Sediment drift from Glomma river outlet

from datetime import timedelta, datetime
from opendrift.models.sedimentdrift import SedimentDrift

o = SedimentDrift(loglevel=20)  # 0 for debug output

if False:  # Using constant south-westwards current and wind
    o.set_config('environment:fallback:x_sea_water_velocity', -.05)
    o.set_config('environment:fallback:y_sea_water_velocity', -.1)
    o.set_config('environment:fallback:y_wind', -6)
    o.set_config('environment:fallback:x_wind', -2)
    o.set_config('environment:fallback:sea_floor_depth_below_sea_level', 100)  # 100m depth
else:  # Using live data from Thredds
    o.add_readers_from_list([
        'https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be'])

16:16:41 INFO    opendrift:569: OpenDriftSimulation initialised (version 1.14.10 / v1.14.10-37-gd24556f)

Adding some diffusion

o.set_config('drift:current_uncertainty', .2)
o.set_config('drift:wind_uncertainty', 2)
o.set_config('vertical_mixing:diffusivitymodel', 'windspeed_Large1994')
#o.set_config('vertical_mixing:diffusivitymodel', 'environment')

Source of sediments at Glomma river outlet

lat=59.169194
lon=10.962920
o.seed_elements(lon=lon, lat=lat, number=10000,
                time=[datetime.now(), datetime.now()+timedelta(hours=48)],
                terminal_velocity=-.001)  # 1 mm/s settling speed

o.run(time_step=600, time_step_output=1800, duration=timedelta(hours=36))

16:16:41 INFO    opendrift.models.basemodel.environment:203: Adding a global landmask from GSHHG
16:16:48 INFO    opendrift.models.basemodel.environment:227: Fallback values will be used for the following variables which have no readers:
16:16:48 INFO    opendrift.models.basemodel.environment:230:    x_sea_water_velocity: 0.000000
16:16:48 INFO    opendrift.models.basemodel.environment:230:    y_sea_water_velocity: 0.000000
16:16:48 INFO    opendrift.models.basemodel.environment:230:    sea_surface_height: 0.000000
16:16:48 INFO    opendrift.models.basemodel.environment:230:    upward_sea_water_velocity: 0.000000
16:16:48 INFO    opendrift.models.basemodel.environment:230:    x_wind: 0.000000
16:16:48 INFO    opendrift.models.basemodel.environment:230:    y_wind: 0.000000
16:16:48 INFO    opendrift.models.basemodel.environment:230:    sea_surface_wave_stokes_drift_x_velocity: 0.000000
16:16:48 INFO    opendrift.models.basemodel.environment:230:    sea_surface_wave_stokes_drift_y_velocity: 0.000000
16:16:48 INFO    opendrift.models.basemodel.environment:230:    sea_surface_wave_period_at_variance_spectral_density_maximum: 0.000000
16:16:48 INFO    opendrift.models.basemodel.environment:230:    sea_surface_wave_mean_period_from_variance_spectral_density_second_frequency_moment: 0.000000
16:16:48 INFO    opendrift.models.basemodel.environment:230:    ocean_vertical_diffusivity: 0.020000
16:16:48 INFO    opendrift.models.basemodel.environment:230:    ocean_mixed_layer_thickness: 50.000000
16:16:48 INFO    opendrift.models.basemodel.environment:230:    sea_floor_depth_below_sea_level: 10000.000000
16:16:48 INFO    opendrift:1914: Storing previous values of element property lon because of condition (('general:coastline_action', 'in', ['stranding', 'previous']), 'or', ('general:seafloor_action', 'in', ['previous']))
16:16:48 INFO    opendrift:1914: Storing previous values of element property lat because of condition (('general:coastline_action', 'in', ['stranding', 'previous']), 'or', ('general:seafloor_action', 'in', ['previous']))
16:16:48 INFO    opendrift:955: Using existing reader for land_binary_mask to move elements to ocean
16:16:48 INFO    opendrift:986: All points are in ocean
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16:16:48 INFO    opendrift.readers:67: Opening file with xr.open_dataset
16:16:51 INFO    opendrift.readers.reader_netCDF_CF_generic:340: Detected dimensions: {'x': 'X', 'y': 'Y', 'z': 'depth', 'time': 'time'}
16:16:51 INFO    opendrift.readers.basereader:175: Variable x_sea_water_velocity will be rotated from eastward_sea_water_velocity
16:16:51 INFO    opendrift.readers.basereader:175: Variable y_sea_water_velocity will be rotated from northward_sea_water_velocity
16:16:51 INFO    opendrift.readers.basereader:175: Variable x_wind will be rotated from eastward_wind
16:16:51 INFO    opendrift.readers.basereader:175: Variable y_wind will be rotated from northward_wind
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16:17:47 INFO    opendrift:2213: 2026-08-22 16:26:41.390198 - step 146 of 216 - 5069 active elements (0 deactivated)
16:17:48 INFO    opendrift:2213: 2026-08-22 16:36:41.390198 - step 147 of 216 - 5104 active elements (0 deactivated)
16:17:48 INFO    opendrift:2213: 2026-08-22 16:46:41.390198 - step 148 of 216 - 5139 active elements (0 deactivated)
16:17:48 INFO    opendrift:2213: 2026-08-22 16:56:41.390198 - step 149 of 216 - 5174 active elements (0 deactivated)
16:17:49 INFO    opendrift:2213: 2026-08-22 17:06:41.390198 - step 150 of 216 - 5208 active elements (0 deactivated)
16:17:50 INFO    opendrift:2213: 2026-08-22 17:16:41.390198 - step 151 of 216 - 5243 active elements (0 deactivated)
16:17:51 INFO    opendrift:2213: 2026-08-22 17:26:41.390198 - step 152 of 216 - 5278 active elements (0 deactivated)
16:17:51 INFO    opendrift:2213: 2026-08-22 17:36:41.390198 - step 153 of 216 - 5312 active elements (0 deactivated)
16:17:51 INFO    opendrift:2213: 2026-08-22 17:46:41.390198 - step 154 of 216 - 5347 active elements (0 deactivated)
16:17:51 INFO    opendrift:2213: 2026-08-22 17:56:41.390198 - step 155 of 216 - 5382 active elements (0 deactivated)
16:17:51 INFO    opendrift:2213: 2026-08-22 18:06:41.390198 - step 156 of 216 - 5417 active elements (0 deactivated)
16:17:53 INFO    opendrift:2213: 2026-08-22 18:16:41.390198 - step 157 of 216 - 5451 active elements (0 deactivated)
16:17:53 INFO    opendrift:2213: 2026-08-22 18:26:41.390198 - step 158 of 216 - 5486 active elements (0 deactivated)
16:17:54 INFO    opendrift:2213: 2026-08-22 18:36:41.390198 - step 159 of 216 - 5521 active elements (0 deactivated)
16:17:54 INFO    opendrift:2213: 2026-08-22 18:46:41.390198 - step 160 of 216 - 5556 active elements (0 deactivated)
16:17:54 INFO    opendrift:2213: 2026-08-22 18:56:41.390198 - step 161 of 216 - 5590 active elements (0 deactivated)
16:17:54 INFO    opendrift:2213: 2026-08-22 19:06:41.390198 - step 162 of 216 - 5625 active elements (0 deactivated)
16:17:56 INFO    opendrift:2213: 2026-08-22 19:16:41.390198 - step 163 of 216 - 5660 active elements (0 deactivated)
16:17:56 INFO    opendrift:2213: 2026-08-22 19:26:41.390198 - step 164 of 216 - 5694 active elements (0 deactivated)
16:17:56 INFO    opendrift:2213: 2026-08-22 19:36:41.390198 - step 165 of 216 - 5729 active elements (0 deactivated)
16:17:57 INFO    opendrift:2213: 2026-08-22 19:46:41.390198 - step 166 of 216 - 5764 active elements (0 deactivated)
16:17:57 INFO    opendrift:2213: 2026-08-22 19:56:41.390198 - step 167 of 216 - 5799 active elements (0 deactivated)
16:17:57 INFO    opendrift:2213: 2026-08-22 20:06:41.390198 - step 168 of 216 - 5833 active elements (0 deactivated)
16:17:59 INFO    opendrift:2213: 2026-08-22 20:16:41.390198 - step 169 of 216 - 5868 active elements (0 deactivated)
16:17:59 INFO    opendrift:2213: 2026-08-22 20:26:41.390198 - step 170 of 216 - 5903 active elements (0 deactivated)
16:17:59 INFO    opendrift:2213: 2026-08-22 20:36:41.390198 - step 171 of 216 - 5937 active elements (0 deactivated)
16:17:59 INFO    opendrift:2213: 2026-08-22 20:46:41.390198 - step 172 of 216 - 5972 active elements (0 deactivated)
16:18:00 INFO    opendrift:2213: 2026-08-22 20:56:41.390198 - step 173 of 216 - 6007 active elements (0 deactivated)
16:18:00 INFO    opendrift:2213: 2026-08-22 21:06:41.390198 - step 174 of 216 - 6042 active elements (0 deactivated)
16:18:02 INFO    opendrift:2213: 2026-08-22 21:16:41.390198 - step 175 of 216 - 6076 active elements (0 deactivated)
16:18:02 INFO    opendrift:2213: 2026-08-22 21:26:41.390198 - step 176 of 216 - 6111 active elements (0 deactivated)
16:18:02 INFO    opendrift:2213: 2026-08-22 21:36:41.390198 - step 177 of 216 - 6146 active elements (0 deactivated)
16:18:02 INFO    opendrift:2213: 2026-08-22 21:46:41.390198 - step 178 of 216 - 6180 active elements (0 deactivated)
16:18:03 INFO    opendrift:2213: 2026-08-22 21:56:41.390198 - step 179 of 216 - 6215 active elements (0 deactivated)
16:18:03 INFO    opendrift:2213: 2026-08-22 22:06:41.390198 - step 180 of 216 - 6250 active elements (0 deactivated)
16:18:05 INFO    opendrift:2213: 2026-08-22 22:16:41.390198 - step 181 of 216 - 6285 active elements (0 deactivated)
16:18:05 INFO    opendrift:2213: 2026-08-22 22:26:41.390198 - step 182 of 216 - 6319 active elements (0 deactivated)
16:18:05 INFO    opendrift:2213: 2026-08-22 22:36:41.390198 - step 183 of 216 - 6354 active elements (0 deactivated)
16:18:06 INFO    opendrift:2213: 2026-08-22 22:46:41.390198 - step 184 of 216 - 6389 active elements (0 deactivated)
16:18:06 INFO    opendrift:2213: 2026-08-22 22:56:41.390198 - step 185 of 216 - 6423 active elements (0 deactivated)
16:18:06 INFO    opendrift:2213: 2026-08-22 23:06:41.390198 - step 186 of 216 - 6458 active elements (0 deactivated)
16:18:08 INFO    opendrift:2213: 2026-08-22 23:16:41.390198 - step 187 of 216 - 6493 active elements (0 deactivated)
16:18:09 INFO    opendrift:2213: 2026-08-22 23:26:41.390198 - step 188 of 216 - 6528 active elements (0 deactivated)
16:18:09 INFO    opendrift:2213: 2026-08-22 23:36:41.390198 - step 189 of 216 - 6562 active elements (0 deactivated)
16:18:09 INFO    opendrift:2213: 2026-08-22 23:46:41.390198 - step 190 of 216 - 6597 active elements (0 deactivated)
16:18:09 INFO    opendrift:2213: 2026-08-22 23:56:41.390198 - step 191 of 216 - 6632 active elements (0 deactivated)
16:18:10 INFO    opendrift:2213: 2026-08-23 00:06:41.390198 - step 192 of 216 - 6667 active elements (0 deactivated)
16:18:11 INFO    opendrift:2213: 2026-08-23 00:16:41.390198 - step 193 of 216 - 6701 active elements (0 deactivated)
16:18:12 INFO    opendrift:2213: 2026-08-23 00:26:41.390198 - step 194 of 216 - 6736 active elements (0 deactivated)
16:18:12 INFO    opendrift:2213: 2026-08-23 00:36:41.390198 - step 195 of 216 - 6771 active elements (0 deactivated)
16:18:12 INFO    opendrift:2213: 2026-08-23 00:46:41.390198 - step 196 of 216 - 6805 active elements (0 deactivated)
16:18:13 INFO    opendrift:2213: 2026-08-23 00:56:41.390198 - step 197 of 216 - 6840 active elements (0 deactivated)
16:18:13 INFO    opendrift:2213: 2026-08-23 01:06:41.390198 - step 198 of 216 - 6875 active elements (0 deactivated)
16:18:15 INFO    opendrift:2213: 2026-08-23 01:16:41.390198 - step 199 of 216 - 6910 active elements (0 deactivated)
16:18:15 INFO    opendrift:2213: 2026-08-23 01:26:41.390198 - step 200 of 216 - 6944 active elements (0 deactivated)
16:18:15 INFO    opendrift:2213: 2026-08-23 01:36:41.390198 - step 201 of 216 - 6979 active elements (0 deactivated)
16:18:16 INFO    opendrift:2213: 2026-08-23 01:46:41.390198 - step 202 of 216 - 7014 active elements (0 deactivated)
16:18:16 INFO    opendrift:2213: 2026-08-23 01:56:41.390198 - step 203 of 216 - 7048 active elements (0 deactivated)
16:18:16 INFO    opendrift:2213: 2026-08-23 02:06:41.390198 - step 204 of 216 - 7083 active elements (0 deactivated)
16:18:18 INFO    opendrift:2213: 2026-08-23 02:16:41.390198 - step 205 of 216 - 7118 active elements (0 deactivated)
16:18:18 INFO    opendrift:2213: 2026-08-23 02:26:41.390198 - step 206 of 216 - 7153 active elements (0 deactivated)
16:18:18 INFO    opendrift:2213: 2026-08-23 02:36:41.390198 - step 207 of 216 - 7187 active elements (0 deactivated)
16:18:19 INFO    opendrift:2213: 2026-08-23 02:46:41.390198 - step 208 of 216 - 7222 active elements (0 deactivated)
16:18:19 INFO    opendrift:2213: 2026-08-23 02:56:41.390198 - step 209 of 216 - 7257 active elements (0 deactivated)
16:18:19 INFO    opendrift:2213: 2026-08-23 03:06:41.390198 - step 210 of 216 - 7291 active elements (0 deactivated)
16:18:21 INFO    opendrift:2213: 2026-08-23 03:16:41.390198 - step 211 of 216 - 7326 active elements (0 deactivated)
16:18:22 INFO    opendrift:2213: 2026-08-23 03:26:41.390198 - step 212 of 216 - 7361 active elements (0 deactivated)
16:18:22 INFO    opendrift:2213: 2026-08-23 03:36:41.390198 - step 213 of 216 - 7396 active elements (0 deactivated)
16:18:22 INFO    opendrift:2213: 2026-08-23 03:46:41.390198 - step 214 of 216 - 7430 active elements (0 deactivated)
16:18:23 INFO    opendrift:2213: 2026-08-23 03:56:41.390198 - step 215 of 216 - 7465 active elements (0 deactivated)
16:18:23 INFO    opendrift:2213: 2026-08-23 04:06:41.390198 - step 216 of 216 - 7500 active elements (0 deactivated)
16:18:25 INFO    opendrift:2323: Removing 2500 unseeded elements

<xarray.Dataset> Size: 55MB
Dimensions:                                                                              (
                                                                                          trajectory: 7500,
                                                                                          time: 73)
Coordinates:
  * trajectory                                                                           (trajectory) int64 60kB ...
  * time                                                                                 (time) datetime64[ns] 584B ...
Data variables: (12/25)
    status                                                                               (trajectory, time) float32 2MB ...
    moving                                                                               (trajectory, time) float32 2MB ...
    age_seconds                                                                          (trajectory, time) float32 2MB ...
    origin_marker                                                                        (trajectory, time) float32 2MB ...
    lon                                                                                  (trajectory, time) float32 2MB ...
    lat                                                                                  (trajectory, time) float32 2MB ...
    ...                                                                                   ...
    sea_surface_wave_period_at_variance_spectral_density_maximum                         (trajectory, time) float32 2MB ...
    sea_surface_wave_mean_period_from_variance_spectral_density_second_frequency_moment  (trajectory, time) float32 2MB ...
    land_binary_mask                                                                     (trajectory, time) float32 2MB ...
    ocean_vertical_diffusivity                                                           (trajectory, time) float32 2MB ...
    ocean_mixed_layer_thickness                                                          (trajectory, time) float32 2MB ...
    sea_floor_depth_below_sea_level                                                      (trajectory, time) float32 2MB ...
Attributes: (12/125)
    Conventions:                                                             ...
    standard_name_vocabulary:                                                ...
    featureType:                                                             ...
    title:                                                                   ...
    summary:                                                                 ...
    keywords:                                                                ...
    ...                                                                                                               ...
    geospatial_lon_units:                                                    ...
    geospatial_lon_resolution:                                               ...
    runtime:                                                                 ...
    geospatial_vertical_min:                                                 ...
    geospatial_vertical_max:                                                 ...
    geospatial_vertical_positive:                                            ...

xarray.Dataset

• Dimensions:
  • trajectory: 7500
  • time: 73
• Coordinates: (2)
  • trajectory
    (trajectory)
    int64
    0 1 2 3 4 ... 7496 7497 7498 7499

    cf_role :

    trajectory_id

    dtype :

    <class 'numpy.int32'>

    array([   0,    1,    2, ..., 7497, 7498, 7499], shape=(7500,))

  • time
    (time)
    datetime64[ns]
    2026-08-21T16:16:41.390198 ... 2...

    standard_name :

    time

    long_name :

    time

    dtype :

    <class 'numpy.float64'>

    array(['2026-08-21T16:16:41.390198000', '2026-08-21T16:46:41.390198000',
           '2026-08-21T17:16:41.390198000', '2026-08-21T17:46:41.390198000',
           '2026-08-21T18:16:41.390198000', '2026-08-21T18:46:41.390198000',
           '2026-08-21T19:16:41.390198000', '2026-08-21T19:46:41.390198000',
           '2026-08-21T20:16:41.390198000', '2026-08-21T20:46:41.390198000',
           '2026-08-21T21:16:41.390198000', '2026-08-21T21:46:41.390198000',
           '2026-08-21T22:16:41.390198000', '2026-08-21T22:46:41.390198000',
           '2026-08-21T23:16:41.390198000', '2026-08-21T23:46:41.390198000',
           '2026-08-22T00:16:41.390198000', '2026-08-22T00:46:41.390198000',
           '2026-08-22T01:16:41.390198000', '2026-08-22T01:46:41.390198000',
           '2026-08-22T02:16:41.390198000', '2026-08-22T02:46:41.390198000',
           '2026-08-22T03:16:41.390198000', '2026-08-22T03:46:41.390198000',
           '2026-08-22T04:16:41.390198000', '2026-08-22T04:46:41.390198000',
           '2026-08-22T05:16:41.390198000', '2026-08-22T05:46:41.390198000',
           '2026-08-22T06:16:41.390198000', '2026-08-22T06:46:41.390198000',
           '2026-08-22T07:16:41.390198000', '2026-08-22T07:46:41.390198000',
           '2026-08-22T08:16:41.390198000', '2026-08-22T08:46:41.390198000',
           '2026-08-22T09:16:41.390198000', '2026-08-22T09:46:41.390198000',
           '2026-08-22T10:16:41.390198000', '2026-08-22T10:46:41.390198000',
           '2026-08-22T11:16:41.390198000', '2026-08-22T11:46:41.390198000',
           '2026-08-22T12:16:41.390198000', '2026-08-22T12:46:41.390198000',
           '2026-08-22T13:16:41.390198000', '2026-08-22T13:46:41.390198000',
           '2026-08-22T14:16:41.390198000', '2026-08-22T14:46:41.390198000',
           '2026-08-22T15:16:41.390198000', '2026-08-22T15:46:41.390198000',
           '2026-08-22T16:16:41.390198000', '2026-08-22T16:46:41.390198000',
           '2026-08-22T17:16:41.390198000', '2026-08-22T17:46:41.390198000',
           '2026-08-22T18:16:41.390198000', '2026-08-22T18:46:41.390198000',
           '2026-08-22T19:16:41.390198000', '2026-08-22T19:46:41.390198000',
           '2026-08-22T20:16:41.390198000', '2026-08-22T20:46:41.390198000',
           '2026-08-22T21:16:41.390198000', '2026-08-22T21:46:41.390198000',
           '2026-08-22T22:16:41.390198000', '2026-08-22T22:46:41.390198000',
           '2026-08-22T23:16:41.390198000', '2026-08-22T23:46:41.390198000',
           '2026-08-23T00:16:41.390198000', '2026-08-23T00:46:41.390198000',
           '2026-08-23T01:16:41.390198000', '2026-08-23T01:46:41.390198000',
           '2026-08-23T02:16:41.390198000', '2026-08-23T02:46:41.390198000',
           '2026-08-23T03:16:41.390198000', '2026-08-23T03:46:41.390198000',
           '2026-08-23T04:16:41.390198000'], dtype='datetime64[ns]')

• Data variables: (25)
  • status
    (trajectory, time)
    float32
    0.0 0.0 0.0 0.0 ... nan nan nan 0.0

    dtype :

    <class 'numpy.int32'>

    valid_range :

    [0 0]

    flag_values :

    [0]

    flag_meanings :

    active

    array([[ 0.,  0.,  0., ...,  0.,  0.,  0.],
           [ 0.,  0.,  0., ...,  0.,  0.,  0.],
           [ 0.,  0.,  0., ...,  0.,  0.,  0.],
           ...,
           [nan, nan, nan, ..., nan, nan,  0.],
           [nan, nan, nan, ..., nan, nan,  0.],
           [nan, nan, nan, ..., nan, nan,  0.]],
          shape=(7500, 73), dtype=float32)

  • moving
    (trajectory, time)
    float32
    1.0 1.0 1.0 1.0 ... nan nan nan 1.0

    dtype :

    <class 'numpy.int32'>

    minval :

    1

    maxval :

    1

    array([[ 1.,  1.,  1., ...,  1.,  1.,  1.],
           [ 1.,  1.,  1., ...,  1.,  1.,  1.],
           [ 1.,  1.,  1., ...,  1.,  1.,  1.],
           ...,
           [nan, nan, nan, ..., nan, nan,  1.],
           [nan, nan, nan, ..., nan, nan,  1.],
           [nan, nan, nan, ..., nan, nan,  1.]],
          shape=(7500, 73), dtype=float32)

  • age_seconds
    (trajectory, time)
    float32
    0.0 1.8e+03 3.6e+03 ... nan 600.0

    dtype :

    <class 'numpy.float32'>

    units :

    s

    minval :

    0.0

    maxval :

    129600.0

    array([[     0.,   1800.,   3600., ..., 126000., 127800., 129600.],
           [     0.,   1800.,   3600., ..., 126000., 127800., 129600.],
           [     0.,   1800.,   3600., ..., 126000., 127800., 129600.],
           ...,
           [    nan,     nan,     nan, ...,     nan,     nan,    600.],
           [    nan,     nan,     nan, ...,     nan,     nan,    600.],
           [    nan,     nan,     nan, ...,     nan,     nan,    600.]],
          shape=(7500, 73), dtype=float32)

  • origin_marker
    (trajectory, time)
    float32
    0.0 0.0 0.0 0.0 ... nan nan nan 0.0

    dtype :

    <class 'numpy.int32'>

    unit :

    description :

    An integer kept constant during the simulation. Different values may be used for different seedings, to separate elements during analysis. With GUI, only a single seeding is possible.

    flag_values :

    [0]

    flag_meanings :

    Seed_0

    minval :

    0

    maxval :

    0

    array([[ 0.,  0.,  0., ...,  0.,  0.,  0.],
           [ 0.,  0.,  0., ...,  0.,  0.,  0.],
           [ 0.,  0.,  0., ...,  0.,  0.,  0.],
           ...,
           [nan, nan, nan, ..., nan, nan,  0.],
           [nan, nan, nan, ..., nan, nan,  0.],
           [nan, nan, nan, ..., nan, nan,  0.]],
          shape=(7500, 73), dtype=float32)

  • lon
    (trajectory, time)
    float32
    10.96 10.97 10.98 ... nan nan 10.97

    dtype :

    <class 'numpy.float32'>

    units :

    degrees_east

    standard_name :

    longitude

    long_name :

    longitude

    axis :

    X

    minval :

    10.741035

    maxval :

    11.117093

    array([[10.96292  , 10.974951 , 10.976902 , ..., 10.845024 , 10.840718 ,
            10.841776 ],
           [10.96292  , 10.972477 , 10.977867 , ..., 10.9888525, 10.990395 ,
            10.985495 ],
           [10.96292  , 10.972251 , 10.980154 , ..., 10.851872 , 10.851721 ,
            10.845899 ],
           ...,
           [       nan,        nan,        nan, ...,        nan,        nan,
            10.964675 ],
           [       nan,        nan,        nan, ...,        nan,        nan,
            10.965902 ],
           [       nan,        nan,        nan, ...,        nan,        nan,
            10.966222 ]], shape=(7500, 73), dtype=float32)

  • lat
    (trajectory, time)
    float32
    59.17 59.17 59.17 ... nan nan 59.17

    dtype :

    <class 'numpy.float32'>

    units :

    degrees_north

    standard_name :

    latitude

    long_name :

    latitude

    axis :

    Y

    minval :

    58.79392

    maxval :

    59.18378

    array([[59.169193, 59.1691  , 59.17059 , ..., 59.053925, 59.049496,
            59.041958],
           [59.169193, 59.171684, 59.16842 , ..., 59.021297, 59.015217,
            59.007057],
           [59.169193, 59.168148, 59.168083, ..., 58.8254  , 58.820076,
            58.813507],
           ...,
           [      nan,       nan,       nan, ...,       nan,       nan,
            59.168217],
           [      nan,       nan,       nan, ...,       nan,       nan,
            59.168175],
           [      nan,       nan,       nan, ...,       nan,       nan,
            59.168293]], shape=(7500, 73), dtype=float32)

  • z
    (trajectory, time)
    float32
    0.0 0.0 0.0 0.0 ... nan nan nan 0.0

    dtype :

    <class 'numpy.float32'>

    units :

    m

    standard_name :

    z

    long_name :

    vertical position

    axis :

    Z

    positive :

    up

    minval :

    0.0

    maxval :

    0.0

    array([[ 0.,  0.,  0., ...,  0.,  0.,  0.],
           [ 0.,  0.,  0., ...,  0.,  0.,  0.],
           [ 0.,  0.,  0., ...,  0.,  0.,  0.],
           ...,
           [nan, nan, nan, ..., nan, nan,  0.],
           [nan, nan, nan, ..., nan, nan,  0.],
           [nan, nan, nan, ..., nan, nan,  0.]],
          shape=(7500, 73), dtype=float32)

  • wind_drift_factor
    (trajectory, time)
    float32
    0.02 0.02 0.02 ... nan nan 0.02

    dtype :

    <class 'numpy.float32'>

    units :

    1

    description :

    Elements at surface are moved with this fraction of the vind vector, in addition to currents and Stokes drift

    minval :

    0.02

    maxval :

    0.02

    array([[0.02, 0.02, 0.02, ..., 0.02, 0.02, 0.02],
           [0.02, 0.02, 0.02, ..., 0.02, 0.02, 0.02],
           [0.02, 0.02, 0.02, ..., 0.02, 0.02, 0.02],
           ...,
           [ nan,  nan,  nan, ...,  nan,  nan, 0.02],
           [ nan,  nan,  nan, ...,  nan,  nan, 0.02],
           [ nan,  nan,  nan, ...,  nan,  nan, 0.02]],
          shape=(7500, 73), dtype=float32)

  • current_drift_factor
    (trajectory, time)
    float32
    1.0 1.0 1.0 1.0 ... nan nan nan 1.0

    dtype :

    <class 'numpy.float32'>

    units :

    1

    description :

    Elements are moved with this fraction of the current vector, in addition to currents and Stokes drift

    minval :

    1.0

    maxval :

    1.0

    array([[ 1.,  1.,  1., ...,  1.,  1.,  1.],
           [ 1.,  1.,  1., ...,  1.,  1.,  1.],
           [ 1.,  1.,  1., ...,  1.,  1.,  1.],
           ...,
           [nan, nan, nan, ..., nan, nan,  1.],
           [nan, nan, nan, ..., nan, nan,  1.],
           [nan, nan, nan, ..., nan, nan,  1.]],
          shape=(7500, 73), dtype=float32)

  • terminal_velocity
    (trajectory, time)
    float32
    -0.001 -0.001 -0.001 ... nan -0.001

    dtype :

    <class 'numpy.float32'>

    units :

    m/s

    minval :

    -0.001

    maxval :

    -0.001

    array([[-0.001, -0.001, -0.001, ..., -0.001, -0.001, -0.001],
           [-0.001, -0.001, -0.001, ..., -0.001, -0.001, -0.001],
           [-0.001, -0.001, -0.001, ..., -0.001, -0.001, -0.001],
           ...,
           [   nan,    nan,    nan, ...,    nan,    nan, -0.001],
           [   nan,    nan,    nan, ...,    nan,    nan, -0.001],
           [   nan,    nan,    nan, ...,    nan,    nan, -0.001]],
          shape=(7500, 73), dtype=float32)

  • settled
    (trajectory, time)
    float32
    0.0 0.0 0.0 0.0 ... nan nan nan 0.0

    dtype :

    <class 'numpy.uint8'>

    units :

    1

    minval :

    0

    maxval :

    0

    array([[ 0.,  0.,  0., ...,  0.,  0.,  0.],
           [ 0.,  0.,  0., ...,  0.,  0.,  0.],
           [ 0.,  0.,  0., ...,  0.,  0.,  0.],
           ...,
           [nan, nan, nan, ..., nan, nan,  0.],
           [nan, nan, nan, ..., nan, nan,  0.],
           [nan, nan, nan, ..., nan, nan,  0.]],
          shape=(7500, 73), dtype=float32)

  • x_sea_water_velocity
    (trajectory, time)
    float32
    0.509 0.3224 -0.245 ... nan 0.3264

    minval :

    -1.1966066

    maxval :

    1.0591933

    array([[ 0.5089585 ,  0.32240787, -0.24503905, ...,  0.12433373,
             0.01014336,  0.09245988],
           [ 0.23617952,  0.18010795,  0.58184254, ...,  0.15253791,
            -0.1494606 , -0.2286518 ],
           [ 0.35189566,  0.37731904,  0.19122773, ...,  0.11611807,
            -0.04475393, -0.03741987],
           ...,
           [        nan,         nan,         nan, ...,         nan,
                    nan,  0.12593783],
           [        nan,         nan,         nan, ...,         nan,
                    nan,  0.2202124 ],
           [        nan,         nan,         nan, ...,         nan,
                    nan,  0.32635877]], shape=(7500, 73), dtype=float32)

  • y_sea_water_velocity
    (trajectory, time)
    float32
    -0.07941 -0.11 ... nan -0.1282

    minval :

    -1.201544

    maxval :

    0.8617821

    array([[-0.07940523, -0.11001916,  0.12506829, ..., -0.11704716,
            -0.48652533, -0.23160374],
           [ 0.13538311,  0.00306254,  0.0969184 , ..., -0.503243  ,
            -0.18649934, -0.6943615 ],
           [ 0.12980095,  0.00884176, -0.06393383, ..., -0.3336107 ,
            -0.17263529, -0.3025423 ],
           ...,
           [        nan,         nan,         nan, ...,         nan,
                    nan, -0.1346522 ],
           [        nan,         nan,         nan, ...,         nan,
                    nan, -0.11919129],
           [        nan,         nan,         nan, ...,         nan,
                    nan, -0.12820077]], shape=(7500, 73), dtype=float32)

  • sea_surface_height
    (trajectory, time)
    float32
    -0.2664 -0.2686 ... nan -0.2753

    minval :

    -0.30521655

    maxval :

    0.08099305

    array([[-0.26638597, -0.26855385, -0.26330003, ..., -0.23267198,
            -0.27375782, -0.29796356],
           [-0.26638597, -0.26852345, -0.26348516, ..., -0.22117281,
            -0.2618741 , -0.28613296],
           [-0.26638597, -0.2686684 , -0.26383263, ..., -0.21537343,
            -0.25667864, -0.2810154 ],
           ...,
           [        nan,         nan,         nan, ...,         nan,
                    nan, -0.27534968],
           [        nan,         nan,         nan, ...,         nan,
                    nan, -0.27534968],
           [        nan,         nan,         nan, ...,         nan,
                    nan, -0.27534968]], shape=(7500, 73), dtype=float32)

  • upward_sea_water_velocity
    (trajectory, time)
    float32
    -1.934e-05 ... -3.744e-05

    minval :

    -4.0770305e-05

    maxval :

    2.8268527e-05

    array([[-1.9335372e-05, -2.2183606e-06,  5.5632786e-06, ...,
            -2.7218361e-05, -2.1825834e-05, -1.8885026e-05],
           [-1.9335372e-05, -2.2183606e-06,  5.5632786e-06, ...,
            -2.0830452e-05, -2.0845795e-05, -1.8885026e-05],
           [-1.9335372e-05, -2.2183606e-06,  5.5632786e-06, ...,
            -1.9999999e-05, -1.9999999e-05, -1.8885026e-05],
           ...,
           [           nan,            nan,            nan, ...,
                       nan,            nan, -3.7435817e-05],
           [           nan,            nan,            nan, ...,
                       nan,            nan, -3.7435817e-05],
           [           nan,            nan,            nan, ...,
                       nan,            nan, -3.7435817e-05]],
          shape=(7500, 73), dtype=float32)

  • x_wind
    (trajectory, time)
    float32
    4.573 0.2074 1.045 ... nan -0.5796

    minval :

    -9.11217

    maxval :

    11.227878

    array([[ 4.5730104 ,  0.20741008,  1.044647  , ...,  2.3734767 ,
            -2.54571   , -1.1254655 ],
           [ 3.3727953 ,  0.5385183 , -2.7238586 , ...,  0.14857624,
            -0.8951933 , -0.9179465 ],
           [ 5.393631  ,  0.13743004,  2.907085  , ..., -0.39893028,
            -1.325883  ,  1.8111554 ],
           ...,
           [        nan,         nan,         nan, ...,         nan,
                    nan,  2.0688965 ],
           [        nan,         nan,         nan, ...,         nan,
                    nan,  3.2024913 ],
           [        nan,         nan,         nan, ...,         nan,
                    nan, -0.57957125]], shape=(7500, 73), dtype=float32)

  • y_wind
    (trajectory, time)
    float32
    6.403 1.757 1.412 ... nan nan -1.94

    minval :

    -16.586296

    maxval :

    10.354871

    array([[  6.4029636 ,   1.756504  ,   1.4115493 , ...,  -5.719875  ,
             -4.833127  ,  -8.730649  ],
           [  1.6884831 ,   0.03340686,   0.75446206, ...,  -5.0929055 ,
             -5.7216887 ,  -6.9888787 ],
           [  1.0208114 ,  -1.1437011 ,   3.5834465 , ...,  -8.708402  ,
            -12.3142805 ,  -9.724668  ],
           ...,
           [         nan,          nan,          nan, ...,          nan,
                     nan,  -2.3171818 ],
           [         nan,          nan,          nan, ...,          nan,
                     nan,  -3.4785318 ],
           [         nan,          nan,          nan, ...,          nan,
                     nan,  -1.940451  ]], shape=(7500, 73), dtype=float32)

  • sea_surface_wave_stokes_drift_x_velocity
    (trajectory, time)
    float32
    0.0 0.0 0.0 0.0 ... nan nan nan 0.0

    minval :

    0.0

    maxval :

    0.0

    array([[ 0.,  0.,  0., ...,  0.,  0.,  0.],
           [ 0.,  0.,  0., ...,  0.,  0.,  0.],
           [ 0.,  0.,  0., ...,  0.,  0.,  0.],
           ...,
           [nan, nan, nan, ..., nan, nan,  0.],
           [nan, nan, nan, ..., nan, nan,  0.],
           [nan, nan, nan, ..., nan, nan,  0.]],
          shape=(7500, 73), dtype=float32)

  • sea_surface_wave_stokes_drift_y_velocity
    (trajectory, time)
    float32
    0.0 0.0 0.0 0.0 ... nan nan nan 0.0

    minval :

    0.0

    maxval :

    0.0

    array([[ 0.,  0.,  0., ...,  0.,  0.,  0.],
           [ 0.,  0.,  0., ...,  0.,  0.,  0.],
           [ 0.,  0.,  0., ...,  0.,  0.,  0.],
           ...,
           [nan, nan, nan, ..., nan, nan,  0.],
           [nan, nan, nan, ..., nan, nan,  0.],
           [nan, nan, nan, ..., nan, nan,  0.]],
          shape=(7500, 73), dtype=float32)

  • sea_surface_wave_period_at_variance_spectral_density_maximum
    (trajectory, time)
    float32
    0.0 0.0 0.0 0.0 ... nan nan nan 0.0

    minval :

    0.0

    maxval :

    0.0

    array([[ 0.,  0.,  0., ...,  0.,  0.,  0.],
           [ 0.,  0.,  0., ...,  0.,  0.,  0.],
           [ 0.,  0.,  0., ...,  0.,  0.,  0.],
           ...,
           [nan, nan, nan, ..., nan, nan,  0.],
           [nan, nan, nan, ..., nan, nan,  0.],
           [nan, nan, nan, ..., nan, nan,  0.]],
          shape=(7500, 73), dtype=float32)

  • sea_surface_wave_mean_period_from_variance_spectral_density_second_frequency_moment
    (trajectory, time)
    float32
    6.723 1.511 1.501 ... nan nan 1.73

    minval :

    0.018694129

    maxval :

    14.207484

    array([[ 6.7232428 ,  1.5113084 ,  1.5005047 , ...,  5.2915373 ,
             4.667612  ,  7.5218124 ],
           [ 3.2229204 ,  0.46103257,  2.415088  , ...,  4.3535895 ,
             4.948491  ,  6.0230813 ],
           [ 4.690515  ,  0.98428905,  3.9428272 , ...,  7.448877  ,
            10.583007  ,  8.452327  ],
           ...,
           [        nan,         nan,         nan, ...,         nan,
                    nan,  2.6543198 ],
           [        nan,         nan,         nan, ...,         nan,
                    nan,  4.040131  ],
           [        nan,         nan,         nan, ...,         nan,
                    nan,  1.7304354 ]], shape=(7500, 73), dtype=float32)

  • land_binary_mask
    (trajectory, time)
    float32
    0.0 0.0 0.0 0.0 ... nan nan nan 0.0

    minval :

    0.0

    maxval :

    0.0

    array([[ 0.,  0.,  0., ...,  0.,  0.,  0.],
           [ 0.,  0.,  0., ...,  0.,  0.,  0.],
           [ 0.,  0.,  0., ...,  0.,  0.,  0.],
           ...,
           [nan, nan, nan, ..., nan, nan,  0.],
           [nan, nan, nan, ..., nan, nan,  0.],
           [nan, nan, nan, ..., nan, nan,  0.]],
          shape=(7500, 73), dtype=float32)

  • ocean_vertical_diffusivity
    (trajectory, time)
    float32
    1e-06 1e-06 1e-06 ... nan nan 1e-06

    minval :

    1e-06

    maxval :

    0.0003771014

    array([[1.e-06, 1.e-06, 1.e-06, ..., 1.e-06, 1.e-06, 1.e-06],
           [1.e-06, 1.e-06, 1.e-06, ..., 1.e-06, 1.e-06, 1.e-06],
           [1.e-06, 1.e-06, 1.e-06, ..., 1.e-06, 1.e-06, 1.e-06],
           ...,
           [   nan,    nan,    nan, ...,    nan,    nan, 1.e-06],
           [   nan,    nan,    nan, ...,    nan,    nan, 1.e-06],
           [   nan,    nan,    nan, ...,    nan,    nan, 1.e-06]],
          shape=(7500, 73), dtype=float32)

  • ocean_mixed_layer_thickness
    (trajectory, time)
    float32
    50.0 50.0 50.0 ... nan nan 50.0

    minval :

    50.0

    maxval :

    50.0

    array([[50., 50., 50., ..., 50., 50., 50.],
           [50., 50., 50., ..., 50., 50., 50.],
           [50., 50., 50., ..., 50., 50., 50.],
           ...,
           [nan, nan, nan, ..., nan, nan, 50.],
           [nan, nan, nan, ..., nan, nan, 50.],
           [nan, nan, nan, ..., nan, nan, 50.]],
          shape=(7500, 73), dtype=float32)

  • sea_floor_depth_below_sea_level
    (trajectory, time)
    float32
    14.0 14.06 14.01 ... nan nan 14.0

    minval :

    10.0

    maxval :

    155.45471

    array([[14.000173 , 14.055781 , 14.008089 , ..., 78.69966  , 89.43046  ,
            94.068306 ],
           [14.000173 , 14.174988 , 13.9471245, ..., 36.98453  , 39.748703 ,
            42.827034 ],
           [14.000173 , 14.13782  , 13.801432 , ..., 75.82397  , 76.569595 ,
            78.3727   ],
           ...,
           [       nan,        nan,        nan, ...,        nan,        nan,
            14.000064 ],
           [       nan,        nan,        nan, ...,        nan,        nan,
            14.000064 ],
           [       nan,        nan,        nan, ...,        nan,        nan,
            14.000064 ]], shape=(7500, 73), dtype=float32)

• Attributes: (125)

  Conventions :

  CF-1.11, ACDD-1.3

  standard_name_vocabulary :

  CF Standard Name Table v85

  featureType :

  trajectory

  title :

  OpenDrift trajectory simulation

  summary :

  Output from simulation with OpenDrift framework

  keywords :

  trajectory, drift, lagrangian, simulation

  history :

  Created 2026-08-21 16:16:48.032362

  date_created :

  2026-08-21T16:16:48.032380

  source :

  Output from simulation with OpenDrift

  model_url :

  https://github.com/OpenDrift/opendrift

  opendrift_class :

  SedimentDrift

  opendrift_module :

  opendrift.models.sedimentdrift

  readers :

  odict_keys(['LazyReader: https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be', 'global_landmask'])

  time_coverage_start :

  2026-08-21 16:16:41.390198

  time_step_calculation :

  0:10:00

  time_step_output :

  0:30:00

  config_environment:constant:x_sea_water_velocity :

  None

  config_environment:fallback:x_sea_water_velocity :

  0

  config_environment:constant:y_sea_water_velocity :

  None

  config_environment:fallback:y_sea_water_velocity :

  0

  config_environment:constant:sea_surface_height :

  None

  config_environment:fallback:sea_surface_height :

  0

  config_environment:constant:upward_sea_water_velocity :

  None

  config_environment:fallback:upward_sea_water_velocity :

  0

  config_environment:constant:x_wind :

  None

  config_environment:fallback:x_wind :

  0

  config_environment:constant:y_wind :

  None

  config_environment:fallback:y_wind :

  0

  config_environment:constant:sea_surface_wave_stokes_drift_x_velocity :

  None

  config_environment:fallback:sea_surface_wave_stokes_drift_x_velocity :

  0

  config_environment:constant:sea_surface_wave_stokes_drift_y_velocity :

  None

  config_environment:fallback:sea_surface_wave_stokes_drift_y_velocity :

  0

  config_environment:constant:sea_surface_wave_period_at_variance_spectral_density_maximum :

  None

  config_environment:fallback:sea_surface_wave_period_at_variance_spectral_density_maximum :

  0

  config_environment:constant:sea_surface_wave_mean_period_from_variance_spectral_density_second_frequency_moment :

  None

  config_environment:fallback:sea_surface_wave_mean_period_from_variance_spectral_density_second_frequency_moment :

  0

  config_environment:constant:land_binary_mask :

  None

  config_environment:fallback:land_binary_mask :

  None

  config_environment:constant:ocean_vertical_diffusivity :

  None

  config_environment:fallback:ocean_vertical_diffusivity :

  0.02

  config_environment:constant:ocean_mixed_layer_thickness :

  None

  config_environment:fallback:ocean_mixed_layer_thickness :

  50

  config_environment:constant:sea_floor_depth_below_sea_level :

  None

  config_environment:fallback:sea_floor_depth_below_sea_level :

  10000

  config_general:use_auto_landmask :

  True

  config_drift:current_uncertainty :

  0.2

  config_drift:current_uncertainty_uniform :

  0

  config_drift:max_speed :

  2.0

  config_readers:max_number_of_fails :

  1

  config_general:simulation_name :

  config_general:coastline_action :

  previous

  config_general:coastline_approximation_precision :

  0.001

  config_general:time_step_minutes :

  60

  config_general:time_step_output_minutes :

  None

  config_seed:ocean_only :

  True

  config_seed:number :

  1

  config_drift:max_age_seconds :

  None

  config_drift:advection_scheme :

  euler

  config_drift:profiles_depth :

  50

  config_drift:wind_uncertainty :

  2.0

  config_drift:relative_wind :

  False

  config_drift:deactivate_north_of :

  None

  config_drift:deactivate_south_of :

  None

  config_drift:deactivate_east_of :

  None

  config_drift:deactivate_west_of :

  None

  config_seed:origin_marker :

  0

  config_seed:z :

  0

  config_seed:wind_drift_factor :

  0.02

  config_seed:current_drift_factor :

  1

  config_seed:terminal_velocity :

  -0.001

  config_seed:settled :

  0

  config_drift:vertical_advection :

  True

  config_drift:vertical_advection_at_surface :

  False

  config_drift:water_column_stretching :

  False

  config_drift:vertical_advection_correction :

  False

  config_drift:vertical_mixing :

  True

  config_drift:vertical_mixing_at_surface :

  False

  config_vertical_mixing:timestep :

  60

  config_vertical_mixing:diffusivitymodel :

  windspeed_Large1994

  config_vertical_mixing:background_diffusivity :

  1.2e-05

  config_vertical_mixing:TSprofiles :

  False

  config_drift:wind_drift_depth :

  0.1

  config_drift:stokes_drift :

  True

  config_drift:stokes_drift_profile :

  Phillips

  config_drift:use_tabularised_stokes_drift :

  False

  config_drift:tabularised_stokes_drift_fetch :

  25000

  config_general:seafloor_action :

  lift_to_seafloor

  config_drift:truncate_ocean_model_below_m :

  None

  config_seed:seafloor :

  False

  config_vertical_mixing:resuspension_threshold :

  0.2

  opendrift_version :

  1.14.10

  seed_geojson :

  {"features": [], "type": "FeatureCollection"}

  simulation_time :

  2026-08-21 16:16:48.285268

  reader_x_sea_water_velocity :

  ['https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be']

  reader_y_sea_water_velocity :

  ['https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be']

  reader_sea_surface_height :

  ['https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be']

  reader_upward_sea_water_velocity :

  ['https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be']

  reader_x_wind :

  ['https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be']

  reader_y_wind :

  ['https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be']

  reader_sea_surface_wave_stokes_drift_x_velocity :

  0

  reader_sea_surface_wave_stokes_drift_y_velocity :

  0

  reader_sea_surface_wave_period_at_variance_spectral_density_maximum :

  0

  reader_sea_surface_wave_mean_period_from_variance_spectral_density_second_frequency_moment :

  0

  reader_land_binary_mask :

  ['global_landmask']

  reader_ocean_vertical_diffusivity :

  ['https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be']

  reader_ocean_mixed_layer_thickness :

  50

  reader_sea_floor_depth_below_sea_level :

  ['https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be']

  time_coverage_end :

  2026-08-23 04:16:41.390198

  time_coverage_duration :

  P1DT12H0M0S

  time_coverage_resolution :

  P0DT0H10M0S

  performance :

  -------------------- Reader performance: -------------------- global_landmask 0:00:02.9 total 0:00:00.0 preparing 0:00:02.9 reading 0:00:00.0 masking -------------------- https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be 0:01:08.1 total 0:00:00.0 preparing 0:01:05.1 reading 0:00:08.1 interpolation 0:00:00.2 interpolation_time 0:00:02.9 rotating vectors 0:00:00.0 masking -------------------- Performance: 1:44.0 total time 6.6 configuration 0.2 preparing main loop 0.0 moving elements to ocean 1:36.9 main loop 4.6 updating elements 3.5 vertical mixing 0.1 cleaning up --------------------

  geospatial_bounds_crs :

  EPSG:4326

  geospatial_bounds_vertical_crs :

  EPSG:5831

  geospatial_lat_min :

  58.79392

  geospatial_lat_max :

  59.18378

  geospatial_lat_units :

  degrees_north

  geospatial_lat_resolution :

  point

  geospatial_lon_min :

  10.741035

  geospatial_lon_max :

  11.117093

  geospatial_lon_units :

  degrees_east

  geospatial_lon_resolution :

  point

  runtime :

  0:01:44.002170

  geospatial_vertical_min :

  0.0

  geospatial_vertical_max :

  0.0

  geospatial_vertical_positive :

  up

Plotting the depth vs time

o.plot_property('z')

Animate sediment particles colored by their depth

o.animation(color='z', fast=False, buffer=.01)
#o.animation(color='moving', fast=False, buffer=.01, colorbar=False, legend=['Sedimented', 'Moving'])

16:18:39 INFO    opendrift:4799: Saving animation to /root/project/docs/source/gallery/animations/example_sediments_0.gif...
16:19:02 INFO    opendrift:3217: Time to make animation: 0:00:33.003888