.. DO NOT EDIT. .. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY. .. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE: .. "gallery/example_coastline.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_coastline.py: No stranding ============= .. GENERATED FROM PYTHON SOURCE LINES 6-23 .. code-block:: Python import numpy as np from opendrift.readers import reader_netCDF_CF_generic from opendrift.readers import reader_ROMS_native from opendrift.models.oceandrift import OceanDrift o = OceanDrift(loglevel=20) # Set loglevel to 0 for debug information o.set_config('drift:max_speed', 3) # This example works better using hourly input from Thredds than the daily data from test folder reader_current = reader_netCDF_CF_generic.Reader('https://thredds.met.no/thredds/dodsC/cmems/topaz6/dataset-topaz6-arc-15min-3km-be.ncml') #reader_current = reader_ROMS_native.Reader(o.test_data_folder() + # '2Feb2016_Nordic_sigma_3d/Nordic-4km_SLEVELS_avg_00_subset2Feb2016.nc') o.add_reader([reader_current]) o.set_config('general:coastline_action', 'previous') .. rst-class:: sphx-glr-script-out .. code-block:: none 17:08:23 INFO opendrift.models.basemodel:533: OpenDriftSimulation initialised (version 1.11.2 / v1.11.2-17-g1eadfa7) 17:08:23 INFO opendrift.readers.reader_netCDF_CF_generic:102: Opening dataset: https://thredds.met.no/thredds/dodsC/cmems/topaz6/dataset-topaz6-arc-15min-3km-be.ncml 17:08:25 INFO opendrift.readers.reader_netCDF_CF_generic:314: Detected dimensions: {'x': 'x', 'y': 'y', 'time': 'time'} .. GENERATED FROM PYTHON SOURCE LINES 24-25 Seeding elements on a grid .. GENERATED FROM PYTHON SOURCE LINES 25-36 .. code-block:: Python lons = np.linspace(12, 14.5, 30) lats = np.linspace(67.5, 68.5, 30) lons, lats = np.meshgrid(lons, lats) lon = lons.ravel() lat = lats.ravel() time = reader_current.start_time o.seed_elements(lon, lat, radius=0, number=30*30, time=time) o.run(steps=24*2, time_step=3600) .. rst-class:: sphx-glr-script-out .. code-block:: none 17:08:25 INFO opendrift.models.basemodel.environment:218: Adding a dynamical landmask with max. priority based on assumed maximum speed of 3.0 m/s. Adding a customised landmask may be faster... 17:08:31 INFO opendrift.models.basemodel.environment:245: Fallback values will be used for the following variables which have no readers: 17:08:31 INFO opendrift.models.basemodel.environment:248: sea_surface_height: 0.000000 17:08:31 INFO opendrift.models.basemodel.environment:248: x_wind: 0.000000 17:08:31 INFO opendrift.models.basemodel.environment:248: y_wind: 0.000000 17:08:31 INFO opendrift.models.basemodel.environment:248: upward_sea_water_velocity: 0.000000 17:08:31 INFO opendrift.models.basemodel.environment:248: ocean_vertical_diffusivity: 0.000000 17:08:31 INFO opendrift.models.basemodel.environment:248: sea_surface_wave_significant_height: 0.000000 17:08:31 INFO opendrift.models.basemodel.environment:248: sea_surface_wave_stokes_drift_x_velocity: 0.000000 17:08:31 INFO opendrift.models.basemodel.environment:248: sea_surface_wave_stokes_drift_y_velocity: 0.000000 17:08:31 INFO opendrift.models.basemodel.environment:248: sea_surface_wave_period_at_variance_spectral_density_maximum: 0.000000 17:08:31 INFO opendrift.models.basemodel.environment:248: sea_surface_wave_mean_period_from_variance_spectral_density_second_frequency_moment: 0.000000 17:08:31 INFO opendrift.models.basemodel.environment:248: sea_surface_swell_wave_to_direction: 0.000000 17:08:31 INFO opendrift.models.basemodel.environment:248: sea_surface_swell_wave_peak_period_from_variance_spectral_density: 0.000000 17:08:31 INFO opendrift.models.basemodel.environment:248: sea_surface_swell_wave_significant_height: 0.000000 17:08:31 INFO opendrift.models.basemodel.environment:248: sea_surface_wind_wave_to_direction: 0.000000 17:08:31 INFO opendrift.models.basemodel.environment:248: sea_surface_wind_wave_mean_period: 0.000000 17:08:31 INFO opendrift.models.basemodel.environment:248: sea_surface_wind_wave_significant_height: 0.000000 17:08:31 INFO opendrift.models.basemodel.environment:248: surface_downward_x_stress: 0.000000 17:08:31 INFO opendrift.models.basemodel.environment:248: surface_downward_y_stress: 0.000000 17:08:31 INFO opendrift.models.basemodel.environment:248: turbulent_kinetic_energy: 0.000000 17:08:31 INFO opendrift.models.basemodel.environment:248: turbulent_generic_length_scale: 0.000000 17:08:31 INFO opendrift.models.basemodel.environment:248: ocean_mixed_layer_thickness: 50.000000 17:08:31 INFO opendrift.models.basemodel:909: Using existing reader for land_binary_mask 17:08:31 INFO opendrift.models.basemodel:922: Moving 81 out of 900 points from land to water 17:08:31 WARNING opendrift.models.basemodel:706: Seafloor check not being run because sea_surface_height is missing. This will happen the first time the function is run but if it happens subsequently there is probably a problem. 17:08:31 INFO opendrift.models.basemodel:2009: 2018-01-01 00:00:00 - step 1 of 48 - 900 active elements (0 deactivated) /root/project/opendrift/readers/interpolation/interpolators.py:17: RuntimeWarning: overflow encountered in cast data[mask] = np.finfo(np.float64).min 17:08:31 INFO opendrift.models.basemodel:2009: 2018-01-01 01:00:00 - step 2 of 48 - 900 active elements (0 deactivated) 17:08:32 INFO opendrift.models.basemodel:2009: 2018-01-01 02:00:00 - step 3 of 48 - 900 active elements (0 deactivated) 17:08:32 INFO opendrift.models.basemodel:2009: 2018-01-01 03:00:00 - step 4 of 48 - 900 active elements (0 deactivated) 17:08:32 INFO opendrift.models.basemodel:2009: 2018-01-01 04:00:00 - step 5 of 48 - 900 active elements (0 deactivated) 17:08:33 INFO opendrift.models.basemodel:2009: 2018-01-01 05:00:00 - step 6 of 48 - 900 active elements (0 deactivated) 17:08:33 INFO opendrift.models.basemodel:2009: 2018-01-01 06:00:00 - 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GENERATED FROM PYTHON SOURCE LINES 37-38 Print and plot results .. GENERATED FROM PYTHON SOURCE LINES 38-43 .. code-block:: Python print(o) o.plot() #o.plot(background=['x_sea_water_velocity', 'y_sea_water_velocity']) o.animation() .. image-sg:: /gallery/images/sphx_glr_example_coastline_001.png :alt: OpenDrift - OceanDrift 2018-01-01 00:00 to 2018-01-03 00:00 UTC (49 steps) :srcset: /gallery/images/sphx_glr_example_coastline_001.png :class: sphx-glr-single-img .. rst-class:: sphx-glr-script-out .. code-block:: none =========================== -------------------- Reader performance: -------------------- https://thredds.met.no/thredds/dodsC/cmems/topaz6/dataset-topaz6-arc-15min-3km-be.ncml 0:00:20.4 total 0:00:00.0 preparing 0:00:20.3 reading 0:00:00.0 interpolation 0:00:00.0 interpolation_time 0:00:00.1 rotating vectors 0:00:00.0 masking -------------------- global_landmask 0:00:00.0 total 0:00:00.0 preparing 0:00:00.0 reading 0:00:00.0 masking -------------------- Performance: 29.5 total time 7.9 configuration 0.0 preparing main loop 0.0 moving elements to ocean 21.4 main loop 0.0 updating elements 0.0 cleaning up -------------------- =========================== Model: OceanDrift (OpenDrift version 1.11.2) 900 active Lagrangian3DArray particles (0 deactivated, 0 scheduled) ------------------- Environment variables: ----- sea_floor_depth_below_sea_level x_sea_water_velocity y_sea_water_velocity 1) https://thredds.met.no/thredds/dodsC/cmems/topaz6/dataset-topaz6-arc-15min-3km-be.ncml ----- land_binary_mask 1) global_landmask ----- Readers not added for the following variables: ocean_mixed_layer_thickness ocean_vertical_diffusivity sea_surface_height sea_surface_swell_wave_peak_period_from_variance_spectral_density sea_surface_swell_wave_significant_height sea_surface_swell_wave_to_direction sea_surface_wave_mean_period_from_variance_spectral_density_second_frequency_moment sea_surface_wave_period_at_variance_spectral_density_maximum sea_surface_wave_significant_height sea_surface_wave_stokes_drift_x_velocity sea_surface_wave_stokes_drift_y_velocity sea_surface_wind_wave_mean_period sea_surface_wind_wave_significant_height sea_surface_wind_wave_to_direction surface_downward_x_stress surface_downward_y_stress turbulent_generic_length_scale turbulent_kinetic_energy upward_sea_water_velocity x_wind y_wind Discarded readers: Time: Start: 2018-01-01 00:00:00 UTC Present: 2018-01-03 00:00:00 UTC Calculation steps: 48 * 1:00:00 - total time: 2 days, 0:00:00 Output steps: 49 * 1:00:00 =========================== /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) 17:09:17 INFO opendrift.models.basemodel:4561: Saving animation to /root/project/docs/source/gallery/animations/example_coastline_0.gif... 17:11:23 INFO opendrift.models.basemodel:3001: Time to make animation: 0:02:09.348843 .. GENERATED FROM PYTHON SOURCE LINES 44-45 .. image:: /gallery/animations/example_coastline_0.gif .. rst-class:: sphx-glr-timing **Total running time of the script:** (3 minutes 4.903 seconds) .. _sphx_glr_download_gallery_example_coastline.py: .. only:: html .. container:: sphx-glr-footer sphx-glr-footer-example .. container:: sphx-glr-download sphx-glr-download-jupyter :download:`Download Jupyter notebook: example_coastline.ipynb ` .. container:: sphx-glr-download sphx-glr-download-python :download:`Download Python source code: example_coastline.py ` .. only:: html .. rst-class:: sphx-glr-signature `Gallery generated by Sphinx-Gallery `_