Voici l'en-tête d'un fichier contenant la vitesse zonale :
netcdf U {
dimensions:
longitude = 360 ;
latitude = 179 ;
depth = 33 ;
variables:
float sea_water_x_velocity(depth, latitude, longitude) ;
sea_water_x_velocity:valid_min = -2.097091f ;
sea_water_x_velocity:valid_max = 1.307023f ;
sea_water_x_velocity:data_type = "float" ;
sea_water_x_velocity:standard_name = "sea_water_x_velocity" ;
sea_water_x_velocity:long_name = "Zonal Current" ;
sea_water_x_velocity:units = "m.s-1" ;
sea_water_x_velocity:axis = "XYZ" ;
sea_water_x_velocity:_FillValue = 9.999e+33f ;
float longitude(longitude) ;
longitude:data_type = "float" ;
longitude:standard_name = "longitude" ;
longitude:long_name = "longitude" ;
longitude:units = "degrees_east" ;
longitude:axis = "Y" ;
longitude:positive = "east" ;
longitude:valid_min = 0.f ;
longitude:valid_max = 359.f ;
longitude:missing_value = 9.e+19f ;
float latitude(latitude) ;
latitude:data_type = "float" ;
latitude:standard_name = "latitude" ;
latitude:long_name = "latitude" ;
latitude:units = "degrees_north" ;
latitude:axis = "X" ;
latitude:positive = "north" ;
latitude:valid_min = -89.f ;
latitude:valid_max = 90.f ;
latitude:missing_value = 9.e+19f ;
float depth(depth) ;
depth:data_type = "float" ;
depth:standard_name = "depth" ;
depth:long_name = "depth" ;
depth:units = "m" ;
depth:axis = "Z" ;
depth:positive = "down" ;
depth:valid_min = 0.f ;
depth:valid_max = 5500.f ;
depth:missing_value = 9.e+19f ;
// global attributes:
:title = "ENACT" ;
:conventions = "CF-1.0" ;
:institution = "CERFACS" ;
:model = "OPA" ;
:method = "3dvar" ;
:method_version = "OPA8-2_VAR2-2" ;
:references = "http://www.ecmwf.int/research/EU_projects/ENACT" ;
}