netcdf {
// Example 1
// An aggregated data variable whose aggregated data comprises two fragments.
// Each fragment spans half of the aggregated time dimension and the whole of
// the other three aggregated dimensions, and is stored in an external netCDF
// file in a variable called temp. Both fragment files have the same format,
// so the format variable can be stored as a scalar variable.
dimensions:
// Aggregated dimensions
time = 12 ;
level = 1 ;
latitude = 73 ;
longitude = 144 ;
// Fragment dimensions
f_time = 2 ;
f_level = 1 ;
f_latitude = 1 ;
f_longitude = 1 ;
// Extra dimensions
i = 4 ;
j = 2 ;
variables:
// Data variable
double temp ;
temp:standard_name = "air_temperature" ;
temp:units = "K" ;
temp:cell_methods = "time: mean" ;
temp:aggregated_dimensions = "time level latitude longitude" ;
temp:aggregated_data = "location: aggregation_location
file: aggregation_file
format: aggregation_format
address: aggregation_address" ;
// Coordinate variables
double time(time) ;
time:standard_name = "time" ;
time:units = "days since 2001-01-01" ;
double level(level) ;
level:standard_name = "height_above_mean_sea_level" ;
level:units = "m" ;
double latitude(latitude) ;
latitude:standard_name = "latitude" ;
latitude:units = "degrees_north" ;
double longitude(longitude) ;
longitude:standard_name = "longitude" ;
longitude:units = "degrees_east" ;
// Aggregation definition variables
int aggregation_location(i, j) ;
string aggregation_file(f_time, f_level, f_latitude, f_longitude) ;
string aggregation_format ;
string aggregation_address(f_time, f_level, f_latitude, f_longitude) ;
// global attributes:
:Conventions = "CF-1.9 CFA-0.6" ;
data:
temp = _ ;
time = 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 ;
aggregation_location = 6, 6,
1, _,
73, _,
144, _ ;
aggregation_file = "January-June.nc", "July-December.nc" ;
aggregation_format = "nc" ;
aggregation_address = "temp", "temp" ;
}
