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_ebb_13_10_2014 tudelft.nl 2014-10-13T11:34:58Z 2014-10-13T13:26:41Z 1 second 52.04350833333333 52.05827166666666 degrees_north 1.6666666482478831E-6 4.158573333333334 4.181475000000001 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 2017-01-22T14:56:34Z 2017-01-22T14:56:34Z 2017-01-22T14:56:34Z Max Radermacher m.radermacher@tudelft.nl http://www.naturecoast.nl/ Data collected on 13-Oct-2014. Processed with script process_drifterlog.m on 22-Jan-2017. Netcdf file created 2017-01-22T14:56:34Z. 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 52.04350833333333 52.05827166666666 longitude longitude degrees_east X 4.158573333333334 4.181475000000001 x RD projection_x_coordinate m X 70712.23109443474 72305.252923658 y RD projection_y_coordinate m Y 451289.28873072634 452908.5576202154 velocity magnitude None m s^-1 1.0 0.0 0.0 2.680255558920765 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 -2.147742826856922 1.0184594366158686 time y x crs Determined from velocity magnitude and velocity direction. v velocity sea_water_y_velocity m s^-1 1.0 0.0 -1.38880233948996 2.089007418695505 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