CF-1.6 Unidata Dataset Discovery v1.0 trajectory Trajectory CF-1.6 drifter data megapex 2014 drifter data as measured during the megapex 2014 field campaign at the Sand Motor, Netherlands. GPS-tracked drifters drifter GT31 gps North Sea drifters_flood_30_09_2014 tudelft.nl 2014-09-30T06:58:30Z 2014-09-30T08:58:00Z 1 second 52.058056666666666 52.06543 degrees_north 1.6666666482478831E-6 4.186191666666667 4.207106666666666 degrees_east 1.6666666660114515E-6 Delft University of Technology Max Radermacher http://www.naturecoast.nl/ m.radermacher@tudelft.nl STW NatureCoast preliminary STW NatureCoast Wilmar Zeelenberg Performing drifter deployments 2017-01-22T15:34:45Z 2017-01-22T15:34:45Z 2017-01-22T15:34:45Z Max Radermacher m.radermacher@tudelft.nl http://www.naturecoast.nl/ Data collected on 30-Sep-2014. Processed with script process_drifterlog.m on 22-Jan-2017. Netcdf file created 2017-01-22T15:34:45Z. 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. 0 Unique identifier for each feature instance trajectory_id epoch time time seconds since 1970-01-01 00:00:00 0:00 julian T latitude latitude degrees_north Y 52.058056666666666 52.06543 longitude longitude degrees_east X 4.186191666666667 4.207106666666666 x RD projection_x_coordinate m X 72635.5271192229 74081.1894265557 y RD projection_y_coordinate m Y 452875.35059961095 453672.8199929106 velocity magnitude None m s^-1 1.0 0.0 0.0 2.7985777812915478 time y x crs GT31 GPS logger velocity direction direction_of_sea_water_velocity degree 1.0 0.0 -180.0 180.0 time y x crs 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 velocity sea_water_x_velocity m s^-1 1.0 0.0 -1.3682352364707777 1.8897199725879046 time y x crs Determined from velocity magnitude and velocity direction. v velocity sea_water_y_velocity m s^-1 1.0 0.0 -2.298763531508496 1.918966135432397 time y x crs Determined from velocity magnitude and velocity direction. drifter number None None 1.0 0.0 1.0 15.0 time y x crs oblique_stereographic EPSG:28992 6377397.155 6356078.96282 299.1528128 52.0922178 5.23155 0.9999079 155000.0 463000.0 +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