Attributes {
    trajectory {
        String long_name "Unique identifier for each feature instance";
        String cf_role "trajectory_id";
    }
    time {
        String long_name "epoch time";
        String standard_name "time";
        String units "seconds since 1970-01-01 00:00:00 0:00";
        String calendar "julian";
        String axis "T";
        String ancillary_variables "";
        String comment "";
    }
    lat {
        String long_name "latitude";
        String standard_name "latitude";
        String units "degrees_north";
        String axis "Y";
        Float64 valid_min 52.051955;
        Float64 valid_max 52.05650833333334;
        String ancillary_variables "";
        String comment "";
    }
    lon {
        String long_name "longitude";
        String standard_name "longitude";
        String units "degrees_east";
        String axis "X";
        Float64 valid_min 4.177040000000001;
        Float64 valid_max 4.180663333333333;
        String ancillary_variables "";
        String comment "";
    }
    x {
        String long_name "x RD";
        String standard_name "projection_x_coordinate";
        String units "m";
        String axis "X";
        Float64 valid_min 72000.38149574478;
        Float64 valid_max 72248.5962978272;
        String ancillary_variables "";
        String comment "";
    }
    y {
        String long_name "y RD";
        String standard_name "projection_y_coordinate";
        String units "m";
        String axis "Y";
        Float64 valid_min 452205.3134270685;
        Float64 valid_max 452712.1584860822;
        String ancillary_variables "";
        String comment "";
    }
    uv {
        String long_name "velocity magnitude";
        String standard_name "None";
        String units "m s^-1";
        Float64 scale_factor 1.0;
        Float64 add_offset 0.0;
        Float64 valid_min 0.0;
        Float64 valid_max 4.125844449624671;
        String coordinates "time y x";
        String grid_mapping "crs";
        String source "GT31 GPS logger";
        String references "";
        String cell_methods "";
        String ancillary_variables "";
        String comment "";
    }
    vel_dir {
        String long_name "velocity direction";
        String standard_name "direction_of_sea_water_velocity";
        String units "degree";
        Float64 scale_factor 1.0;
        Float64 add_offset 0.0;
        Float64 valid_min -180.0;
        Float64 valid_max 180.0;
        String coordinates "time y x";
        String grid_mapping "crs";
        String source "";
        String references "";
        String cell_methods "";
        String ancillary_variables "";
        String comment "Determined from displacements in x and y. Direction at t = n is determined from offset between x(n) and x(n+1). Last entry is set to nan.";
    }
    u {
        String long_name "u velocity";
        String standard_name "sea_water_x_velocity";
        String units "m s^-1";
        Float64 scale_factor 1.0;
        Float64 add_offset 0.0;
        Float64 valid_min -2.996601709968447;
        Float64 valid_max 1.945735860169806;
        String coordinates "time y x";
        String grid_mapping "crs";
        String source "";
        String references "";
        String cell_methods "";
        String ancillary_variables "";
        String comment "Determined from velocity magnitude and velocity direction.";
    }
    v {
        String long_name "v velocity";
        String standard_name "sea_water_y_velocity";
        String units "m s^-1";
        Float64 scale_factor 1.0;
        Float64 add_offset 0.0;
        Float64 valid_min -0.869290935818341;
        Float64 valid_max 2.8794621247621937;
        String coordinates "time y x";
        String grid_mapping "crs";
        String source "";
        String references "";
        String cell_methods "";
        String ancillary_variables "";
        String comment "Determined from velocity magnitude and velocity direction.";
    }
    id {
        String long_name "drifter number";
        String standard_name "None";
        String units "None";
        Float64 scale_factor 1.0;
        Float64 add_offset 0.0;
        Float64 valid_min 1.0;
        Float64 valid_max 15.0;
        String coordinates "time y x";
        String grid_mapping "crs";
        String source "";
        String references "";
        String cell_methods "";
        String ancillary_variables "";
        String comment "";
    }
    crs {
        String grid_mapping_name "oblique_stereographic";
        String epsg_code "EPSG:28992";
        Float64 semi_major_axis 6377397.155;
        Float64 semi_minor_axis 6356078.96282;
        Float64 inverse_flattening 299.1528128;
        Float64 latitude_of_projection_origin 52.0922178;
        Float64 longitude_of_projection_origin 5.23155;
        Float64 scale_factor_at_projection_origin 0.9999079;
        Float64 false_easting 155000.0;
        Float64 false_northing 463000.0;
        String proj4_params "+proj=sterea +lat_0=52.15616055555555 +lon_0=5.38763888888889 +k=0.999908 +x_0=155000 +y_0=463000 +ellps=bessel +units=m +towgs84=565.4174,50.3319,465.5542,-0.398957388243134,0.343987817378283,-1.87740163998045,4.0725 +no_defs";
    }
    NC_GLOBAL {
        String Conventions "CF-1.6";
        String Metadata_Conventions "Unidata Dataset Discovery v1.0";
        String featureType "trajectory";
        String cdm_data_type "Trajectory";
        String standard_name_vocabulary "CF-1.6";
        String title "drifter data megapex 2014";
        String summary "drifter data as measured during the megapex 2014 field campaign at the Sand Motor, Netherlands.";
        String source "GPS-tracked drifters";
        String platform "drifter";
        String instrument "GT31 gps";
        String uuid "";
        String sea_name "North Sea";
        String id "drifters_ebb_02_10_2014";
        String naming_authority "tudelft.nl";
        String time_coverage_start "2014-10-02T14:09:30Z";
        String time_coverage_end "2014-10-02T15:51:10Z";
        String time_coverage_resolution "1 second";
        Float64 geospatial_lat_min 52.051955;
        Float64 geospatial_lat_max 52.05650833333334;
        String geospatial_lat_units "degrees_north";
        Float64 geospatial_lat_resolution 1.6666666482478831E-6;
        Float64 geospatial_lon_min 4.177040000000001;
        Float64 geospatial_lon_max 4.180663333333333;
        String geospatial_lon_units "degrees_east";
        Float64 geospatial_lon_resolution 1.6666666660114515E-6;
        String institution "Delft University of Technology";
        String creator_name "Max Radermacher";
        String creator_url "http://www.naturecoast.nl/";
        String creator_email "m.radermacher@tudelft.nl";
        String project "STW NatureCoast";
        String processing_level "preliminary";
        String references "";
        String keywords_vocabulary "";
        String keywords "";
        String acknowledgment "STW NatureCoast";
        String comment "";
        String contributor_name "Wilmar Zeelenberg";
        String contributor_role "Performing drifter deployments";
        String date_created "2017-01-22T14:55:52Z";
        String date_modified "2017-01-22T14:55:52Z";
        String date_issued "2017-01-22T14:55:52Z";
        String publisher_name "Max Radermacher";
        String publisher_email "m.radermacher@tudelft.nl";
        String publisher_url "http://www.naturecoast.nl/";
        String history "Data collected on 02-Oct-2014. Processed with script process_drifterlog.m on 22-Jan-2017. Netcdf file created 2017-01-22T14:55:52Z.";
        String license "DISCLAIMER: This data is made available in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.";
        String metadata_link "0";
    }
}