Note
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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)
09:16:50 INFO opendrift:569: OpenDriftSimulation initialised (version 1.14.9 / v1.14.9-61-g2d35ef6)
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('environment:constant: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))
09:16:50 INFO opendrift.models.openoil.openoil:1720: Oil type not specified, using default: GENERIC BUNKER C
09:16:50 INFO opendrift.models.openoil.adios.dirjs:86: Querying ADIOS database for oil: GENERIC BUNKER C
09:16:50 INFO opendrift.models.openoil.openoil:1731: Using density 988.1 and viscosity 0.021692333877975332 of oiltype GENERIC BUNKER C
09:16:50 INFO opendrift.models.basemodel.environment:203: Adding a global landmask from GSHHG
09:16:54 INFO opendrift.models.basemodel.environment:227: Fallback values will be used for the following variables which have no readers:
09:16:54 INFO opendrift.models.basemodel.environment:230: sea_surface_height: 0.000000
09:16:54 INFO opendrift.models.basemodel.environment:230: upward_sea_water_velocity: 0.000000
09:16:54 INFO opendrift.models.basemodel.environment:230: sea_surface_wave_significant_height: 0.000000
09:16:54 INFO opendrift.models.basemodel.environment:230: sea_surface_wave_stokes_drift_x_velocity: 0.000000
09:16:54 INFO opendrift.models.basemodel.environment:230: sea_surface_wave_stokes_drift_y_velocity: 0.000000
09:16:54 INFO opendrift.models.basemodel.environment:230: sea_surface_wave_period_at_variance_spectral_density_maximum: 0.000000
09:16:54 INFO opendrift.models.basemodel.environment:230: sea_surface_wave_mean_period_from_variance_spectral_density_second_frequency_moment: 0.000000
09:16:54 INFO opendrift.models.basemodel.environment:230: sea_ice_area_fraction: 0.000000
09:16:54 INFO opendrift.models.basemodel.environment:230: sea_ice_x_velocity: 0.000000
09:16:54 INFO opendrift.models.basemodel.environment:230: sea_ice_y_velocity: 0.000000
09:16:54 INFO opendrift.models.basemodel.environment:230: sea_water_temperature: 10.000000
09:16:54 INFO opendrift.models.basemodel.environment:230: sea_water_salinity: 34.000000
09:16:54 INFO opendrift.models.basemodel.environment:230: sea_floor_depth_below_sea_level: 10000.000000
09:16:54 INFO opendrift.models.basemodel.environment:230: ocean_vertical_diffusivity: 0.020000
09:16:54 INFO opendrift.models.basemodel.environment:230: ocean_mixed_layer_thickness: 50.000000
Running model
o.run(duration=timedelta(hours=48), time_step=1800, time_step_output=3600)
09:16:54 INFO opendrift:1903: Skipping environment variable upward_sea_water_velocity because of condition ['drift:vertical_advection', 'is', False]
09:16:54 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']))
09:16:54 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']))
09:16:54 INFO opendrift:955: Using existing reader for land_binary_mask to move elements to ocean
09:16:54 INFO opendrift:986: All points are in ocean
09:16:54 INFO opendrift.models.openoil.openoil:697: Oil-water surface tension is 0.035935 Nm
09:16:54 INFO opendrift.models.openoil.openoil:710: Max water fraction not available for GENERIC BUNKER C, using default
09:16:54 INFO opendrift:2211: 2026-05-29 09:16:50.403949 - step 1 of 96 - 3000 active elements (0 deactivated)
09:16:54 INFO opendrift.readers:67: Opening file with xr.open_dataset
09:16:57 INFO opendrift.readers.reader_netCDF_CF_generic:340: Detected dimensions: {'x': 'X', 'y': 'Y', 'z': 'depth', 'time': 'time'}
09:16:57 INFO opendrift.readers.basereader:178: Variable x_sea_water_velocity will be rotated from eastward_sea_water_velocity
09:16:57 INFO opendrift.readers.basereader:178: Variable y_sea_water_velocity will be rotated from northward_sea_water_velocity
09:17:00 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.009110729 to -0.0015532473) found for ocean_vertical_diffusivity, replacing with NaN
09:17:00 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:17:03 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.007459907 to -0.00047254862) found for ocean_vertical_diffusivity, replacing with NaN
09:17:03 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:17:03 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:03 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:03 INFO opendrift:2211: 2026-05-29 09:46:50.403949 - step 2 of 96 - 3000 active elements (0 deactivated)
09:17:03 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:03 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:03 INFO opendrift:2211: 2026-05-29 10:16:50.403949 - step 3 of 96 - 3000 active elements (0 deactivated)
09:17:06 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.0056662383 to -0.0001429172) found for ocean_vertical_diffusivity, replacing with NaN
09:17:06 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:17:06 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:06 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:06 INFO opendrift:2211: 2026-05-29 10:46:50.403949 - step 4 of 96 - 3000 active elements (0 deactivated)
09:17:06 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:06 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:07 INFO opendrift:2211: 2026-05-29 11:16:50.403949 - step 5 of 96 - 3000 active elements (0 deactivated)
09:17:10 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.003347708 to -0.0004902227) found for ocean_vertical_diffusivity, replacing with NaN
09:17:10 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:17:10 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:10 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:10 INFO opendrift:2211: 2026-05-29 11:46:50.403949 - step 6 of 96 - 3000 active elements (0 deactivated)
09:17:10 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:10 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:10 INFO opendrift:2211: 2026-05-29 12:16:50.403949 - step 7 of 96 - 3000 active elements (0 deactivated)
09:17:14 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.0032484776 to -0.0005108133) found for ocean_vertical_diffusivity, replacing with NaN
09:17:14 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:17:14 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:14 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:15 INFO opendrift:2211: 2026-05-29 12:46:50.403949 - step 8 of 96 - 3000 active elements (0 deactivated)
09:17:15 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:15 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:16 INFO opendrift:2211: 2026-05-29 13:16:50.403949 - step 9 of 96 - 2998 active elements (2 deactivated)
09:17:19 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.0042883963 to -0.0002928763) found for ocean_vertical_diffusivity, replacing with NaN
09:17:19 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:17:19 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:19 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:20 INFO opendrift:2211: 2026-05-29 13:46:50.403949 - step 10 of 96 - 2997 active elements (3 deactivated)
09:17:20 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:20 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:20 INFO opendrift:2211: 2026-05-29 14:16:50.403949 - step 11 of 96 - 2996 active elements (4 deactivated)
09:17:23 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.0048707263 to -0.00013859702) found for ocean_vertical_diffusivity, replacing with NaN
09:17:23 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:17:23 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:23 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:23 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:17:23 INFO opendrift:2211: 2026-05-29 14:46:50.403949 - step 12 of 96 - 2988 active elements (12 deactivated)
09:17:23 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:23 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:23 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:17:23 INFO opendrift:2211: 2026-05-29 15:16:50.403949 - step 13 of 96 - 2975 active elements (25 deactivated)
09:17:26 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.004562147 to -0.0007654746) found for ocean_vertical_diffusivity, replacing with NaN
09:17:26 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:17:26 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:26 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:26 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:17:26 INFO opendrift:2211: 2026-05-29 15:46:50.403949 - step 14 of 96 - 2970 active elements (30 deactivated)
09:17:26 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:26 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:27 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:17:27 INFO opendrift:2211: 2026-05-29 16:16:50.403949 - step 15 of 96 - 2968 active elements (32 deactivated)
09:17:30 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.008994252 to -0.0021058377) found for ocean_vertical_diffusivity, replacing with NaN
09:17:30 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:17:30 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:30 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:30 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:17:30 INFO opendrift:2211: 2026-05-29 16:46:50.403949 - step 16 of 96 - 2966 active elements (34 deactivated)
09:17:30 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:30 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:30 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:17:30 INFO opendrift:2211: 2026-05-29 17:16:50.403949 - step 17 of 96 - 2964 active elements (36 deactivated)
09:17:33 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.024358356 to -0.0036763956) found for ocean_vertical_diffusivity, replacing with NaN
09:17:33 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:17:33 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:33 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:33 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:17:33 INFO opendrift:2211: 2026-05-29 17:46:50.403949 - step 18 of 96 - 2964 active elements (36 deactivated)
09:17:33 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:33 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:33 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:17:33 INFO opendrift:2211: 2026-05-29 18:16:50.403949 - step 19 of 96 - 2964 active elements (36 deactivated)
09:17:36 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.03322389 to -0.0059895297) found for ocean_vertical_diffusivity, replacing with NaN
09:17:36 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:17:36 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:36 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:37 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:17:37 INFO opendrift:2211: 2026-05-29 18:46:50.403949 - step 20 of 96 - 2964 active elements (36 deactivated)
09:17:37 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:37 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:37 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:17:37 INFO opendrift:2211: 2026-05-29 19:16:50.403949 - step 21 of 96 - 2964 active elements (36 deactivated)
09:17:40 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.0302592 to -0.005017757) found for ocean_vertical_diffusivity, replacing with NaN
09:17:40 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:17:40 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:40 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:40 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:17:40 INFO opendrift:2211: 2026-05-29 19:46:50.403949 - step 22 of 96 - 2964 active elements (36 deactivated)
09:17:40 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:40 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:41 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:17:41 INFO opendrift:2211: 2026-05-29 20:16:50.403949 - step 23 of 96 - 2964 active elements (36 deactivated)
09:17:43 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.018302178 to -0.0050412402) found for ocean_vertical_diffusivity, replacing with NaN
09:17:43 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:17:43 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:43 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:43 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:17:43 INFO opendrift:2211: 2026-05-29 20:46:50.403949 - step 24 of 96 - 2964 active elements (36 deactivated)
09:17:43 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:43 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:44 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:17:44 INFO opendrift:2211: 2026-05-29 21:16:50.403949 - step 25 of 96 - 2964 active elements (36 deactivated)
09:17:47 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.015035807 to -0.0039956835) found for ocean_vertical_diffusivity, replacing with NaN
09:17:47 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:17:47 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:47 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:47 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:17:47 INFO opendrift:2211: 2026-05-29 21:46:50.403949 - step 26 of 96 - 2964 active elements (36 deactivated)
09:17:47 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:47 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:47 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:17:47 INFO opendrift:2211: 2026-05-29 22:16:50.403949 - step 27 of 96 - 2964 active elements (36 deactivated)
09:17:50 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.013419865 to -0.0030504744) found for ocean_vertical_diffusivity, replacing with NaN
09:17:50 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:17:50 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:50 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:50 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:17:50 INFO opendrift:2211: 2026-05-29 22:46:50.403949 - step 28 of 96 - 2963 active elements (37 deactivated)
09:17:50 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:50 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:50 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:17:50 INFO opendrift:2211: 2026-05-29 23:16:50.403949 - step 29 of 96 - 2935 active elements (65 deactivated)
09:17:53 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.011086055 to -0.0022585776) found for ocean_vertical_diffusivity, replacing with NaN
09:17:53 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:17:53 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:53 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:54 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:17:54 INFO opendrift:2211: 2026-05-29 23:46:50.403949 - step 30 of 96 - 2881 active elements (119 deactivated)
09:17:54 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:54 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:54 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:17:54 INFO opendrift:2211: 2026-05-30 00:16:50.403949 - step 31 of 96 - 2796 active elements (204 deactivated)
09:17:58 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.007282445 to -0.0016127091) found for ocean_vertical_diffusivity, replacing with NaN
09:17:58 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:17:58 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:58 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:58 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:17:58 INFO opendrift:2211: 2026-05-30 00:46:50.403949 - step 32 of 96 - 2730 active elements (270 deactivated)
09:17:58 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:58 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:17:58 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:17:58 INFO opendrift:2211: 2026-05-30 01:16:50.403949 - step 33 of 96 - 2693 active elements (307 deactivated)
09:18:02 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.005888934 to -2.597894e-05) found for ocean_vertical_diffusivity, replacing with NaN
09:18:02 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:18:02 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:02 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:02 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:02 INFO opendrift:2211: 2026-05-30 01:46:50.403949 - step 34 of 96 - 2683 active elements (317 deactivated)
09:18:02 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:02 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:02 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:02 INFO opendrift:2211: 2026-05-30 02:16:50.403949 - step 35 of 96 - 2676 active elements (324 deactivated)
09:18:05 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.0015992499 to -3.3312963e-06) found for ocean_vertical_diffusivity, replacing with NaN
09:18:05 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:18:05 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:05 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:05 INFO opendrift:2211: 2026-05-30 02:46:50.403949 - step 36 of 96 - 2675 active elements (325 deactivated)
09:18:05 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:06 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:06 INFO opendrift:2211: 2026-05-30 03:16:50.403949 - step 37 of 96 - 2674 active elements (326 deactivated)
09:18:09 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.0040970026 to -5.9075355e-05) found for ocean_vertical_diffusivity, replacing with NaN
09:18:09 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:18:09 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:09 INFO opendrift:2211: 2026-05-30 03:46:50.403949 - step 38 of 96 - 2674 active elements (326 deactivated)
09:18:09 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:09 INFO opendrift:2211: 2026-05-30 04:16:50.403949 - step 39 of 96 - 2670 active elements (330 deactivated)
09:18:13 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.012409156 to -0.00097356807) found for ocean_vertical_diffusivity, replacing with NaN
09:18:13 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:18:13 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:13 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:13 INFO opendrift:2211: 2026-05-30 04:46:50.403949 - step 40 of 96 - 2666 active elements (334 deactivated)
09:18:13 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:13 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:13 INFO opendrift:2211: 2026-05-30 05:16:50.403949 - step 41 of 96 - 2666 active elements (334 deactivated)
09:18:16 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.023300765 to -0.0065888595) found for ocean_vertical_diffusivity, replacing with NaN
09:18:16 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:18:16 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:16 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:16 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:16 INFO opendrift:2211: 2026-05-30 05:46:50.403949 - step 42 of 96 - 2666 active elements (334 deactivated)
09:18:16 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:16 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:16 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:16 INFO opendrift:2211: 2026-05-30 06:16:50.403949 - step 43 of 96 - 2666 active elements (334 deactivated)
09:18:20 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.03112201 to -0.011843681) found for ocean_vertical_diffusivity, replacing with NaN
09:18:20 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:18:20 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:20 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:20 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:20 INFO opendrift:2211: 2026-05-30 06:46:50.403949 - step 44 of 96 - 2666 active elements (334 deactivated)
09:18:20 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:20 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:20 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:20 INFO opendrift:2211: 2026-05-30 07:16:50.403949 - step 45 of 96 - 2666 active elements (334 deactivated)
09:18:23 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.038242 to -0.015775168) found for ocean_vertical_diffusivity, replacing with NaN
09:18:23 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:18:23 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:23 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:23 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:23 INFO opendrift:2211: 2026-05-30 07:46:50.403949 - step 46 of 96 - 2666 active elements (334 deactivated)
09:18:23 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:23 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:23 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:23 INFO opendrift:2211: 2026-05-30 08:16:50.403949 - step 47 of 96 - 2666 active elements (334 deactivated)
09:18:27 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.03801841 to -0.01505408) found for ocean_vertical_diffusivity, replacing with NaN
09:18:27 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:18:27 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:27 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:27 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:27 INFO opendrift:2211: 2026-05-30 08:46:50.403949 - step 48 of 96 - 2666 active elements (334 deactivated)
09:18:27 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:27 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:27 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:27 INFO opendrift:2211: 2026-05-30 09:16:50.403949 - step 49 of 96 - 2666 active elements (334 deactivated)
09:18:31 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.035573374 to -0.009474293) found for ocean_vertical_diffusivity, replacing with NaN
09:18:31 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:18:31 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:31 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:31 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:31 INFO opendrift:2211: 2026-05-30 09:46:50.403949 - step 50 of 96 - 2666 active elements (334 deactivated)
09:18:31 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:31 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:31 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:31 INFO opendrift:2211: 2026-05-30 10:16:50.403949 - step 51 of 96 - 2666 active elements (334 deactivated)
09:18:34 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.026126895 to -0.0067125903) found for ocean_vertical_diffusivity, replacing with NaN
09:18:34 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:18:34 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:34 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:34 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:34 INFO opendrift:2211: 2026-05-30 10:46:50.403949 - step 52 of 96 - 2666 active elements (334 deactivated)
09:18:34 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:34 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:34 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:34 INFO opendrift:2211: 2026-05-30 11:16:50.403949 - step 53 of 96 - 2666 active elements (334 deactivated)
09:18:37 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.020125663 to -0.0032095623) found for ocean_vertical_diffusivity, replacing with NaN
09:18:37 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:18:37 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:37 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:38 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:38 INFO opendrift:2211: 2026-05-30 11:46:50.403949 - step 54 of 96 - 2664 active elements (336 deactivated)
09:18:38 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:38 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:38 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:38 INFO opendrift:2211: 2026-05-30 12:16:50.403949 - step 55 of 96 - 2653 active elements (347 deactivated)
09:18:41 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.014767375 to -0.0028508476) found for ocean_vertical_diffusivity, replacing with NaN
09:18:41 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:18:41 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:41 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:41 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:41 INFO opendrift:2211: 2026-05-30 12:46:50.403949 - step 56 of 96 - 2623 active elements (377 deactivated)
09:18:41 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:41 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:41 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:41 INFO opendrift:2211: 2026-05-30 13:16:50.403949 - step 57 of 96 - 2553 active elements (447 deactivated)
09:18:44 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.009622955 to -0.0011638985) found for ocean_vertical_diffusivity, replacing with NaN
09:18:44 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:18:44 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:44 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:44 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:44 INFO opendrift:2211: 2026-05-30 13:46:50.403949 - step 58 of 96 - 2466 active elements (534 deactivated)
09:18:44 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:44 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:45 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:45 INFO opendrift:2211: 2026-05-30 14:16:50.403949 - step 59 of 96 - 2370 active elements (630 deactivated)
09:18:48 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.0027940227 to -1.3712016e-06) found for ocean_vertical_diffusivity, replacing with NaN
09:18:48 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:18:48 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:48 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:48 INFO opendrift:2211: 2026-05-30 14:46:50.403949 - step 60 of 96 - 2274 active elements (726 deactivated)
09:18:48 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:48 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:48 INFO opendrift:2211: 2026-05-30 15:16:50.403949 - step 61 of 96 - 2213 active elements (787 deactivated)
09:18:51 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.0068955724 to -1.6514141e-05) found for ocean_vertical_diffusivity, replacing with NaN
09:18:51 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:18:51 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:51 INFO opendrift:2211: 2026-05-30 15:46:50.403949 - step 62 of 96 - 2152 active elements (848 deactivated)
09:18:51 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:51 INFO opendrift:2211: 2026-05-30 16:16:50.403949 - step 63 of 96 - 2080 active elements (920 deactivated)
09:18:55 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.017424917 to -4.0053084e-05) found for ocean_vertical_diffusivity, replacing with NaN
09:18:55 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:18:55 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:55 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:55 INFO opendrift:2211: 2026-05-30 16:46:50.403949 - step 64 of 96 - 2005 active elements (995 deactivated)
09:18:55 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:55 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:55 INFO opendrift:2211: 2026-05-30 17:16:50.403949 - step 65 of 96 - 1923 active elements (1077 deactivated)
09:18:58 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.029951021 to -0.0019202703) found for ocean_vertical_diffusivity, replacing with NaN
09:18:58 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:18:58 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:58 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:58 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:58 INFO opendrift:2211: 2026-05-30 17:46:50.403949 - step 66 of 96 - 1864 active elements (1136 deactivated)
09:18:58 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:58 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:18:58 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:18:58 INFO opendrift:2211: 2026-05-30 18:16:50.403949 - step 67 of 96 - 1812 active elements (1188 deactivated)
09:19:02 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.04717969 to -0.0023909763) found for ocean_vertical_diffusivity, replacing with NaN
09:19:02 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:19:02 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:02 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:02 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:19:02 INFO opendrift:2211: 2026-05-30 18:46:50.403949 - step 68 of 96 - 1772 active elements (1228 deactivated)
09:19:02 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:02 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:02 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:19:02 INFO opendrift:2211: 2026-05-30 19:16:50.403949 - step 69 of 96 - 1741 active elements (1259 deactivated)
09:19:05 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.062722385 to -0.0035183635) found for ocean_vertical_diffusivity, replacing with NaN
09:19:05 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:19:05 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:05 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:05 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:19:05 INFO opendrift:2211: 2026-05-30 19:46:50.403949 - step 70 of 96 - 1716 active elements (1284 deactivated)
09:19:05 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:05 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:05 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:19:05 INFO opendrift:2211: 2026-05-30 20:16:50.403949 - step 71 of 96 - 1694 active elements (1306 deactivated)
09:19:12 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.051102683 to -0.003497761) found for ocean_vertical_diffusivity, replacing with NaN
09:19:12 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:19:12 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:12 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:12 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:19:12 INFO opendrift:2211: 2026-05-30 20:46:50.403949 - step 72 of 96 - 1677 active elements (1323 deactivated)
09:19:12 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:12 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:12 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:19:12 INFO opendrift:2211: 2026-05-30 21:16:50.403949 - step 73 of 96 - 1659 active elements (1341 deactivated)
09:19:15 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.031494435 to -0.0027906112) found for ocean_vertical_diffusivity, replacing with NaN
09:19:15 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:19:15 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:15 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:15 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:19:15 INFO opendrift:2211: 2026-05-30 21:46:50.403949 - step 74 of 96 - 1642 active elements (1358 deactivated)
09:19:15 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:15 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:15 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:19:15 INFO opendrift:2211: 2026-05-30 22:16:50.403949 - step 75 of 96 - 1630 active elements (1370 deactivated)
09:19:18 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.025318578 to -0.002432195) found for ocean_vertical_diffusivity, replacing with NaN
09:19:18 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:19:18 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:18 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:18 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:19:18 INFO opendrift:2211: 2026-05-30 22:46:50.403949 - step 76 of 96 - 1614 active elements (1386 deactivated)
09:19:18 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:18 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:18 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:19:18 INFO opendrift:2211: 2026-05-30 23:16:50.403949 - step 77 of 96 - 1591 active elements (1409 deactivated)
09:19:21 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.022338035 to -0.0021942414) found for ocean_vertical_diffusivity, replacing with NaN
09:19:21 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:19:21 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:21 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:21 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:19:21 INFO opendrift:2211: 2026-05-30 23:46:50.403949 - step 78 of 96 - 1569 active elements (1431 deactivated)
09:19:21 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:21 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:21 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:19:21 INFO opendrift:2211: 2026-05-31 00:16:50.403949 - step 79 of 96 - 1553 active elements (1447 deactivated)
09:19:24 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.01715164 to -0.0024025626) found for ocean_vertical_diffusivity, replacing with NaN
09:19:24 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:19:24 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:24 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:25 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:19:25 INFO opendrift:2211: 2026-05-31 00:46:50.403949 - step 80 of 96 - 1538 active elements (1462 deactivated)
09:19:25 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:25 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:25 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:19:25 INFO opendrift:2211: 2026-05-31 01:16:50.403949 - step 81 of 96 - 1518 active elements (1482 deactivated)
09:19:28 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.02036711 to -0.0011899605) found for ocean_vertical_diffusivity, replacing with NaN
09:19:28 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:19:28 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:28 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:28 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:19:28 INFO opendrift:2211: 2026-05-31 01:46:50.403949 - step 82 of 96 - 1504 active elements (1496 deactivated)
09:19:28 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:28 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:28 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:19:28 INFO opendrift:2211: 2026-05-31 02:16:50.403949 - step 83 of 96 - 1493 active elements (1507 deactivated)
09:19:31 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.010435524 to -6.922132e-06) found for ocean_vertical_diffusivity, replacing with NaN
09:19:31 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:19:31 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:31 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:19:31 INFO opendrift:2211: 2026-05-31 02:46:50.403949 - step 84 of 96 - 1485 active elements (1515 deactivated)
09:19:31 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:31 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:19:31 INFO opendrift:2211: 2026-05-31 03:16:50.403949 - step 85 of 96 - 1471 active elements (1529 deactivated)
09:19:34 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.0022261934 to -5.325781e-05) found for ocean_vertical_diffusivity, replacing with NaN
09:19:34 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:19:34 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:19:34 INFO opendrift:2211: 2026-05-31 03:46:50.403949 - step 86 of 96 - 1451 active elements (1549 deactivated)
09:19:34 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:19:34 INFO opendrift:2211: 2026-05-31 04:16:50.403949 - step 87 of 96 - 1425 active elements (1575 deactivated)
09:19:37 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.0043623527 to -2.4000733e-06) found for ocean_vertical_diffusivity, replacing with NaN
09:19:37 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:19:37 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:19:37 INFO opendrift:2211: 2026-05-31 04:46:50.403949 - step 88 of 96 - 1386 active elements (1614 deactivated)
09:19:37 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:19:37 INFO opendrift:2211: 2026-05-31 05:16:50.403949 - step 89 of 96 - 1357 active elements (1643 deactivated)
09:19:40 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.012942527 to -0.00019031935) found for ocean_vertical_diffusivity, replacing with NaN
09:19:40 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:19:40 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:40 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:19:40 INFO opendrift:2211: 2026-05-31 05:46:50.403949 - step 90 of 96 - 1311 active elements (1689 deactivated)
09:19:40 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:41 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:19:41 INFO opendrift:2211: 2026-05-31 06:16:50.403949 - step 91 of 96 - 1271 active elements (1729 deactivated)
09:19:47 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.029418672 to -0.00053468987) found for ocean_vertical_diffusivity, replacing with NaN
09:19:47 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:19:47 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:47 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:47 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:19:47 INFO opendrift:2211: 2026-05-31 06:46:50.403949 - step 92 of 96 - 1226 active elements (1774 deactivated)
09:19:47 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:47 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:47 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:19:47 INFO opendrift:2211: 2026-05-31 07:16:50.403949 - step 93 of 96 - 1208 active elements (1792 deactivated)
09:19:50 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.05176754 to -0.0006599112) found for ocean_vertical_diffusivity, replacing with NaN
09:19:50 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:19:50 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:50 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:50 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:19:50 INFO opendrift:2211: 2026-05-31 07:46:50.403949 - step 94 of 96 - 1191 active elements (1809 deactivated)
09:19:50 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:50 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:50 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:19:50 INFO opendrift:2211: 2026-05-31 08:16:50.403949 - step 95 of 96 - 1176 active elements (1824 deactivated)
09:19:53 WARNING opendrift.readers.basereader.variables:657: Invalid values (-0.05295907 to -0.0002834458) found for ocean_vertical_diffusivity, replacing with NaN
09:19:53 WARNING opendrift.readers.basereader.variables:660: (allowed range: [0, 1])
09:19:53 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:53 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:54 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
09:19:54 INFO opendrift:2211: 2026-05-31 08:46:50.403949 - step 96 of 96 - 1161 active elements (1839 deactivated)
09:19:54 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:54 WARNING opendrift.readers.interpolation.interpolators:118: Only NaNs input to linearNDFast - returning
09:19:54 INFO opendrift.models.openoil.openoil:1193: Ice concentration above 30%, using Nordam scheme for advection in ice
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:
--------------------
constant_reader
0:00:00.0 total
0:00:00.0 preparing
0:00:00.0 reading
0:00:00.0 masking
--------------------
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
0:02:43.9 total
0:00:00.0 preparing
0:02:42.9 reading
0:00:01.3 interpolation
0:00:00.1 interpolation_time
0:00:00.9 rotating vectors
0:00:00.0 masking
--------------------
Performance:
3:04.0 total time
4.3 configuration
0.0 preparing main loop
0.0 moving elements to ocean
2:59.6 main loop
5.3 updating elements
0.0 oil weathering
0.0 updating viscosities
0.0 updating densities
4.9 vertical mixing
0.0 cleaning up
--------------------
===========================
Model: OpenOil (OpenDrift version 1.14.9)
1147 active Oil particles (1853 deactivated, 0 scheduled)
-------------------
Environment variables:
-----
horizontal_diffusivity
1) constant_reader
-----
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: 2026-05-29 09:16:50.403949 UTC
Present: 2026-05-31 09:16:50.403949 UTC
Calculation steps: 96 * 0:30:00 - total time: 2 days, 0:00:00
Output steps: 49 * 1:00:00
===========================
09:20:05 INFO opendrift:4777: Saving animation to /root/project/docs/source/gallery/animations/example_oil_ice_0.gif...
09:20:42 INFO opendrift:3200: Time to make animation: 0:00:47.719483
o.plot(background='sea_ice_area_fraction', cmap=cmocean.cm.ice,
vmin=0, vmax=1, bgalpha=1, fast=False)
(<GeoAxes: title={'center': 'OpenDrift - OpenOil (GENERIC BUNKER C)\n2026-05-29 09:16 to 2026-05-31 09:16 UTC (49 steps)'}>, <Figure size 549.876x1100 with 2 Axes>)
Total running time of the script: (4 minutes 10.491 seconds)