Attributes { String Last-modified "Mon, 27 Apr 2026 08:36:03 -0000"; NC_GLOBAL { String institution "Met Norway, Henrik Mohns plass 1, 0313 Oslo, Norway"; String references "https://marine.copernicus.eu/"; String source "NERSC-HYCOM model fields"; String contact ""; String credit "E.U. Copernicus Marine Service Information (CMEMS)"; String conventions "CF-1.4"; String field_date "2026-04-26T00:00:00Z"; String bulletin_date "2026-04-26"; String title "Arctic Ocean Physics Analysis and Forecast, 6.25 km 1-hourly frequency"; String bulletin_type "Forecast"; String Forecast_range "10 days"; String epoch "2026-04-26T00:00:00Z"; } time { Float64 _FillValue nan; String calendar "proleptic_gregorian"; String cell_methods "time: mean"; String long_name "time"; String standard_name "time"; String units "seconds since 2026-04-26"; } y { Float32 _FillValue nan; String axis "Y"; String standard_name "projection_y_coordinate"; String units "m"; } x { Float32 _FillValue nan; String axis "X"; String standard_name "projection_x_coordinate"; String units "m"; } stereographic { Float64 earth_radius 6.37827e+06; Float64 false_easting 0; Float64 false_northing 0; String grid_mapping_name "polar_stereographic"; Float64 latitude_of_projection_origin 90; Float64 longitude_of_projection_origin -45; String proj4 "+proj=stere +lon_0=-45 +lat_0=90 +k=1 +R=6378273 +no_defs"; Float64 scale_factor_at_projection_origin 1; Float64 straight_vertical_longitude_from_pole -45; } sss { Int16 _FillValue -32768; Float64 add_offset 17; String coordinates "longitude latitude"; String long_name "Sea surface salinity"; Float64 scale_factor 0.01; String standard_name "sea_surface_salinity"; String units "1e-3"; } sst { Int16 _FillValue -32768; Float64 add_offset 10; String coordinates "longitude latitude"; String long_name "Sea surface temperature"; Float64 scale_factor 0.002; String standard_name "sea_surface_temperature"; String units "degree_C"; } longitude { Float32 _FillValue nan; String standard_name "longitude"; String units "degrees_east"; } latitude { Float32 _FillValue nan; String standard_name "latitude"; String units "degrees_north"; } u_velocity { Int16 _FillValue -32768; Float64 add_offset 0; String coordinates "latitude longitude"; String grid_mapping "stereographic"; String long_name "Eastward sea water velocity"; Float64 scale_factor 0.001; String standard_name "eastward_sea_water_velocity"; String units "knots"; } v_velocity { Int16 _FillValue -32768; Float64 add_offset 0; String coordinates "latitude longitude"; String grid_mapping "stereographic"; String long_name "Northward sea water velocity"; Float64 scale_factor 0.001; String standard_name "northward_sea_water_velocity"; String units "knots"; } u_velocity_v_velocity { Int16 _FillValue -32768; Float64 add_offset 4; String coordinates "latitude longitude"; String grid_mapping "stereographic"; String long_name "Sea water speed"; Float64 scale_factor 0.001; String standard_name "sea_water_speed"; String units "knots"; } }