Note
Go to the end to download the full example code.
Cone seeding
09:36:22 INFO opendrift:569: OpenDriftSimulation initialised (version 1.14.11 / v1.14.12-26-g8782b63)
Using live data from Thredds
o.add_readers_from_list([
'https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be'])
Adjusting some configuration
o.set_config('processes:dispersion', True)
o.set_config('processes:evaporation', False)
o.set_config('processes:emulsification', True)
Seed elements along cone, e.g. ship track with increasing uncertainty in position
latstart = 68.988911
lonstart = 16.040701
latend = 69.991446
lonend = 17.760061
time = [datetime.utcnow(), datetime.utcnow() + timedelta(hours=12)]
o.seed_cone(lon=[lonstart, lonend], lat=[latstart, latend],
oil_type='EKOFISK', radius=[100, 800], number=10000, time=[time])
print(o)
/root/project/examples/example_cone.py:31: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
time = [datetime.utcnow(), datetime.utcnow() + timedelta(hours=12)]
09:36:22 INFO opendrift.models.basemodel.environment:203: Adding a global landmask from GSHHG
09:36:28 INFO opendrift.models.basemodel.environment:227: Fallback values will be used for the following variables which have no readers:
09:36:28 INFO opendrift.models.basemodel.environment:230: sea_surface_height: 0.000000
09:36:28 INFO opendrift.models.basemodel.environment:230: upward_sea_water_velocity: 0.000000
09:36:28 INFO opendrift.models.basemodel.environment:230: sea_surface_wave_significant_height: 0.000000
09:36:28 INFO opendrift.models.basemodel.environment:230: sea_surface_wave_stokes_drift_x_velocity: 0.000000
09:36:28 INFO opendrift.models.basemodel.environment:230: sea_surface_wave_stokes_drift_y_velocity: 0.000000
09:36:28 INFO opendrift.models.basemodel.environment:230: sea_surface_wave_period_at_variance_spectral_density_maximum: 0.000000
09:36:28 INFO opendrift.models.basemodel.environment:230: sea_surface_wave_mean_period_from_variance_spectral_density_second_frequency_moment: 0.000000
09:36:28 INFO opendrift.models.basemodel.environment:230: sea_ice_area_fraction: 0.000000
09:36:28 INFO opendrift.models.basemodel.environment:230: sea_ice_x_velocity: 0.000000
09:36:28 INFO opendrift.models.basemodel.environment:230: sea_ice_y_velocity: 0.000000
09:36:28 INFO opendrift.models.basemodel.environment:230: sea_water_temperature: 10.000000
09:36:28 INFO opendrift.models.basemodel.environment:230: sea_water_salinity: 34.000000
09:36:28 INFO opendrift.models.basemodel.environment:230: sea_floor_depth_below_sea_level: 10000.000000
09:36:28 INFO opendrift.models.basemodel.environment:230: horizontal_diffusivity: 0.000000
09:36:28 INFO opendrift.models.basemodel.environment:230: ocean_vertical_diffusivity: 0.020000
09:36:28 INFO opendrift.models.basemodel.environment:230: ocean_mixed_layer_thickness: 50.000000
09:36:28 INFO opendrift.models.openoil.adios.dirjs:86: Querying ADIOS database for oil: EKOFISK
09:36:28 WARNING opendrift.models.openoil.adios.dirjs:90: Several oils found with name: EKOFISK: ['AD00328', 'AD00329', 'AD00332', 'AD00333', 'AD01944', 'AD02094', 'AD02463', 'AD02558', 'NO00013', 'NO00014', 'NO00015', 'NO00016'], using first.
09:36:28 INFO opendrift.models.openoil.openoil:1731: Using density 809.002835 and viscosity 3.3498550728972226e-06 of oiltype EKOFISK
===========================
Model: OpenOil (OpenDrift version 1.14.11)
0 active Oil particles (0 deactivated, 10000 scheduled)
-------------------
Environment variables:
-----
land_binary_mask
1) global_landmask
-----
Readers not added for the following variables:
horizontal_diffusivity
ocean_mixed_layer_thickness
ocean_vertical_diffusivity
sea_floor_depth_below_sea_level
sea_ice_area_fraction
sea_ice_x_velocity
sea_ice_y_velocity
sea_surface_height
sea_surface_wave_mean_period_from_variance_spectral_density_second_frequency_moment
sea_surface_wave_period_at_variance_spectral_density_maximum
sea_surface_wave_significant_height
sea_surface_wave_stokes_drift_x_velocity
sea_surface_wave_stokes_drift_y_velocity
sea_water_salinity
sea_water_temperature
upward_sea_water_velocity
x_sea_water_velocity
x_wind
y_sea_water_velocity
y_wind
---
Lazy readers:
LazyReader: https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be
Discarded readers:
===========================
Running model for 24 hours
o.run(steps=24*2, time_step=1800, time_step_output=3600)
09:36:28 INFO opendrift:1910: Skipping environment variable upward_sea_water_velocity because of condition ['drift:vertical_advection', 'is', False]
09:36:28 INFO opendrift:1921: Storing previous values of element property lon because of condition (('general:coastline_action', 'in', ['stranding', 'previous']), 'or', ('general:seafloor_action', 'in', ['previous']))
09:36:28 INFO opendrift:1921: Storing previous values of element property lat because of condition (('general:coastline_action', 'in', ['stranding', 'previous']), 'or', ('general:seafloor_action', 'in', ['previous']))
09:36:28 INFO opendrift:958: Using existing reader for land_binary_mask to move elements to ocean
09:36:28 INFO opendrift:989: All points are in ocean
09:36:28 INFO opendrift.models.openoil.openoil:697: Oil-water surface tension is 0.027884 Nm
09:36:28 INFO opendrift.models.openoil.openoil:710: Max water fraction not available for EKOFISK, using default
09:36:28 INFO opendrift:2237: 2026-09-28 09:36:22.603524 - step 1 of 48 - 417 active elements (0 deactivated)
09:36:28 INFO opendrift.readers:67: Opening file with xr.open_dataset
09:36:33 INFO opendrift.readers.reader_netCDF_CF_generic:340: Detected dimensions: {'x': 'X', 'y': 'Y', 'z': 'depth', 'time': 'time'}
09:36:33 INFO opendrift.readers.basereader:175: Variable x_sea_water_velocity will be rotated from eastward_sea_water_velocity
09:36:33 INFO opendrift.readers.basereader:175: Variable y_sea_water_velocity will be rotated from northward_sea_water_velocity
09:36:33 INFO opendrift.readers.basereader:175: Variable x_wind will be rotated from eastward_wind
09:36:33 INFO opendrift.readers.basereader:175: Variable y_wind will be rotated from northward_wind
09:36:40 INFO opendrift:2237: 2026-09-28 10:06:22.603524 - step 2 of 48 - 834 active elements (0 deactivated)
09:36:42 INFO opendrift:2237: 2026-09-28 10:36:22.603524 - step 3 of 48 - 1250 active elements (0 deactivated)
09:36:42 WARNING opendrift.readers.basereader.structured:324: Data block from https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be not large enough to cover element positions within timestep. Buffer size (8) must be increased. See `Variables.set_buffer_size`.
09:36:42 INFO opendrift:2237: 2026-09-28 11:06:22.603524 - step 4 of 48 - 1667 active elements (0 deactivated)
09:36:45 WARNING opendrift.readers.basereader.structured:324: Data block from https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be not large enough to cover element positions within timestep. Buffer size (8) must be increased. See `Variables.set_buffer_size`.
09:36:45 INFO opendrift:2237: 2026-09-28 11:36:22.603524 - step 5 of 48 - 2084 active elements (0 deactivated)
09:36:45 WARNING opendrift.readers.basereader.structured:324: Data block from https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be not large enough to cover element positions within timestep. Buffer size (8) must be increased. See `Variables.set_buffer_size`.
09:36:45 INFO opendrift:2237: 2026-09-28 12:06:22.603524 - step 6 of 48 - 2500 active elements (0 deactivated)
09:36:47 WARNING opendrift.readers.basereader.structured:324: Data block from https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be not large enough to cover element positions within timestep. Buffer size (8) must be increased. See `Variables.set_buffer_size`.
09:36:48 INFO opendrift:2237: 2026-09-28 12:36:22.603524 - step 7 of 48 - 2917 active elements (0 deactivated)
09:36:48 WARNING opendrift.readers.basereader.structured:324: Data block from https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be not large enough to cover element positions within timestep. Buffer size (8) must be increased. See `Variables.set_buffer_size`.
09:36:48 INFO opendrift:2237: 2026-09-28 13:06:22.603524 - step 8 of 48 - 3334 active elements (0 deactivated)
09:36:53 WARNING opendrift.readers.basereader.structured:324: Data block from https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be not large enough to cover element positions within timestep. Buffer size (8) must be increased. See `Variables.set_buffer_size`.
09:36:53 INFO opendrift:2237: 2026-09-28 13:36:22.603524 - step 9 of 48 - 3750 active elements (0 deactivated)
09:36:53 WARNING opendrift.readers.basereader.structured:324: Data block from https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be not large enough to cover element positions within timestep. Buffer size (8) must be increased. See `Variables.set_buffer_size`.
09:36:53 INFO opendrift:2237: 2026-09-28 14:06:22.603524 - step 10 of 48 - 4167 active elements (0 deactivated)
09:36:58 WARNING opendrift.readers.basereader.structured:324: Data block from https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be not large enough to cover element positions within timestep. Buffer size (8) must be increased. See `Variables.set_buffer_size`.
09:36:58 INFO opendrift:2237: 2026-09-28 14:36:22.603524 - step 11 of 48 - 4583 active elements (0 deactivated)
09:36:58 WARNING opendrift.readers.basereader.structured:324: Data block from https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be not large enough to cover element positions within timestep. Buffer size (8) must be increased. See `Variables.set_buffer_size`.
09:36:58 INFO opendrift:2237: 2026-09-28 15:06:22.603524 - step 12 of 48 - 5000 active elements (0 deactivated)
09:37:07 WARNING opendrift.readers.basereader.structured:324: Data block from https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be not large enough to cover element positions within timestep. Buffer size (8) must be increased. See `Variables.set_buffer_size`.
09:37:07 INFO opendrift:2237: 2026-09-28 15:36:22.603524 - step 13 of 48 - 5417 active elements (0 deactivated)
09:37:07 WARNING opendrift.readers.basereader.structured:324: Data block from https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be not large enough to cover element positions within timestep. Buffer size (8) must be increased. See `Variables.set_buffer_size`.
09:37:08 INFO opendrift:2237: 2026-09-28 16:06:22.603524 - step 14 of 48 - 5833 active elements (0 deactivated)
09:37:15 WARNING opendrift.readers.basereader.structured:324: Data block from https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be not large enough to cover element positions within timestep. Buffer size (8) must be increased. See `Variables.set_buffer_size`.
09:37:16 INFO opendrift:2237: 2026-09-28 16:36:22.603524 - step 15 of 48 - 6250 active elements (0 deactivated)
09:37:16 WARNING opendrift.readers.basereader.structured:324: Data block from https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be not large enough to cover element positions within timestep. Buffer size (8) must be increased. See `Variables.set_buffer_size`.
09:37:16 INFO opendrift:2237: 2026-09-28 17:06:22.603524 - step 16 of 48 - 6667 active elements (0 deactivated)
09:37:23 WARNING opendrift.readers.basereader.structured:324: Data block from https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be not large enough to cover element positions within timestep. Buffer size (8) must be increased. See `Variables.set_buffer_size`.
09:37:24 INFO opendrift:2237: 2026-09-28 17:36:22.603524 - step 17 of 48 - 7083 active elements (0 deactivated)
09:37:24 WARNING opendrift.readers.basereader.structured:324: Data block from https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be not large enough to cover element positions within timestep. Buffer size (8) must be increased. See `Variables.set_buffer_size`.
09:37:24 INFO opendrift:2237: 2026-09-28 18:06:22.603524 - step 18 of 48 - 7500 active elements (0 deactivated)
09:37:40 WARNING opendrift.readers.basereader.structured:324: Data block from https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be not large enough to cover element positions within timestep. Buffer size (8) must be increased. See `Variables.set_buffer_size`.
09:37:40 INFO opendrift:2237: 2026-09-28 18:36:22.603524 - step 19 of 48 - 7916 active elements (0 deactivated)
09:37:40 WARNING opendrift.readers.basereader.structured:324: Data block from https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be not large enough to cover element positions within timestep. Buffer size (8) must be increased. See `Variables.set_buffer_size`.
09:37:41 INFO opendrift:2237: 2026-09-28 19:06:22.603524 - step 20 of 48 - 8333 active elements (0 deactivated)
09:37:46 WARNING opendrift.readers.basereader.structured:324: Data block from https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be not large enough to cover element positions within timestep. Buffer size (8) must be increased. See `Variables.set_buffer_size`.
09:37:46 INFO opendrift:2237: 2026-09-28 19:36:22.603524 - step 21 of 48 - 8750 active elements (0 deactivated)
09:37:46 WARNING opendrift.readers.basereader.structured:324: Data block from https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be not large enough to cover element positions within timestep. Buffer size (8) must be increased. See `Variables.set_buffer_size`.
09:37:47 INFO opendrift:2237: 2026-09-28 20:06:22.603524 - step 22 of 48 - 9165 active elements (1 deactivated)
09:37:53 WARNING opendrift.readers.basereader.structured:324: Data block from https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be not large enough to cover element positions within timestep. Buffer size (8) must be increased. See `Variables.set_buffer_size`.
09:37:53 INFO opendrift:2237: 2026-09-28 20:36:22.603524 - step 23 of 48 - 9581 active elements (2 deactivated)
09:37:53 WARNING opendrift.readers.basereader.structured:324: Data block from https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be not large enough to cover element positions within timestep. Buffer size (8) must be increased. See `Variables.set_buffer_size`.
09:37:53 INFO opendrift:2237: 2026-09-28 21:06:22.603524 - step 24 of 48 - 9997 active elements (3 deactivated)
09:37:59 WARNING opendrift.readers.basereader.variables:660: Invalid values (1.0539654 to 1.143518) found for ocean_vertical_diffusivity, replacing with NaN
09:37:59 WARNING opendrift.readers.basereader.variables:663: (allowed range: [0, 1])
09:37:59 WARNING opendrift.readers.basereader.structured:324: Data block from https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be not large enough to cover element positions within timestep. Buffer size (8) must be increased. See `Variables.set_buffer_size`.
09:38:00 INFO opendrift:2237: 2026-09-28 21:36:22.603524 - step 25 of 48 - 9997 active elements (3 deactivated)
09:38:00 WARNING opendrift.readers.basereader.structured:324: Data block from https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be not large enough to cover element positions within timestep. Buffer size (8) must be increased. See `Variables.set_buffer_size`.
09:38:00 INFO opendrift:2237: 2026-09-28 22:06:22.603524 - step 26 of 48 - 9995 active elements (5 deactivated)
09:38:10 WARNING opendrift.readers.basereader.variables:660: Invalid values (1.0521182 to 1.1016618) found for ocean_vertical_diffusivity, replacing with NaN
09:38:10 WARNING opendrift.readers.basereader.variables:663: (allowed range: [0, 1])
09:38:10 INFO opendrift:2237: 2026-09-28 22:36:22.603524 - step 27 of 48 - 9992 active elements (8 deactivated)
09:38:11 INFO opendrift:2237: 2026-09-28 23:06:22.603524 - step 28 of 48 - 9985 active elements (15 deactivated)
09:38:21 INFO opendrift:2237: 2026-09-28 23:36:22.603524 - step 29 of 48 - 9972 active elements (28 deactivated)
09:38:21 INFO opendrift:2237: 2026-09-29 00:06:22.603524 - step 30 of 48 - 9961 active elements (39 deactivated)
09:38:27 WARNING opendrift.readers.basereader.variables:660: Invalid values (1.174881 to 1.2497468) found for ocean_vertical_diffusivity, replacing with NaN
09:38:27 WARNING opendrift.readers.basereader.variables:663: (allowed range: [0, 1])
09:38:28 INFO opendrift:2237: 2026-09-29 00:36:22.603524 - step 31 of 48 - 9947 active elements (53 deactivated)
09:38:28 INFO opendrift:2237: 2026-09-29 01:06:22.603524 - step 32 of 48 - 9933 active elements (67 deactivated)
09:38:36 WARNING opendrift.readers.basereader.variables:660: Invalid values (1.0476741 to 1.3844928) found for ocean_vertical_diffusivity, replacing with NaN
09:38:36 WARNING opendrift.readers.basereader.variables:663: (allowed range: [0, 1])
09:38:36 INFO opendrift:2237: 2026-09-29 01:36:22.603524 - step 33 of 48 - 9925 active elements (75 deactivated)
09:38:37 INFO opendrift:2237: 2026-09-29 02:06:22.603524 - step 34 of 48 - 9918 active elements (82 deactivated)
09:38:42 WARNING opendrift.readers.basereader.variables:660: Invalid values (1.035977 to 1.2666192) found for ocean_vertical_diffusivity, replacing with NaN
09:38:42 WARNING opendrift.readers.basereader.variables:663: (allowed range: [0, 1])
09:38:42 INFO opendrift:2237: 2026-09-29 02:36:22.603524 - step 35 of 48 - 9909 active elements (91 deactivated)
09:38:43 INFO opendrift:2237: 2026-09-29 03:06:22.603524 - step 36 of 48 - 9894 active elements (106 deactivated)
09:38:52 WARNING opendrift.readers.basereader.variables:660: Invalid values (1.0212511 to 1.2185825) found for ocean_vertical_diffusivity, replacing with NaN
09:38:52 WARNING opendrift.readers.basereader.variables:663: (allowed range: [0, 1])
09:38:52 INFO opendrift:2237: 2026-09-29 03:36:22.603524 - step 37 of 48 - 9880 active elements (120 deactivated)
09:38:53 INFO opendrift:2237: 2026-09-29 04:06:22.603524 - step 38 of 48 - 9872 active elements (128 deactivated)
09:38:59 WARNING opendrift.readers.basereader.variables:660: Invalid values (1.0490582 to 1.6680262) found for ocean_vertical_diffusivity, replacing with NaN
09:38:59 WARNING opendrift.readers.basereader.variables:663: (allowed range: [0, 1])
09:38:59 INFO opendrift:2237: 2026-09-29 04:36:22.603524 - step 39 of 48 - 9854 active elements (146 deactivated)
09:39:00 INFO opendrift:2237: 2026-09-29 05:06:22.603524 - step 40 of 48 - 9840 active elements (160 deactivated)
09:39:04 WARNING opendrift.readers.basereader.variables:660: Invalid values (1.0174676 to 1.4030722) found for ocean_vertical_diffusivity, replacing with NaN
09:39:04 WARNING opendrift.readers.basereader.variables:663: (allowed range: [0, 1])
09:39:04 INFO opendrift:2237: 2026-09-29 05:36:22.603524 - step 41 of 48 - 9826 active elements (174 deactivated)
09:39:05 INFO opendrift:2237: 2026-09-29 06:06:22.603524 - step 42 of 48 - 9815 active elements (185 deactivated)
09:39:10 WARNING opendrift.readers.basereader.variables:660: Invalid values (1.0082215 to 1.4694134) found for ocean_vertical_diffusivity, replacing with NaN
09:39:10 WARNING opendrift.readers.basereader.variables:663: (allowed range: [0, 1])
09:39:10 INFO opendrift:2237: 2026-09-29 06:36:22.603524 - step 43 of 48 - 9799 active elements (201 deactivated)
09:39:11 INFO opendrift:2237: 2026-09-29 07:06:22.603524 - step 44 of 48 - 9778 active elements (222 deactivated)
09:39:18 WARNING opendrift.readers.basereader.variables:660: Invalid values (1.0033765 to 1.4878113) found for ocean_vertical_diffusivity, replacing with NaN
09:39:18 WARNING opendrift.readers.basereader.variables:663: (allowed range: [0, 1])
09:39:18 INFO opendrift:2237: 2026-09-29 07:36:22.603524 - step 45 of 48 - 9768 active elements (232 deactivated)
09:39:19 INFO opendrift:2237: 2026-09-29 08:06:22.603524 - step 46 of 48 - 9756 active elements (244 deactivated)
09:39:24 WARNING opendrift.readers.basereader.variables:660: Invalid values (1.0030805 to 1.2451701) found for ocean_vertical_diffusivity, replacing with NaN
09:39:24 WARNING opendrift.readers.basereader.variables:663: (allowed range: [0, 1])
09:39:24 INFO opendrift:2237: 2026-09-29 08:36:22.603524 - step 47 of 48 - 9742 active elements (258 deactivated)
09:39:25 INFO opendrift:2237: 2026-09-29 09:06:22.603524 - step 48 of 48 - 9730 active elements (270 deactivated)
09:39:29 WARNING opendrift.readers.basereader.variables:660: Invalid values (1.0321808 to 1.0326179) found for ocean_vertical_diffusivity, replacing with NaN
09:39:29 WARNING opendrift.readers.basereader.variables:663: (allowed range: [0, 1])
Print and plot results
print(o)
===========================
--------------------
Reader performance:
--------------------
global_landmask
0:00:00.0 total
0:00:00.0 preparing
0:00:00.0 reading
0:00:00.0 masking
--------------------
https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be
0:02:46.4 total
0:00:00.0 preparing
0:02:45.2 reading
0:00:05.6 interpolation
0:00:00.1 interpolation_time
0:00:01.2 rotating vectors
0:00:00.0 masking
--------------------
Performance:
3:07.4 total time
6.2 configuration
0.1 preparing main loop
0.0 moving elements to ocean
3:01.0 main loop
5.9 updating elements
0.0 oil weathering
0.0 updating viscosities
0.0 updating densities
0.0 emulsification
0.0 dispersion
5.2 vertical mixing
0.0 cleaning up
--------------------
===========================
Model: OpenOil (OpenDrift version 1.14.11)
9698 active Oil particles (302 deactivated, 0 scheduled)
-------------------
Environment variables:
-----
land_binary_mask
1) global_landmask
-----
ocean_vertical_diffusivity
sea_floor_depth_below_sea_level
sea_surface_height
sea_water_salinity
sea_water_temperature
x_sea_water_velocity
x_wind
y_sea_water_velocity
y_wind
1) https://thredds.met.no/thredds/dodsC/fou-hi/norkystv3_800m_m00_be
-----
Readers not added for the following variables:
horizontal_diffusivity
ocean_mixed_layer_thickness
sea_ice_area_fraction
sea_ice_x_velocity
sea_ice_y_velocity
sea_surface_wave_mean_period_from_variance_spectral_density_second_frequency_moment
sea_surface_wave_period_at_variance_spectral_density_maximum
sea_surface_wave_significant_height
sea_surface_wave_stokes_drift_x_velocity
sea_surface_wave_stokes_drift_y_velocity
Discarded readers:
Time:
Start: 2026-09-28 09:36:22.603524 UTC
Present: 2026-09-29 09:36:22.603524 UTC
Calculation steps: 48 * 0:30:00 - total time: 1 day, 0:00:00
Output steps: 25 * 1:00:00
===========================
Add text label on the map
text = [{'s': 'Senja', 'x': 17.3, 'y': 69.3, 'fontsize': 20, 'color': 'g',
'backgroundcolor': 'white', 'bbox': dict(facecolor='white', alpha=0.8), 'zorder': 1000}]
o.animation(fast=False, ocean_color='skyblue', land_color='burlywood', text=text)
09:39:45 INFO opendrift:4823: Saving animation to /root/project/docs/source/gallery/animations/example_cone_0.gif...
09:39:56 INFO opendrift:3241: Time to make animation: 0:00:25.848727
o.plot(fast=True, ocean_color='skyblue', land_color='dimgray', text=text)
09:39:56 WARNING opendrift:2613: Plotting fast. This will make your plots less accurate.
(<GeoAxes: title={'center': 'OpenDrift - OpenOil (EKOFISK)\n2026-09-28 09:36 to 2026-09-29 09:36 UTC (25 steps)'}>, <Figure size 755.579x1100 with 1 Axes>)
Total running time of the script: (4 minutes 5.524 seconds)