:aggregated_data = "location: aggregation_location
                            file: aggregation_file
                            format: aggregation_format
                            address: aggregation_address_temp" ;
    // Coordinate variables
    float time ;
    time:standard_name = "time" ;
    time:long_name = "time of measurement" ;
    time:units = "days since 1970-01-01" ;
    temp:aggregated_dimensions = "obs" ;
    temp:aggregated_data = "location: aggregation_location
                            file: aggregation_file
                            format: aggregation_format
                            address: aggregation_address_time" ;
    float lon(station) ;
    lon:standard_name = "longitude";
    lon:long_name = "station longitude";
    lon:units = "degrees_east";
    temp:aggregated_dimensions = "obs" ;
    temp:aggregated_data = "location: aggregation_location_latlon
                            file: aggregation_file
                            format: aggregation_format
                            address: aggregation_address_lon" ;
    float lat(station) ;
    lat:standard_name = "latitude";
    lat:long_name = "station latitude" ;
    lat:units = "degrees_north" ;
    temp:aggregated_dimensions = "obs" ;
    temp:aggregated_data = "location: aggregation_location_latlon
                            file: aggregation_file
                            format: aggregation_format
                            address: aggregation_address_lat" ;
    // Compression encoding variable
    int row_size(station) ;
    row_size:long_name = "number of observations per station" ;
    row_size:sample_dimension = "obs" ;
    // Aggregation definition variables
    int aggregation_location(i, j) ;
    int aggregation_location_latlon(i, j) ;
    string aggregation_file(f_station) ;
    string aggregation_format ;
    string aggregation_address_temp(f_station) ;
    string aggregation_address_time(f_station) ;
    string aggregation_address_lat(f_station) ;
    string aggregation_address_lon(f_station) ;

  // global attributes:
    :Conventions = "CF-1.9 CFA-0.6" ;
    :featureType = "timeSeries";
  data:
    temp = _ ;
    time = _ ;
    row_size = 4, 5, 6 ;
    aggregation_location = 3, 4, 5 ;
    aggregation_location_latlon = 1, 1, 1 ;
    aggregation_file = "Harwell.nc", "Abingdon.nc", "Lambourne.nc" ;
    aggregation_format = "nc" ;
    aggregation_address_temp = "tas", "tas", "tas" ;
    aggregation_address_time = "time", "time", "time" ;
    aggregation_address_lat = "lat", "lat", "lat" ;
    aggregation_address_lon = "lon", "lon", "lon" ;
}

[nmassey001]

There are errors in this file in the attributes of time, lon and lat