The special attributes include:
| _ChunkSizes | a list of chunk sizes for each dimension of the variable |
| _DeflateLevel | an integer between 0 and 9 inclusive if compression was specified for the variable |
| _Endianness | either `little' or `big', depending on how the variable was stored when first written |
| _Fletcher32 | `true' if the checksum property was set for the variable |
| _Format | a global attribute specifying the netCDF format variant, one of `classic', `64-bit offset', `netCDF-4', or `netCDF-4 classic model' |
| _NoFill | `true' if the persistent NoFill property was set for the variable when it was defined |
| _Shuffle | `true' if use of the shuffle filter was specified for the variable |
| _Storage | `contiguous' or `chunked', depending on how the variable's data is stored |
$ ncdump -s -h mslp.nc
netcdf mslp {
dimensions:
lat = 6 ;
lon = 4 ;
time = UNLIMITED ; // (2 currently)
variables:
float lat(lat) ;
lat:units = "degrees_north" ;
float lon(lon) ;
lon:units = "degrees_east" ;
double time(time) ;
time:units = "seconds since 2009-01-01" ;
float pr(time, lat, lon) ;
pr:standard_name = "air_pressure_at_sea_level" ;
pr:units = "hPa" ;
// global attributes:
:title = "example for workshop" ;
:_Format = "classic" ;
}