Note

Go to the end to download the full example code.

Oil in ice

from datetime import datetime, timedelta
from opendrift.readers import reader_netCDF_CF_generic
from opendrift.models.openoil import OpenOil
import cmocean

o = OpenOil(loglevel=20)

08:57:04 INFO    opendrift:513: OpenDriftSimulation initialised (version 1.14.2 / v1.14.2-108-gbbc988b)

Using live data from Barents 2.5 km ocean model

o.add_readers_from_list(['https://thredds.met.no/thredds/dodsC/fou-hi/barents_eps_zdepth_be'])

Adjusting some configuration

o.set_config('processes:dispersion',  False)
o.set_config('processes:evaporation',  False)
o.set_config('processes:emulsification',  False)
o.set_config('drift:horizontal_diffusivity', 10)
o.set_config('drift:truncate_ocean_model_below_m', 3)

Imaginary oil spill in Hinlopen strait

o.seed_elements(lon=19.1909, lat=79.5986, radius=50,
                number=3000, time=datetime.now() - timedelta(days=7))

08:57:04 INFO    opendrift.models.openoil.openoil:1708: Oil type not specified, using default: GENERIC BUNKER C
08:57:04 INFO    opendrift.models.openoil.adios.dirjs:86: Querying ADIOS database for oil: GENERIC BUNKER C
08:57:04 INFO    opendrift.models.openoil.openoil:1717: Using density 988.1 and viscosity 0.02169233387797564 of oiltype GENERIC BUNKER C
08:57:04 INFO    opendrift.models.basemodel.environment:206: Adding a global landmask from GSHHG
08:57:08 INFO    opendrift.models.basemodel.environment:229: Fallback values will be used for the following variables which have no readers:
08:57:08 INFO    opendrift.models.basemodel.environment:232:    sea_surface_height: 0.000000
08:57:08 INFO    opendrift.models.basemodel.environment:232:    upward_sea_water_velocity: 0.000000
08:57:08 INFO    opendrift.models.basemodel.environment:232:    sea_surface_wave_significant_height: 0.000000
08:57:08 INFO    opendrift.models.basemodel.environment:232:    sea_surface_wave_stokes_drift_x_velocity: 0.000000
08:57:08 INFO    opendrift.models.basemodel.environment:232:    sea_surface_wave_stokes_drift_y_velocity: 0.000000
08:57:08 INFO    opendrift.models.basemodel.environment:232:    sea_surface_wave_period_at_variance_spectral_density_maximum: 0.000000
08:57:08 INFO    opendrift.models.basemodel.environment:232:    sea_surface_wave_mean_period_from_variance_spectral_density_second_frequency_moment: 0.000000
08:57:08 INFO    opendrift.models.basemodel.environment:232:    sea_ice_area_fraction: 0.000000
08:57:08 INFO    opendrift.models.basemodel.environment:232:    sea_ice_x_velocity: 0.000000
08:57:08 INFO    opendrift.models.basemodel.environment:232:    sea_ice_y_velocity: 0.000000
08:57:08 INFO    opendrift.models.basemodel.environment:232:    sea_water_temperature: 10.000000
08:57:08 INFO    opendrift.models.basemodel.environment:232:    sea_water_salinity: 34.000000
08:57:08 INFO    opendrift.models.basemodel.environment:232:    sea_floor_depth_below_sea_level: 10000.000000
08:57:08 INFO    opendrift.models.basemodel.environment:232:    ocean_vertical_diffusivity: 0.020000
08:57:08 INFO    opendrift.models.basemodel.environment:232:    ocean_mixed_layer_thickness: 50.000000

Running model

o.run(duration=timedelta(hours=48), time_step=1800, time_step_output=3600)

08:57:08 INFO    opendrift:1733: Skipping environment variable upward_sea_water_velocity because of condition ['drift:vertical_advection', 'is', False]
08:57:08 INFO    opendrift:1744: Storing previous values of element property lon because of condition (('general:coastline_action', 'in', ['stranding', 'previous']), 'or', ('general:seafloor_action', 'in', ['previous']))
08:57:08 INFO    opendrift:1744: Storing previous values of element property lat because of condition (('general:coastline_action', 'in', ['stranding', 'previous']), 'or', ('general:seafloor_action', 'in', ['previous']))
08:57:08 INFO    opendrift:899: Using existing reader for land_binary_mask to move elements to ocean
08:57:08 INFO    opendrift:929: All points are in ocean
08:57:08 INFO    opendrift.models.openoil.openoil:692: Oil-water surface tension is 0.035935 Nm
08:57:08 INFO    opendrift.models.openoil.openoil:705: Max water fraction not available for GENERIC BUNKER C, using default
08:57:08 INFO    opendrift:2036: 2025-08-06 08:57:04.212895 - step 1 of 96 - 3000 active elements (0 deactivated)
08:57:08 INFO    opendrift.readers:61: Opening file with xr.open_dataset
08:57:09 INFO    opendrift.readers.reader_netCDF_CF_generic:332: Detected dimensions: {'x': 'X', 'y': 'Y', 'z': 'depth', 'time': 'time'}
08:57:09 INFO    opendrift.readers.basereader:176: Variable x_sea_water_velocity will be rotated from eastward_sea_water_velocity
08:57:09 INFO    opendrift.readers.basereader:176: Variable y_sea_water_velocity will be rotated from northward_sea_water_velocity
08:57:12 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.016148698 to -0.00032704617) found for ocean_vertical_diffusivity, replacing with NaN
08:57:12 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:57:15 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.016065203 to -0.00081120885) found for ocean_vertical_diffusivity, replacing with NaN
08:57:15 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:57:15 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:15 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:15 INFO    opendrift:2036: 2025-08-06 09:27:04.212895 - step 2 of 96 - 3000 active elements (0 deactivated)
08:57:18 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.017215503 to -0.0024862103) found for ocean_vertical_diffusivity, replacing with NaN
08:57:18 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:57:18 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:18 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:18 INFO    opendrift:2036: 2025-08-06 09:57:04.212895 - step 3 of 96 - 3000 active elements (0 deactivated)
08:57:18 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:18 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:18 INFO    opendrift:2036: 2025-08-06 10:27:04.212895 - step 4 of 96 - 3000 active elements (0 deactivated)
08:57:20 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.018945655 to -0.0019733831) found for ocean_vertical_diffusivity, replacing with NaN
08:57:20 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:57:20 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:20 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:21 INFO    opendrift:2036: 2025-08-06 10:57:04.212895 - step 5 of 96 - 3000 active elements (0 deactivated)
08:57:21 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:21 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:21 INFO    opendrift:2036: 2025-08-06 11:27:04.212895 - step 6 of 96 - 3000 active elements (0 deactivated)
08:57:23 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.016517106 to -0.0006199039) found for ocean_vertical_diffusivity, replacing with NaN
08:57:23 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:57:23 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:23 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:23 INFO    opendrift:2036: 2025-08-06 11:57:04.212895 - step 7 of 96 - 3000 active elements (0 deactivated)
08:57:23 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:23 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:23 INFO    opendrift:2036: 2025-08-06 12:27:04.212895 - step 8 of 96 - 3000 active elements (0 deactivated)
08:57:26 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.014282178 to -0.00057827786) found for ocean_vertical_diffusivity, replacing with NaN
08:57:26 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:57:26 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:26 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:26 INFO    opendrift:2036: 2025-08-06 12:57:04.212895 - step 9 of 96 - 3000 active elements (0 deactivated)
08:57:26 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:26 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:26 INFO    opendrift:2036: 2025-08-06 13:27:04.212895 - step 10 of 96 - 3000 active elements (0 deactivated)
08:57:29 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.013504112 to -0.00053229096) found for ocean_vertical_diffusivity, replacing with NaN
08:57:29 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:57:29 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:29 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:29 INFO    opendrift:2036: 2025-08-06 13:57:04.212895 - step 11 of 96 - 3000 active elements (0 deactivated)
08:57:29 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:29 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:29 INFO    opendrift:2036: 2025-08-06 14:27:04.212895 - step 12 of 96 - 3000 active elements (0 deactivated)
08:57:32 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.018100686 to -0.002114265) found for ocean_vertical_diffusivity, replacing with NaN
08:57:32 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:57:32 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:32 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:32 INFO    opendrift:2036: 2025-08-06 14:57:04.212895 - step 13 of 96 - 3000 active elements (0 deactivated)
08:57:32 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:32 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:32 INFO    opendrift:2036: 2025-08-06 15:27:04.212895 - step 14 of 96 - 3000 active elements (0 deactivated)
08:57:34 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.024553899 to -0.0010762558) found for ocean_vertical_diffusivity, replacing with NaN
08:57:34 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:57:34 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:34 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:35 INFO    opendrift:2036: 2025-08-06 15:57:04.212895 - step 15 of 96 - 3000 active elements (0 deactivated)
08:57:35 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:35 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:35 INFO    opendrift:2036: 2025-08-06 16:27:04.212895 - step 16 of 96 - 3000 active elements (0 deactivated)
08:57:37 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.028397148 to -0.0016043582) found for ocean_vertical_diffusivity, replacing with NaN
08:57:37 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:57:37 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:37 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:37 INFO    opendrift:2036: 2025-08-06 16:57:04.212895 - step 17 of 96 - 3000 active elements (0 deactivated)
08:57:37 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:37 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:38 INFO    opendrift:2036: 2025-08-06 17:27:04.212895 - step 18 of 96 - 3000 active elements (0 deactivated)
08:57:42 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.027503885 to -0.0032565126) found for ocean_vertical_diffusivity, replacing with NaN
08:57:42 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:57:42 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:42 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:42 INFO    opendrift:2036: 2025-08-06 17:57:04.212895 - step 19 of 96 - 3000 active elements (0 deactivated)
08:57:42 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:42 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:43 INFO    opendrift:2036: 2025-08-06 18:27:04.212895 - step 20 of 96 - 2996 active elements (4 deactivated)
08:57:46 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.023534477 to -0.0019274944) found for ocean_vertical_diffusivity, replacing with NaN
08:57:46 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:57:46 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:46 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:46 INFO    opendrift:2036: 2025-08-06 18:57:04.212895 - step 21 of 96 - 2973 active elements (27 deactivated)
08:57:46 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:46 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:46 INFO    opendrift:2036: 2025-08-06 19:27:04.212895 - step 22 of 96 - 2893 active elements (107 deactivated)
08:57:49 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.021731775 to -0.0015533515) found for ocean_vertical_diffusivity, replacing with NaN
08:57:49 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:57:49 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:49 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:49 INFO    opendrift:2036: 2025-08-06 19:57:04.212895 - step 23 of 96 - 2708 active elements (292 deactivated)
08:57:49 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:49 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:49 INFO    opendrift:2036: 2025-08-06 20:27:04.212895 - step 24 of 96 - 2403 active elements (597 deactivated)
08:57:52 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.021699492 to -0.0041810498) found for ocean_vertical_diffusivity, replacing with NaN
08:57:52 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:57:52 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:52 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:52 INFO    opendrift:2036: 2025-08-06 20:57:04.212895 - step 25 of 96 - 1952 active elements (1048 deactivated)
08:57:52 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:52 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:53 INFO    opendrift:2036: 2025-08-06 21:27:04.212895 - step 26 of 96 - 1541 active elements (1459 deactivated)
08:57:55 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.022010798 to -0.0022287802) found for ocean_vertical_diffusivity, replacing with NaN
08:57:55 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:57:55 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:55 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:55 INFO    opendrift:2036: 2025-08-06 21:57:04.212895 - step 27 of 96 - 1184 active elements (1816 deactivated)
08:57:55 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:55 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:56 INFO    opendrift:2036: 2025-08-06 22:27:04.212895 - step 28 of 96 - 891 active elements (2109 deactivated)
08:57:58 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.018362343 to -0.00079861237) found for ocean_vertical_diffusivity, replacing with NaN
08:57:58 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:57:58 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:58 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:58 INFO    opendrift:2036: 2025-08-06 22:57:04.212895 - step 29 of 96 - 681 active elements (2319 deactivated)
08:57:58 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:58 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:57:59 INFO    opendrift:2036: 2025-08-06 23:27:04.212895 - step 30 of 96 - 478 active elements (2522 deactivated)
08:58:01 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.013043016 to -0.0005319863) found for ocean_vertical_diffusivity, replacing with NaN
08:58:01 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:58:01 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:01 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:01 INFO    opendrift:2036: 2025-08-06 23:57:04.212895 - step 31 of 96 - 342 active elements (2658 deactivated)
08:58:01 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:01 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:01 INFO    opendrift:2036: 2025-08-07 00:27:04.212895 - step 32 of 96 - 237 active elements (2763 deactivated)
08:58:03 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.009864731 to -0.0003125321) found for ocean_vertical_diffusivity, replacing with NaN
08:58:03 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:58:03 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:03 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:03 INFO    opendrift:2036: 2025-08-07 00:57:04.212895 - step 33 of 96 - 160 active elements (2840 deactivated)
08:58:03 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:03 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:03 INFO    opendrift:2036: 2025-08-07 01:27:04.212895 - step 34 of 96 - 123 active elements (2877 deactivated)
08:58:05 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.0074160066 to -0.00020955713) found for ocean_vertical_diffusivity, replacing with NaN
08:58:05 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:58:05 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:05 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:05 INFO    opendrift:2036: 2025-08-07 01:57:04.212895 - step 35 of 96 - 94 active elements (2906 deactivated)
08:58:05 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:05 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:06 INFO    opendrift:2036: 2025-08-07 02:27:04.212895 - step 36 of 96 - 77 active elements (2923 deactivated)
08:58:08 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.010248975 to -0.0003691109) found for ocean_vertical_diffusivity, replacing with NaN
08:58:08 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:58:08 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:08 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:08 INFO    opendrift:2036: 2025-08-07 02:57:04.212895 - step 37 of 96 - 67 active elements (2933 deactivated)
08:58:08 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:08 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:08 INFO    opendrift:2036: 2025-08-07 03:27:04.212895 - step 38 of 96 - 57 active elements (2943 deactivated)
08:58:10 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.016675714 to -0.00035966275) found for ocean_vertical_diffusivity, replacing with NaN
08:58:10 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:58:10 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:10 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:10 INFO    opendrift:2036: 2025-08-07 03:57:04.212895 - step 39 of 96 - 46 active elements (2954 deactivated)
08:58:10 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:10 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:10 INFO    opendrift:2036: 2025-08-07 04:27:04.212895 - step 40 of 96 - 39 active elements (2961 deactivated)
08:58:12 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.020970896 to -0.0009579194) found for ocean_vertical_diffusivity, replacing with NaN
08:58:12 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:58:12 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:12 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:12 INFO    opendrift:2036: 2025-08-07 04:57:04.212895 - step 41 of 96 - 34 active elements (2966 deactivated)
08:58:12 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:12 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:12 INFO    opendrift:2036: 2025-08-07 05:27:04.212895 - step 42 of 96 - 31 active elements (2969 deactivated)
08:58:14 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.017842514 to -0.00019257436) found for ocean_vertical_diffusivity, replacing with NaN
08:58:14 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:58:14 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:14 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:14 INFO    opendrift:2036: 2025-08-07 05:57:04.212895 - step 43 of 96 - 28 active elements (2972 deactivated)
08:58:14 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:14 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:14 INFO    opendrift:2036: 2025-08-07 06:27:04.212895 - step 44 of 96 - 24 active elements (2976 deactivated)
08:58:16 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.014626593 to -4.8852202e-05) found for ocean_vertical_diffusivity, replacing with NaN
08:58:16 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:58:16 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:16 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:16 INFO    opendrift:2036: 2025-08-07 06:57:04.212895 - step 45 of 96 - 22 active elements (2978 deactivated)
08:58:16 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:16 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:17 INFO    opendrift:2036: 2025-08-07 07:27:04.212895 - step 46 of 96 - 22 active elements (2978 deactivated)
08:58:19 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.012998667 to -2.7352253e-06) found for ocean_vertical_diffusivity, replacing with NaN
08:58:19 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:58:19 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:19 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:19 INFO    opendrift:2036: 2025-08-07 07:57:04.212895 - step 47 of 96 - 22 active elements (2978 deactivated)
08:58:19 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:19 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:19 INFO    opendrift:2036: 2025-08-07 08:27:04.212895 - step 48 of 96 - 21 active elements (2979 deactivated)
08:58:21 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.012333742 to -4.716196e-06) found for ocean_vertical_diffusivity, replacing with NaN
08:58:21 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:58:21 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:21 WARNING opendrift.readers.interpolation.interpolators:129: Still NaN-values after 10 iterations, exiting!
08:58:21 INFO    opendrift:2036: 2025-08-07 08:57:04.212895 - step 49 of 96 - 19 active elements (2981 deactivated)
08:58:21 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:21 INFO    opendrift:2036: 2025-08-07 09:27:04.212895 - step 50 of 96 - 19 active elements (2981 deactivated)
08:58:23 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.009847992 to -1.2395809e-05) found for ocean_vertical_diffusivity, replacing with NaN
08:58:23 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:58:23 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:23 INFO    opendrift:2036: 2025-08-07 09:57:04.212895 - step 51 of 96 - 19 active elements (2981 deactivated)
08:58:23 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:23 INFO    opendrift:2036: 2025-08-07 10:27:04.212895 - step 52 of 96 - 19 active elements (2981 deactivated)
08:58:25 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.0096881855 to -0.00023057644) found for ocean_vertical_diffusivity, replacing with NaN
08:58:25 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:58:25 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:25 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:25 INFO    opendrift:2036: 2025-08-07 10:57:04.212895 - step 53 of 96 - 19 active elements (2981 deactivated)
08:58:25 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:25 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:25 INFO    opendrift:2036: 2025-08-07 11:27:04.212895 - step 54 of 96 - 19 active elements (2981 deactivated)
08:58:27 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.008629868 to -0.00053288735) found for ocean_vertical_diffusivity, replacing with NaN
08:58:27 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:58:27 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:28 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:28 INFO    opendrift:2036: 2025-08-07 11:57:04.212895 - step 55 of 96 - 19 active elements (2981 deactivated)
08:58:28 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:28 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:28 INFO    opendrift:2036: 2025-08-07 12:27:04.212895 - step 56 of 96 - 19 active elements (2981 deactivated)
08:58:30 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.0062039206 to -0.0011900872) found for ocean_vertical_diffusivity, replacing with NaN
08:58:30 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:58:30 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:30 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:30 INFO    opendrift:2036: 2025-08-07 12:57:04.212895 - step 57 of 96 - 19 active elements (2981 deactivated)
08:58:30 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:30 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:30 INFO    opendrift:2036: 2025-08-07 13:27:04.212895 - step 58 of 96 - 19 active elements (2981 deactivated)
08:58:32 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.005490996 to -0.00075540005) found for ocean_vertical_diffusivity, replacing with NaN
08:58:32 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:58:32 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:32 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:32 INFO    opendrift:2036: 2025-08-07 13:57:04.212895 - step 59 of 96 - 19 active elements (2981 deactivated)
08:58:32 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:32 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:32 INFO    opendrift:2036: 2025-08-07 14:27:04.212895 - step 60 of 96 - 19 active elements (2981 deactivated)
08:58:34 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.008496529 to -0.0006353066) found for ocean_vertical_diffusivity, replacing with NaN
08:58:34 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:58:34 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:34 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:34 INFO    opendrift:2036: 2025-08-07 14:57:04.212895 - step 61 of 96 - 18 active elements (2982 deactivated)
08:58:34 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:34 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:34 INFO    opendrift:2036: 2025-08-07 15:27:04.212895 - step 62 of 96 - 18 active elements (2982 deactivated)
08:58:36 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.013457479 to -0.0009996783) found for ocean_vertical_diffusivity, replacing with NaN
08:58:36 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:58:36 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:36 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:36 INFO    opendrift:2036: 2025-08-07 15:57:04.212895 - step 63 of 96 - 18 active elements (2982 deactivated)
08:58:36 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:36 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:36 INFO    opendrift:2036: 2025-08-07 16:27:04.212895 - step 64 of 96 - 18 active elements (2982 deactivated)
08:58:39 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.016354583 to -0.001731348) found for ocean_vertical_diffusivity, replacing with NaN
08:58:39 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:58:39 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:39 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:39 INFO    opendrift:2036: 2025-08-07 16:57:04.212895 - step 65 of 96 - 18 active elements (2982 deactivated)
08:58:39 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:39 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:39 INFO    opendrift:2036: 2025-08-07 17:27:04.212895 - step 66 of 96 - 18 active elements (2982 deactivated)
08:58:41 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.01900834 to -0.0013658291) found for ocean_vertical_diffusivity, replacing with NaN
08:58:41 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:58:41 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:41 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:41 INFO    opendrift:2036: 2025-08-07 17:57:04.212895 - step 67 of 96 - 17 active elements (2983 deactivated)
08:58:41 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:41 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:41 INFO    opendrift:2036: 2025-08-07 18:27:04.212895 - step 68 of 96 - 17 active elements (2983 deactivated)
08:58:43 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.018121483 to -0.0020458286) found for ocean_vertical_diffusivity, replacing with NaN
08:58:43 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:58:43 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:43 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:43 INFO    opendrift:2036: 2025-08-07 18:57:04.212895 - step 69 of 96 - 17 active elements (2983 deactivated)
08:58:43 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:43 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:43 INFO    opendrift:2036: 2025-08-07 19:27:04.212895 - step 70 of 96 - 17 active elements (2983 deactivated)
08:58:45 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.01615473 to -0.0011898819) found for ocean_vertical_diffusivity, replacing with NaN
08:58:45 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:58:45 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:45 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:45 INFO    opendrift:2036: 2025-08-07 19:57:04.212895 - step 71 of 96 - 17 active elements (2983 deactivated)
08:58:45 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:45 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:45 INFO    opendrift:2036: 2025-08-07 20:27:04.212895 - step 72 of 96 - 17 active elements (2983 deactivated)
08:58:48 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.017509852 to -0.00082253496) found for ocean_vertical_diffusivity, replacing with NaN
08:58:48 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:58:48 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:48 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:48 INFO    opendrift:2036: 2025-08-07 20:57:04.212895 - step 73 of 96 - 17 active elements (2983 deactivated)
08:58:48 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:48 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:48 INFO    opendrift:2036: 2025-08-07 21:27:04.212895 - step 74 of 96 - 17 active elements (2983 deactivated)
08:58:50 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.019631425 to -0.0008489196) found for ocean_vertical_diffusivity, replacing with NaN
08:58:50 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:58:50 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:50 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:50 INFO    opendrift:2036: 2025-08-07 21:57:04.212895 - step 75 of 96 - 17 active elements (2983 deactivated)
08:58:50 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:50 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:50 INFO    opendrift:2036: 2025-08-07 22:27:04.212895 - step 76 of 96 - 17 active elements (2983 deactivated)
08:58:52 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.018421505 to -0.000581502) found for ocean_vertical_diffusivity, replacing with NaN
08:58:52 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:58:52 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:52 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:52 INFO    opendrift:2036: 2025-08-07 22:57:04.212895 - step 77 of 96 - 17 active elements (2983 deactivated)
08:58:52 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:52 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:52 INFO    opendrift:2036: 2025-08-07 23:27:04.212895 - step 78 of 96 - 17 active elements (2983 deactivated)
08:58:54 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.01327306 to -0.0014742912) found for ocean_vertical_diffusivity, replacing with NaN
08:58:54 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:58:54 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:54 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:55 INFO    opendrift:2036: 2025-08-07 23:57:04.212895 - step 79 of 96 - 17 active elements (2983 deactivated)
08:58:55 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:55 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:55 INFO    opendrift:2036: 2025-08-08 00:27:04.212895 - step 80 of 96 - 17 active elements (2983 deactivated)
08:58:57 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.009203611 to -0.0008093065) found for ocean_vertical_diffusivity, replacing with NaN
08:58:57 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:58:57 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:57 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:57 INFO    opendrift:2036: 2025-08-08 00:57:04.212895 - step 81 of 96 - 17 active elements (2983 deactivated)
08:58:57 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:57 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:57 INFO    opendrift:2036: 2025-08-08 01:27:04.212895 - step 82 of 96 - 16 active elements (2984 deactivated)
08:58:59 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.0050256504 to -0.0005685604) found for ocean_vertical_diffusivity, replacing with NaN
08:58:59 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:58:59 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:59 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:59 INFO    opendrift:2036: 2025-08-08 01:57:04.212895 - step 83 of 96 - 16 active elements (2984 deactivated)
08:58:59 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:59 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:58:59 INFO    opendrift:2036: 2025-08-08 02:27:04.212895 - step 84 of 96 - 16 active elements (2984 deactivated)
08:59:02 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.011629436 to -0.00025219744) found for ocean_vertical_diffusivity, replacing with NaN
08:59:02 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:59:02 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:59:02 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:59:02 INFO    opendrift:2036: 2025-08-08 02:57:04.212895 - step 85 of 96 - 16 active elements (2984 deactivated)
08:59:02 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:59:02 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:59:02 INFO    opendrift:2036: 2025-08-08 03:27:04.212895 - step 86 of 96 - 16 active elements (2984 deactivated)
08:59:04 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.022346301 to -0.00015238252) found for ocean_vertical_diffusivity, replacing with NaN
08:59:04 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:59:04 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:59:04 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:59:04 INFO    opendrift:2036: 2025-08-08 03:57:04.212895 - step 87 of 96 - 16 active elements (2984 deactivated)
08:59:04 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:59:04 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:59:04 INFO    opendrift:2036: 2025-08-08 04:27:04.212895 - step 88 of 96 - 16 active elements (2984 deactivated)
08:59:06 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.03137912 to -0.00034680913) found for ocean_vertical_diffusivity, replacing with NaN
08:59:06 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:59:06 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:59:06 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:59:06 INFO    opendrift:2036: 2025-08-08 04:57:04.212895 - step 89 of 96 - 16 active elements (2984 deactivated)
08:59:06 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:59:06 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:59:06 INFO    opendrift:2036: 2025-08-08 05:27:04.212895 - step 90 of 96 - 16 active elements (2984 deactivated)
08:59:08 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.032948643 to -0.001045897) found for ocean_vertical_diffusivity, replacing with NaN
08:59:08 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:59:08 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:59:08 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:59:08 INFO    opendrift:2036: 2025-08-08 05:57:04.212895 - step 91 of 96 - 16 active elements (2984 deactivated)
08:59:08 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:59:08 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:59:08 INFO    opendrift:2036: 2025-08-08 06:27:04.212895 - step 92 of 96 - 16 active elements (2984 deactivated)
08:59:10 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.030041782 to -0.0007441309) found for ocean_vertical_diffusivity, replacing with NaN
08:59:10 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:59:10 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:59:10 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:59:10 INFO    opendrift:2036: 2025-08-08 06:57:04.212895 - step 93 of 96 - 16 active elements (2984 deactivated)
08:59:10 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:59:10 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:59:10 INFO    opendrift:2036: 2025-08-08 07:27:04.212895 - step 94 of 96 - 16 active elements (2984 deactivated)
08:59:13 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.02711106 to -0.002555705) found for ocean_vertical_diffusivity, replacing with NaN
08:59:13 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:59:13 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:59:13 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:59:13 INFO    opendrift:2036: 2025-08-08 07:57:04.212895 - step 95 of 96 - 16 active elements (2984 deactivated)
08:59:13 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:59:13 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:59:13 INFO    opendrift:2036: 2025-08-08 08:27:04.212895 - step 96 of 96 - 15 active elements (2985 deactivated)
08:59:16 WARNING opendrift.readers.basereader.variables:656: Invalid values (-0.02586156 to -0.0018313057) found for ocean_vertical_diffusivity, replacing with NaN
08:59:16 WARNING opendrift.readers.basereader.variables:659: (allowed range: [0, 1])
08:59:16 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
08:59:16 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning

<xarray.Dataset> Size: 25MB
Dimensions:                                                                              (
                                                                                          trajectory: 3000,
                                                                                          time: 49)
Coordinates:
  * trajectory                                                                           (trajectory) int64 24kB ...
  * time                                                                                 (time) datetime64[ns] 392B ...
Data variables: (12/43)
    status                                                                               (trajectory, time) float32 588kB ...
    moving                                                                               (trajectory, time) float32 588kB ...
    age_seconds                                                                          (trajectory, time) float32 588kB ...
    origin_marker                                                                        (trajectory, time) float32 588kB ...
    lon                                                                                  (trajectory, time) float32 588kB ...
    lat                                                                                  (trajectory, time) float32 588kB ...
    ...                                                                                   ...
    sea_water_temperature                                                                (trajectory, time) float32 588kB ...
    sea_water_salinity                                                                   (trajectory, time) float32 588kB ...
    sea_floor_depth_below_sea_level                                                      (trajectory, time) float32 588kB ...
    ocean_vertical_diffusivity                                                           (trajectory, time) float32 588kB ...
    land_binary_mask                                                                     (trajectory, time) float32 588kB ...
    ocean_mixed_layer_thickness                                                          (trajectory, time) float32 588kB ...
Attributes: (12/165)
    Conventions:                                                             ...
    standard_name_vocabulary:                                                ...
    featureType:                                                             ...
    title:                                                                   ...
    summary:                                                                 ...
    keywords:                                                                ...
    ...                                                                                                               ...
    geospatial_lon_units:                                                    ...
    geospatial_lon_resolution:                                               ...
    runtime:                                                                 ...
    geospatial_vertical_min:                                                 ...
    geospatial_vertical_max:                                                 ...
    geospatial_vertical_positive:                                            ...


Print and plot results

print(o)
o.animation(background='sea_ice_area_fraction', cmap=cmocean.cm.ice,
            vmin=0, vmax=1, bgalpha=1, fast=False)

===========================
--------------------
Reader performance:
--------------------
global_landmask
 0:00:01.5  total
 0:00:00.0  preparing
 0:00:01.5  reading
 0:00:00.0  masking
--------------------
https://thredds.met.no/thredds/dodsC/fou-hi/barents_eps_zdepth_be
 0:01:54.7  total
 0:00:00.0  preparing
 0:01:54.2  reading
 0:00:00.6  interpolation
 0:00:00.1  interpolation_time
 0:00:00.4  rotating vectors
 0:00:00.0  masking
--------------------
Performance:
 2:11.9 total time
    4.1 configuration
    0.1 preparing main loop
      0.0 moving elements to ocean
 2:07.6 main loop
      4.2 updating elements
        0.0 oil weathering
          0.0 updating viscosities
          0.0 updating densities
        4.0 vertical mixing
    0.0 cleaning up
--------------------
===========================
Model:  OpenOil     (OpenDrift version 1.14.2)
        15 active Oil particles  (2985 deactivated, 0 scheduled)
-------------------
Environment variables:
  -----
  land_binary_mask
     1) global_landmask
  -----
  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_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/barents_eps_zdepth_be
  -----
Readers not added for the following variables:
  ocean_mixed_layer_thickness
  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: 2025-08-06 08:57:04.212895 UTC
        Present: 2025-08-08 08:57:04.212895 UTC
        Calculation steps: 96 * 0:30:00 - total time: 2 days, 0:00:00
        Output steps: 49 * 1:00:00
===========================

/opt/conda/envs/opendrift/lib/python3.13/site-packages/cartopy/mpl/geoaxes.py:1677: UserWarning: No data for colormapping provided via 'c'. Parameters 'vmin', 'vmax' will be ignored
  result = super().scatter(*args, **kwargs)
08:59:27 INFO    opendrift:4560: Saving animation to /root/project/docs/source/gallery/animations/example_oil_ice_0.gif...
09:00:11 INFO    opendrift:3001: Time to make animation: 0:00:55.193895
../_images/example_oil_ice_0.gif 
o.plot(background='sea_ice_area_fraction', cmap=cmocean.cm.ice,
       vmin=0, vmax=1, bgalpha=1, fast=False)
OpenDrift - OpenOil (GENERIC BUNKER C) 2025-08-06 08:57 to 2025-08-08 08:57 UTC (49 steps)
(<GeoAxes: title={'center': 'OpenDrift - OpenOil (GENERIC BUNKER C)\n2025-08-06 08:57 to 2025-08-08 08:57 UTC (49 steps)'}>, <Figure size 578.381x1100 with 2 Axes>)

Total running time of the script: (3 minutes 22.670 seconds)

Gallery generated by Sphinx-Gallery