.. DO NOT EDIT. .. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY. .. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE: .. "gallery/example_compare.py" .. LINE NUMBERS ARE GIVEN BELOW. .. only:: html .. note:: :class: sphx-glr-download-link-note :ref:`Go to the end ` to download the full example code .. rst-class:: sphx-glr-example-title .. _sphx_glr_gallery_example_compare.py: Compare ============= Comparing two oil drift simulation runs, with and without wind .. GENERATED FROM PYTHON SOURCE LINES 8-43 .. code-block:: Python from datetime import timedelta from opendrift.readers import reader_netCDF_CF_generic from opendrift.models.openoil import OpenOil o = OpenOil(loglevel=20) # Set loglevel to 0 for debug information # Arome atmospheric model reader_arome = reader_netCDF_CF_generic.Reader(o.test_data_folder() + '16Nov2015_NorKyst_z_surface/arome_subset_16Nov2015.nc') # Norkyst ocean model reader_norkyst = reader_netCDF_CF_generic.Reader(o.test_data_folder() + '16Nov2015_NorKyst_z_surface/norkyst800_subset_16Nov2015.nc') o.add_reader([reader_norkyst, reader_arome]) # Seeding some particles lon = 4.5; lat = 60.0; # Outside Bergen time = [reader_arome.start_time, reader_arome.start_time + timedelta(hours=30)] o.seed_elements(lon, lat, radius=50, number=5000, time=time, oil_type='GENERIC HEAVY CRUDE', wind_drift_factor=0.03) # 3% wind drift # Running model o.run(steps=66, time_step=1800, time_step_output=3600) # Second run, for comparison o2 = OpenOil(loglevel=20) # Set loglevel to 0 for debug information o2.add_reader([reader_norkyst, reader_arome]) o2.seed_elements(lon, lat, radius=50, number=5000, time=time, oil_type='GENERIC HEAVY CRUDE', wind_drift_factor=0.0) # No wind drift o2.run(steps=66, time_step=1800, time_step_output=3600) .. rst-class:: sphx-glr-script-out .. code-block:: none 17:06:50 INFO opendrift.models.basemodel:533: OpenDriftSimulation initialised (version 1.11.2 / v1.11.2-17-g1eadfa7) 17:06:50 INFO opendrift.readers.reader_netCDF_CF_generic:102: Opening dataset: /root/project/tests/test_data/16Nov2015_NorKyst_z_surface/arome_subset_16Nov2015.nc 17:06:50 INFO opendrift.readers.reader_netCDF_CF_generic:314: Detected dimensions: {'time': 'time', 'x': 'x', 'y': 'y'} 17:06:50 INFO opendrift.readers.reader_netCDF_CF_generic:102: Opening dataset: /root/project/tests/test_data/16Nov2015_NorKyst_z_surface/norkyst800_subset_16Nov2015.nc 17:06:50 INFO opendrift.readers.reader_netCDF_CF_generic:314: Detected dimensions: {'x': 'X', 'y': 'Y', 'z': 'depth', 'time': 'time'} 17:06:50 INFO opendrift.models.openoil.adios.dirjs:90: Querying ADIOS database for oil: GENERIC HEAVY CRUDE 17:06:50 INFO opendrift.models.openoil.openoil:1720: Using density 938.0 and viscosity 0.0010573364220196155 of oiltype GENERIC HEAVY CRUDE 17:06:50 INFO opendrift.models.basemodel.environment:218: Adding a dynamical landmask with max. priority based on assumed maximum speed of 1.0 m/s. Adding a customised landmask may be faster... 17:06:56 INFO opendrift.models.basemodel.environment:245: Fallback values will be used for the following variables which have no readers: 17:06:56 INFO opendrift.models.basemodel.environment:248: sea_surface_height: 0.000000 17:06:56 INFO opendrift.models.basemodel.environment:248: upward_sea_water_velocity: 0.000000 17:06:56 INFO opendrift.models.basemodel.environment:248: sea_surface_wave_significant_height: 0.000000 17:06:56 INFO opendrift.models.basemodel.environment:248: sea_surface_wave_stokes_drift_x_velocity: 0.000000 17:06:56 INFO opendrift.models.basemodel.environment:248: sea_surface_wave_stokes_drift_y_velocity: 0.000000 17:06:56 INFO opendrift.models.basemodel.environment:248: sea_surface_wave_period_at_variance_spectral_density_maximum: 0.000000 17:06:56 INFO opendrift.models.basemodel.environment:248: sea_surface_wave_mean_period_from_variance_spectral_density_second_frequency_moment: 0.000000 17:06:56 INFO opendrift.models.basemodel.environment:248: sea_ice_area_fraction: 0.000000 17:06:56 INFO opendrift.models.basemodel.environment:248: sea_ice_x_velocity: 0.000000 17:06:56 INFO opendrift.models.basemodel.environment:248: sea_ice_y_velocity: 0.000000 17:06:56 INFO opendrift.models.basemodel.environment:248: sea_water_temperature: 10.000000 17:06:56 INFO opendrift.models.basemodel.environment:248: sea_water_salinity: 34.000000 17:06:56 INFO opendrift.models.basemodel.environment:248: sea_floor_depth_below_sea_level: 10000.000000 17:06:56 INFO opendrift.models.basemodel.environment:248: ocean_vertical_diffusivity: 0.020000 17:06:56 INFO opendrift.models.basemodel.environment:248: ocean_mixed_layer_thickness: 50.000000 17:06:56 INFO opendrift.models.basemodel:909: Using existing reader for land_binary_mask 17:06:56 INFO opendrift.models.basemodel:920: All points are in ocean 17:06:56 INFO opendrift.models.openoil.openoil:688: Oil-water surface tension is 0.033960 Nm 17:06:56 INFO opendrift.models.openoil.openoil:701: Max water fraction not available for GENERIC HEAVY CRUDE, using default 17:06:56 INFO opendrift.models.basemodel:2009: 2015-11-16 00:00:00 - step 1 of 66 - 84 active elements (0 deactivated) 17:06:56 INFO opendrift.models.basemodel:2009: 2015-11-16 00:30:00 - step 2 of 66 - 167 active elements (0 deactivated) 17:06:56 INFO opendrift.models.basemodel:2009: 2015-11-16 01:00:00 - step 3 of 66 - 250 active elements (0 deactivated) 17:06:56 INFO opendrift.models.basemodel:2009: 2015-11-16 01:30:00 - step 4 of 66 - 334 active elements (0 deactivated) 17:06:56 INFO opendrift.models.basemodel:2009: 2015-11-16 02:00:00 - step 5 of 66 - 417 active elements (0 deactivated) 17:06:56 INFO opendrift.models.basemodel:2009: 2015-11-16 02:30:00 - step 6 of 66 - 500 active elements (0 deactivated) 17:06:56 INFO opendrift.models.basemodel:2009: 2015-11-16 03:00:00 - step 7 of 66 - 584 active elements (0 deactivated) 17:06:56 INFO opendrift.models.basemodel:2009: 2015-11-16 03:30:00 - step 8 of 66 - 667 active elements (0 deactivated) 17:06:56 INFO opendrift.models.basemodel:2009: 2015-11-16 04:00:00 - step 9 of 66 - 750 active elements (0 deactivated) 17:06:57 INFO opendrift.models.basemodel:2009: 2015-11-16 04:30:00 - step 10 of 66 - 834 active elements (0 deactivated) 17:06:57 INFO opendrift.models.basemodel:2009: 2015-11-16 05:00:00 - step 11 of 66 - 917 active elements (0 deactivated) 17:06:57 INFO opendrift.models.basemodel:2009: 2015-11-16 05:30:00 - step 12 of 66 - 1000 active elements (0 deactivated) 17:06:57 INFO opendrift.models.basemodel:2009: 2015-11-16 06:00:00 - step 13 of 66 - 1084 active elements (0 deactivated) 17:06:57 INFO opendrift.models.basemodel:2009: 2015-11-16 06:30:00 - step 14 of 66 - 1167 active elements (0 deactivated) 17:06:57 INFO opendrift.models.basemodel:2009: 2015-11-16 07:00:00 - step 15 of 66 - 1250 active elements (0 deactivated) 17:06:57 INFO opendrift.models.basemodel:2009: 2015-11-16 07:30:00 - step 16 of 66 - 1334 active elements (0 deactivated) 17:06:57 INFO opendrift.models.basemodel:2009: 2015-11-16 08:00:00 - step 17 of 66 - 1417 active elements (0 deactivated) 17:06:57 INFO opendrift.models.basemodel:2009: 2015-11-16 08:30:00 - step 18 of 66 - 1500 active elements (0 deactivated) 17:06:57 INFO opendrift.models.basemodel:2009: 2015-11-16 09:00:00 - 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step 28 of 66 - 2333 active elements (0 deactivated) 17:06:59 INFO opendrift.models.basemodel:2009: 2015-11-16 14:00:00 - step 29 of 66 - 2417 active elements (0 deactivated) 17:06:59 INFO opendrift.models.basemodel:2009: 2015-11-16 14:30:00 - step 30 of 66 - 2500 active elements (0 deactivated) 17:06:59 INFO opendrift.models.basemodel:2009: 2015-11-16 15:00:00 - step 31 of 66 - 2583 active elements (0 deactivated) 17:06:59 INFO opendrift.models.basemodel:2009: 2015-11-16 15:30:00 - step 32 of 66 - 2667 active elements (0 deactivated) 17:06:59 INFO opendrift.models.basemodel:2009: 2015-11-16 16:00:00 - step 33 of 66 - 2750 active elements (0 deactivated) 17:06:59 INFO opendrift.models.basemodel:2009: 2015-11-16 16:30:00 - step 34 of 66 - 2833 active elements (0 deactivated) 17:06:59 INFO opendrift.models.basemodel:2009: 2015-11-16 17:00:00 - step 35 of 66 - 2917 active elements (0 deactivated) 17:07:00 INFO opendrift.models.basemodel:2009: 2015-11-16 17:30:00 - step 36 of 66 - 3000 active elements (0 deactivated) 17:07:00 INFO opendrift.models.basemodel:2009: 2015-11-16 18:00:00 - step 37 of 66 - 3083 active elements (0 deactivated) 17:07:00 INFO opendrift.models.basemodel:2009: 2015-11-16 18:30:00 - step 38 of 66 - 3167 active elements (0 deactivated) 17:07:00 INFO opendrift.models.basemodel:2009: 2015-11-16 19:00:00 - step 39 of 66 - 3250 active elements (0 deactivated) 17:07:00 INFO opendrift.models.basemodel:2009: 2015-11-16 19:30:00 - step 40 of 66 - 3333 active elements (0 deactivated) 17:07:00 WARNING opendrift.readers.basereader.structured:321: Data block from /root/project/tests/test_data/16Nov2015_NorKyst_z_surface/norkyst800_subset_16Nov2015.nc not large enough to cover element positions within timestep. Buffer size (7) must be increased. See `Variables.set_buffer_size`. 17:07:00 INFO opendrift.models.basemodel:2009: 2015-11-16 20:00:00 - step 41 of 66 - 3416 active elements (0 deactivated) 17:07:01 INFO opendrift.models.basemodel:2009: 2015-11-16 20:30:00 - step 42 of 66 - 3500 active elements (0 deactivated) 17:07:01 INFO opendrift.models.basemodel:2009: 2015-11-16 21:00:00 - step 43 of 66 - 3583 active elements (0 deactivated) 17:07:01 INFO opendrift.models.basemodel:2009: 2015-11-16 21:30:00 - step 44 of 66 - 3664 active elements (2 deactivated) 17:07:01 INFO opendrift.models.basemodel:2009: 2015-11-16 22:00:00 - step 45 of 66 - 3748 active elements (2 deactivated) 17:07:01 INFO opendrift.models.basemodel:2009: 2015-11-16 22:30:00 - step 46 of 66 - 3829 active elements (4 deactivated) 17:07:02 INFO opendrift.models.basemodel:2009: 2015-11-16 23:00:00 - step 47 of 66 - 3910 active elements (6 deactivated) 17:07:02 INFO opendrift.models.basemodel:2009: 2015-11-16 23:30:00 - step 48 of 66 - 3990 active elements (10 deactivated) 17:07:02 INFO opendrift.models.basemodel:2009: 2015-11-17 00:00:00 - step 49 of 66 - 4061 active elements (22 deactivated) 17:07:02 INFO opendrift.models.basemodel:2009: 2015-11-17 00:30:00 - step 50 of 66 - 4123 active elements (43 deactivated) 17:07:03 INFO opendrift.models.basemodel:2009: 2015-11-17 01:00:00 - step 51 of 66 - 4149 active elements (101 deactivated) 17:07:03 INFO opendrift.models.basemodel:2009: 2015-11-17 01:30:00 - step 52 of 66 - 4116 active elements (217 deactivated) 17:07:03 INFO opendrift.models.basemodel:2009: 2015-11-17 02:00:00 - step 53 of 66 - 4039 active elements (377 deactivated) 17:07:03 INFO opendrift.models.basemodel:2009: 2015-11-17 02:30:00 - step 54 of 66 - 3960 active elements (540 deactivated) 17:07:03 INFO opendrift.models.basemodel:2009: 2015-11-17 03:00:00 - step 55 of 66 - 3823 active elements (760 deactivated) 17:07:04 INFO opendrift.models.basemodel:2009: 2015-11-17 03:30:00 - step 56 of 66 - 3731 active elements (935 deactivated) 17:07:04 INFO opendrift.models.basemodel:2009: 2015-11-17 04:00:00 - step 57 of 66 - 3645 active elements (1105 deactivated) 17:07:04 INFO opendrift.models.basemodel:2009: 2015-11-17 04:30:00 - step 58 of 66 - 3558 active elements (1275 deactivated) 17:07:04 INFO opendrift.models.basemodel:2009: 2015-11-17 05:00:00 - step 59 of 66 - 3517 active elements (1399 deactivated) 17:07:04 INFO opendrift.models.basemodel:2009: 2015-11-17 05:30:00 - step 60 of 66 - 3501 active elements (1498 deactivated) 17:07:05 INFO opendrift.models.basemodel:2009: 2015-11-17 06:00:00 - step 61 of 66 - 3400 active elements (1600 deactivated) 17:07:05 INFO opendrift.models.basemodel:2009: 2015-11-17 06:30:00 - step 62 of 66 - 3323 active elements (1677 deactivated) 17:07:05 INFO opendrift.models.basemodel:2009: 2015-11-17 07:00:00 - step 63 of 66 - 3246 active elements (1754 deactivated) 17:07:05 INFO opendrift.models.basemodel:2009: 2015-11-17 07:30:00 - step 64 of 66 - 3128 active elements (1872 deactivated) 17:07:05 INFO opendrift.models.basemodel:2009: 2015-11-17 08:00:00 - step 65 of 66 - 2879 active elements (2121 deactivated) 17:07:05 INFO opendrift.models.basemodel:2009: 2015-11-17 08:30:00 - step 66 of 66 - 2640 active elements (2360 deactivated) 17:07:06 INFO opendrift.models.basemodel:533: OpenDriftSimulation initialised (version 1.11.2 / v1.11.2-17-g1eadfa7) 17:07:06 INFO opendrift.models.openoil.adios.dirjs:90: Querying ADIOS database for oil: GENERIC HEAVY CRUDE 17:07:06 INFO opendrift.models.openoil.openoil:1720: Using density 938.0 and viscosity 0.0010573364220196155 of oiltype GENERIC HEAVY CRUDE 17:07:06 INFO opendrift.models.basemodel.environment:218: Adding a dynamical landmask with max. priority based on assumed maximum speed of 1.0 m/s. Adding a customised landmask may be faster... 17:07:06 INFO opendrift.models.basemodel.environment:245: Fallback values will be used for the following variables which have no readers: 17:07:06 INFO opendrift.models.basemodel.environment:248: sea_surface_height: 0.000000 17:07:06 INFO opendrift.models.basemodel.environment:248: upward_sea_water_velocity: 0.000000 17:07:06 INFO opendrift.models.basemodel.environment:248: sea_surface_wave_significant_height: 0.000000 17:07:06 INFO opendrift.models.basemodel.environment:248: sea_surface_wave_stokes_drift_x_velocity: 0.000000 17:07:06 INFO opendrift.models.basemodel.environment:248: sea_surface_wave_stokes_drift_y_velocity: 0.000000 17:07:06 INFO opendrift.models.basemodel.environment:248: sea_surface_wave_period_at_variance_spectral_density_maximum: 0.000000 17:07:06 INFO opendrift.models.basemodel.environment:248: sea_surface_wave_mean_period_from_variance_spectral_density_second_frequency_moment: 0.000000 17:07:06 INFO opendrift.models.basemodel.environment:248: sea_ice_area_fraction: 0.000000 17:07:06 INFO opendrift.models.basemodel.environment:248: sea_ice_x_velocity: 0.000000 17:07:06 INFO opendrift.models.basemodel.environment:248: sea_ice_y_velocity: 0.000000 17:07:06 INFO opendrift.models.basemodel.environment:248: sea_water_temperature: 10.000000 17:07:06 INFO opendrift.models.basemodel.environment:248: sea_water_salinity: 34.000000 17:07:06 INFO opendrift.models.basemodel.environment:248: sea_floor_depth_below_sea_level: 10000.000000 17:07:06 INFO opendrift.models.basemodel.environment:248: ocean_vertical_diffusivity: 0.020000 17:07:06 INFO opendrift.models.basemodel.environment:248: ocean_mixed_layer_thickness: 50.000000 17:07:06 INFO opendrift.models.basemodel:909: Using existing reader for land_binary_mask 17:07:06 INFO opendrift.models.basemodel:920: All points are in ocean 17:07:06 INFO opendrift.models.openoil.openoil:688: Oil-water surface tension is 0.033960 Nm 17:07:06 INFO opendrift.models.openoil.openoil:701: Max water fraction not available for GENERIC HEAVY CRUDE, using default 17:07:06 INFO opendrift.models.basemodel:2009: 2015-11-16 00:00:00 - step 1 of 66 - 84 active elements (0 deactivated) 17:07:06 INFO opendrift.models.basemodel:2009: 2015-11-16 00:30:00 - step 2 of 66 - 167 active elements (0 deactivated) 17:07:06 INFO opendrift.models.basemodel:2009: 2015-11-16 01:00:00 - step 3 of 66 - 250 active elements (0 deactivated) 17:07:06 INFO opendrift.models.basemodel:2009: 2015-11-16 01:30:00 - step 4 of 66 - 334 active elements (0 deactivated) 17:07:06 INFO opendrift.models.basemodel:2009: 2015-11-16 02:00:00 - step 5 of 66 - 417 active elements (0 deactivated) 17:07:06 INFO opendrift.models.basemodel:2009: 2015-11-16 02:30:00 - step 6 of 66 - 500 active elements (0 deactivated) 17:07:06 INFO opendrift.models.basemodel:2009: 2015-11-16 03:00:00 - step 7 of 66 - 584 active elements (0 deactivated) 17:07:06 INFO opendrift.models.basemodel:2009: 2015-11-16 03:30:00 - step 8 of 66 - 667 active elements (0 deactivated) 17:07:06 INFO opendrift.models.basemodel:2009: 2015-11-16 04:00:00 - step 9 of 66 - 750 active elements (0 deactivated) 17:07:07 INFO opendrift.models.basemodel:2009: 2015-11-16 04:30:00 - step 10 of 66 - 834 active elements (0 deactivated) 17:07:07 INFO opendrift.models.basemodel:2009: 2015-11-16 05:00:00 - step 11 of 66 - 917 active elements (0 deactivated) 17:07:07 INFO opendrift.models.basemodel:2009: 2015-11-16 05:30:00 - step 12 of 66 - 1000 active elements (0 deactivated) 17:07:07 INFO opendrift.models.basemodel:2009: 2015-11-16 06:00:00 - step 13 of 66 - 1084 active elements (0 deactivated) 17:07:07 INFO opendrift.models.basemodel:2009: 2015-11-16 06:30:00 - step 14 of 66 - 1167 active elements (0 deactivated) 17:07:07 INFO opendrift.models.basemodel:2009: 2015-11-16 07:00:00 - step 15 of 66 - 1250 active elements (0 deactivated) 17:07:07 INFO opendrift.models.basemodel:2009: 2015-11-16 07:30:00 - step 16 of 66 - 1334 active elements (0 deactivated) 17:07:07 INFO opendrift.models.basemodel:2009: 2015-11-16 08:00:00 - step 17 of 66 - 1417 active elements (0 deactivated) 17:07:07 INFO opendrift.models.basemodel:2009: 2015-11-16 08:30:00 - step 18 of 66 - 1500 active elements (0 deactivated) 17:07:07 INFO opendrift.models.basemodel:2009: 2015-11-16 09:00:00 - step 19 of 66 - 1584 active elements (0 deactivated) 17:07:08 INFO opendrift.models.basemodel:2009: 2015-11-16 09:30:00 - step 20 of 66 - 1667 active elements (0 deactivated) 17:07:08 INFO opendrift.models.basemodel:2009: 2015-11-16 10:00:00 - step 21 of 66 - 1750 active elements (0 deactivated) 17:07:08 INFO opendrift.models.basemodel:2009: 2015-11-16 10:30:00 - step 22 of 66 - 1833 active elements (0 deactivated) 17:07:08 INFO opendrift.models.basemodel:2009: 2015-11-16 11:00:00 - step 23 of 66 - 1917 active elements (0 deactivated) 17:07:08 INFO opendrift.models.basemodel:2009: 2015-11-16 11:30:00 - step 24 of 66 - 2000 active elements (0 deactivated) 17:07:08 INFO opendrift.models.basemodel:2009: 2015-11-16 12:00:00 - step 25 of 66 - 2083 active elements (0 deactivated) 17:07:08 INFO opendrift.models.basemodel:2009: 2015-11-16 12:30:00 - step 26 of 66 - 2167 active elements (0 deactivated) 17:07:08 INFO opendrift.models.basemodel:2009: 2015-11-16 13:00:00 - step 27 of 66 - 2250 active elements (0 deactivated) 17:07:09 INFO opendrift.models.basemodel:2009: 2015-11-16 13:30:00 - 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GENERATED FROM PYTHON SOURCE LINES 44-46 Animate and compare the two runs. We see that there is much more stranding of oil when wind is considered. .. GENERATED FROM PYTHON SOURCE LINES 46-49 .. code-block:: Python o.animation(fast=True, compare=o2, legend=['Current + 3 % wind drift', 'Current only']) .. rst-class:: sphx-glr-script-out .. code-block:: none 17:07:16 WARNING opendrift.models.basemodel:2377: Plotting fast. This will make your plots less accurate. /opt/conda/envs/opendrift/lib/python3.11/site-packages/cartopy/mpl/geoaxes.py:1696: UserWarning: No data for colormapping provided via 'c'. Parameters 'cmap' will be ignored result = super().scatter(*args, **kwargs) 17:07:18 INFO opendrift.models.basemodel:4561: Saving animation to /root/project/docs/source/gallery/animations/example_compare_0.gif... 17:07:27 INFO opendrift.models.basemodel:3001: Time to make animation: 0:00:10.360393 .. GENERATED FROM PYTHON SOURCE LINES 50-51 .. image:: /gallery/animations/example_compare_0.gif .. GENERATED FROM PYTHON SOURCE LINES 51-54 .. code-block:: Python o.plot(fast=True, compare=o2, legend=['Current + 3 % wind drift', 'Current only']) .. image-sg:: /gallery/images/sphx_glr_example_compare_001.png :alt: OpenDrift - OpenOil (GENERIC HEAVY CRUDE) 2015-11-16 00:00 to 2015-11-17 09:00 UTC (34 steps) :srcset: /gallery/images/sphx_glr_example_compare_001.png :class: sphx-glr-single-img .. rst-class:: sphx-glr-script-out .. code-block:: none 17:07:27 WARNING opendrift.models.basemodel:2377: Plotting fast. This will make your plots less accurate. (,
) .. rst-class:: sphx-glr-timing **Total running time of the script:** (1 minutes 3.197 seconds) .. _sphx_glr_download_gallery_example_compare.py: .. only:: html .. container:: sphx-glr-footer sphx-glr-footer-example .. container:: sphx-glr-download sphx-glr-download-jupyter :download:`Download Jupyter notebook: example_compare.ipynb ` .. container:: sphx-glr-download sphx-glr-download-python :download:`Download Python source code: example_compare.py ` .. only:: html .. rst-class:: sphx-glr-signature `Gallery generated by Sphinx-Gallery `_