Grid time

from datetime import timedelta
import numpy as np
from opendrift.readers import reader_global_landmask
from opendrift.readers import reader_netCDF_CF_generic
from opendrift.models.oceandrift import OceanDrift

# Seeding at a grid at regular interval
o = OceanDrift(loglevel=20)  # Set loglevel to 0 for debug information

reader_norkyst = reader_netCDF_CF_generic.Reader(o.test_data_folder() +
    '16Nov2015_NorKyst_z_surface/norkyst800_subset_16Nov2015.nc')

Out:

13:46:37 INFO    opendrift.models.basemodel: OpenDriftSimulation initialised (version 1.7.1 / v1.7.1-87-g074c1d2)
13:46:37 INFO    opendrift.readers.reader_netCDF_CF_generic: Opening dataset: /root/project/tests/test_data/16Nov2015_NorKyst_z_surface/norkyst800_subset_16Nov2015.nc

Landmask

reader_landmask = reader_global_landmask.Reader(
                    extent=[4.0, 5.5, 59.9, 61.2])

o.add_reader([reader_landmask, reader_norkyst])

Seeding some particles

lons = np.linspace(4.4, 4.6, 10)
lats = np.linspace(60.0, 60.1, 10)
lons, lats = np.meshgrid(lons, lats)
lons = lons.ravel()
lats = lats.ravel()

Seed oil elements on a grid at regular time interval

start_time = reader_norkyst.start_time
time_step = timedelta(hours=6)
num_steps = 10
for i in range(num_steps+1):
    o.seed_elements(lons, lats, radius=0, number=100,
                    time=start_time + i*time_step)

Running model for 60 hours

o.run(steps=60*4, time_step=900, time_step_output=3600)

Out:

13:46:41 INFO    opendrift.models.basemodel: Fallback values will be used for the following variables which have no readers:
13:46:41 INFO    opendrift.models.basemodel:    x_wind: 0.000000
13:46:41 INFO    opendrift.models.basemodel:    y_wind: 0.000000
13:46:41 INFO    opendrift.models.basemodel:    upward_sea_water_velocity: 0.000000
13:46:41 INFO    opendrift.models.basemodel:    ocean_vertical_diffusivity: 0.000000
13:46:41 INFO    opendrift.models.basemodel:    sea_surface_wave_significant_height: 0.000000
13:46:41 INFO    opendrift.models.basemodel:    sea_surface_wave_stokes_drift_x_velocity: 0.000000
13:46:41 INFO    opendrift.models.basemodel:    sea_surface_wave_stokes_drift_y_velocity: 0.000000
13:46:41 INFO    opendrift.models.basemodel:    sea_surface_wave_period_at_variance_spectral_density_maximum: 0.000000
13:46:41 INFO    opendrift.models.basemodel:    sea_surface_wave_mean_period_from_variance_spectral_density_second_frequency_moment: 0.000000
13:46:41 INFO    opendrift.models.basemodel:    surface_downward_x_stress: 0.000000
13:46:41 INFO    opendrift.models.basemodel:    surface_downward_y_stress: 0.000000
13:46:41 INFO    opendrift.models.basemodel:    turbulent_kinetic_energy: 0.000000
13:46:41 INFO    opendrift.models.basemodel:    turbulent_generic_length_scale: 0.000000
13:46:41 INFO    opendrift.models.basemodel:    sea_floor_depth_below_sea_level: 10000.000000
13:46:41 INFO    opendrift.models.basemodel: Using existing reader for land_binary_mask
13:46:41 INFO    opendrift.models.basemodel: All points are in ocean
13:46:41 INFO    opendrift.models.basemodel: 2015-11-16 00:00:00 - step 1 of 240 - 100 active elements (0 deactivated)
13:46:41 INFO    opendrift.models.basemodel: 2015-11-16 00:15:00 - step 2 of 240 - 100 active elements (0 deactivated)
13:46:41 INFO    opendrift.models.basemodel: 2015-11-16 00:30:00 - step 3 of 240 - 100 active elements (0 deactivated)
13:46:41 INFO    opendrift.models.basemodel: 2015-11-16 00:45:00 - step 4 of 240 - 100 active elements (0 deactivated)
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13:46:41 WARNING opendrift.readers.basereader.structured: 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`.
13:46:41 INFO    opendrift.models.basemodel: 2015-11-16 06:15:00 - step 26 of 240 - 200 active elements (0 deactivated)
13:46:41 WARNING opendrift.readers.basereader.structured: 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`.
13:46:41 INFO    opendrift.models.basemodel: 2015-11-16 06:30:00 - step 27 of 240 - 200 active elements (0 deactivated)
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13:46:42 WARNING opendrift.readers.basereader.structured: 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`.
13:46:42 INFO    opendrift.models.basemodel: 2015-11-16 12:15:00 - step 50 of 240 - 300 active elements (0 deactivated)
13:46:42 WARNING opendrift.readers.basereader.structured: 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`.
13:46:42 INFO    opendrift.models.basemodel: 2015-11-16 12:30:00 - step 51 of 240 - 300 active elements (0 deactivated)
13:46:42 WARNING opendrift.readers.basereader.structured: 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`.
13:46:42 INFO    opendrift.models.basemodel: 2015-11-16 12:45:00 - step 52 of 240 - 300 active elements (0 deactivated)
13:46:42 WARNING opendrift.readers.basereader.structured: 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`.
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13:46:42 WARNING opendrift.readers.basereader.structured: 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`.
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13:46:43 WARNING opendrift.readers.basereader.structured: 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`.
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13:46:43 WARNING opendrift.readers.basereader.structured: 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`.
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13:46:43 WARNING opendrift.readers.basereader.structured: 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`.
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13:46:43 WARNING opendrift.readers.basereader.structured: 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`.
13:46:43 INFO    opendrift.models.basemodel: 2015-11-17 00:45:00 - step 100 of 240 - 500 active elements (0 deactivated)
13:46:43 WARNING opendrift.readers.basereader.structured: 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`.
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13:46:43 WARNING opendrift.readers.basereader.structured: 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`.
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13:46:43 WARNING opendrift.readers.basereader.structured: 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`.
13:46:43 INFO    opendrift.models.basemodel: 2015-11-17 06:00:00 - step 121 of 240 - 600 active elements (0 deactivated)
13:46:43 WARNING opendrift.readers.basereader.structured: 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`.
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13:46:43 WARNING opendrift.readers.basereader.structured: 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`.
13:46:43 INFO    opendrift.models.basemodel: 2015-11-17 06:30:00 - step 123 of 240 - 600 active elements (0 deactivated)
13:46:43 WARNING opendrift.readers.basereader.structured: 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`.
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13:46:43 WARNING opendrift.readers.basereader.structured: 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`.
13:46:43 INFO    opendrift.models.basemodel: 2015-11-17 07:00:00 - step 125 of 240 - 600 active elements (0 deactivated)
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13:46:43 INFO    opendrift.models.basemodel: 2015-11-17 07:30:00 - step 127 of 240 - 600 active elements (0 deactivated)
13:46:43 INFO    opendrift.models.basemodel: 2015-11-17 07:45:00 - step 128 of 240 - 600 active elements (0 deactivated)
13:46:43 WARNING opendrift.readers.basereader.structured: 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`.
13:46:43 INFO    opendrift.models.basemodel: 2015-11-17 08:00:00 - step 129 of 240 - 600 active elements (0 deactivated)
13:46:43 INFO    opendrift.models.basemodel: 2015-11-17 08:15:00 - step 130 of 240 - 600 active elements (0 deactivated)
13:46:43 INFO    opendrift.models.basemodel: 2015-11-17 08:30:00 - step 131 of 240 - 600 active elements (0 deactivated)
13:46:43 INFO    opendrift.models.basemodel: 2015-11-17 08:45:00 - step 132 of 240 - 600 active elements (0 deactivated)
13:46:43 WARNING opendrift.readers.basereader.structured: 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`.
13:46:43 INFO    opendrift.models.basemodel: 2015-11-17 09:00:00 - step 133 of 240 - 600 active elements (0 deactivated)
13:46:43 INFO    opendrift.models.basemodel: 2015-11-17 09:15:00 - step 134 of 240 - 600 active elements (0 deactivated)
13:46:43 INFO    opendrift.models.basemodel: 2015-11-17 09:30:00 - step 135 of 240 - 600 active elements (0 deactivated)
13:46:43 INFO    opendrift.models.basemodel: 2015-11-17 09:45:00 - step 136 of 240 - 600 active elements (0 deactivated)
13:46:43 WARNING opendrift.readers.basereader.structured: 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`.
13:46:44 INFO    opendrift.models.basemodel: 2015-11-17 10:00:00 - step 137 of 240 - 600 active elements (0 deactivated)
13:46:44 INFO    opendrift.models.basemodel: 2015-11-17 10:15:00 - step 138 of 240 - 600 active elements (0 deactivated)
13:46:44 INFO    opendrift.models.basemodel: 2015-11-17 10:30:00 - step 139 of 240 - 600 active elements (0 deactivated)
13:46:44 WARNING opendrift.readers.basereader.structured: 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`.
13:46:44 INFO    opendrift.models.basemodel: 2015-11-17 10:45:00 - step 140 of 240 - 600 active elements (0 deactivated)
13:46:44 WARNING opendrift.readers.basereader.structured: 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`.
13:46:44 INFO    opendrift.models.basemodel: 2015-11-17 11:00:00 - step 141 of 240 - 600 active elements (0 deactivated)
13:46:44 INFO    opendrift.models.basemodel: 2015-11-17 11:15:00 - step 142 of 240 - 600 active elements (0 deactivated)
13:46:44 INFO    opendrift.models.basemodel: 2015-11-17 11:30:00 - step 143 of 240 - 600 active elements (0 deactivated)
13:46:44 WARNING opendrift.readers.basereader.structured: 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`.
13:46:44 INFO    opendrift.models.basemodel: 2015-11-17 11:45:00 - step 144 of 240 - 600 active elements (0 deactivated)
13:46:44 WARNING opendrift.readers.basereader.structured: 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`.
13:46:44 INFO    opendrift.models.basemodel: 2015-11-17 12:00:00 - step 145 of 240 - 700 active elements (0 deactivated)
13:46:44 WARNING opendrift.readers.basereader.structured: 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`.
13:46:44 INFO    opendrift.models.basemodel: 2015-11-17 12:15:00 - step 146 of 240 - 700 active elements (0 deactivated)
13:46:44 WARNING opendrift.readers.basereader.structured: 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`.
13:46:44 INFO    opendrift.models.basemodel: 2015-11-17 12:30:00 - step 147 of 240 - 700 active elements (0 deactivated)
13:46:44 WARNING opendrift.readers.basereader.structured: 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`.
13:46:44 INFO    opendrift.models.basemodel: 2015-11-17 12:45:00 - step 148 of 240 - 699 active elements (1 deactivated)
13:46:44 WARNING opendrift.readers.basereader.structured: 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`.
13:46:44 INFO    opendrift.models.basemodel: 2015-11-17 13:00:00 - step 149 of 240 - 699 active elements (1 deactivated)
13:46:44 INFO    opendrift.models.basemodel: 2015-11-17 13:15:00 - step 150 of 240 - 699 active elements (1 deactivated)
13:46:44 INFO    opendrift.models.basemodel: 2015-11-17 13:30:00 - step 151 of 240 - 699 active elements (1 deactivated)
13:46:44 WARNING opendrift.readers.basereader.structured: 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`.
13:46:44 INFO    opendrift.models.basemodel: 2015-11-17 13:45:00 - step 152 of 240 - 698 active elements (2 deactivated)
13:46:44 WARNING opendrift.readers.basereader.structured: 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`.
13:46:44 INFO    opendrift.models.basemodel: 2015-11-17 14:00:00 - step 153 of 240 - 698 active elements (2 deactivated)
13:46:44 INFO    opendrift.models.basemodel: 2015-11-17 14:15:00 - step 154 of 240 - 698 active elements (2 deactivated)
13:46:44 INFO    opendrift.models.basemodel: 2015-11-17 14:30:00 - step 155 of 240 - 698 active elements (2 deactivated)
13:46:44 INFO    opendrift.models.basemodel: 2015-11-17 14:45:00 - step 156 of 240 - 698 active elements (2 deactivated)
13:46:44 INFO    opendrift.models.basemodel: 2015-11-17 15:00:00 - step 157 of 240 - 698 active elements (2 deactivated)
13:46:44 INFO    opendrift.models.basemodel: 2015-11-17 15:15:00 - step 158 of 240 - 698 active elements (2 deactivated)
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13:46:44 INFO    opendrift.models.basemodel: 2015-11-17 15:45:00 - step 160 of 240 - 698 active elements (2 deactivated)
13:46:44 INFO    opendrift.models.basemodel: 2015-11-17 16:00:00 - step 161 of 240 - 698 active elements (2 deactivated)
13:46:44 INFO    opendrift.models.basemodel: 2015-11-17 16:15:00 - step 162 of 240 - 698 active elements (2 deactivated)
13:46:44 INFO    opendrift.models.basemodel: 2015-11-17 16:30:00 - step 163 of 240 - 698 active elements (2 deactivated)
13:46:44 INFO    opendrift.models.basemodel: 2015-11-17 16:45:00 - step 164 of 240 - 698 active elements (2 deactivated)
13:46:44 INFO    opendrift.models.basemodel: 2015-11-17 17:00:00 - step 165 of 240 - 697 active elements (3 deactivated)
13:46:44 INFO    opendrift.models.basemodel: 2015-11-17 17:15:00 - step 166 of 240 - 697 active elements (3 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-17 17:30:00 - step 167 of 240 - 696 active elements (4 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-17 17:45:00 - step 168 of 240 - 696 active elements (4 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-17 18:00:00 - step 169 of 240 - 795 active elements (5 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-17 18:15:00 - step 170 of 240 - 795 active elements (5 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-17 18:30:00 - step 171 of 240 - 795 active elements (5 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-17 18:45:00 - step 172 of 240 - 793 active elements (7 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-17 19:00:00 - step 173 of 240 - 792 active elements (8 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-17 19:15:00 - step 174 of 240 - 791 active elements (9 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-17 19:30:00 - step 175 of 240 - 791 active elements (9 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-17 19:45:00 - step 176 of 240 - 791 active elements (9 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-17 20:00:00 - step 177 of 240 - 789 active elements (11 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-17 20:15:00 - step 178 of 240 - 783 active elements (17 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-17 20:30:00 - step 179 of 240 - 781 active elements (19 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-17 20:45:00 - step 180 of 240 - 780 active elements (20 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-17 21:00:00 - step 181 of 240 - 780 active elements (20 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-17 21:15:00 - step 182 of 240 - 778 active elements (22 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-17 21:30:00 - step 183 of 240 - 777 active elements (23 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-17 21:45:00 - step 184 of 240 - 776 active elements (24 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-17 22:00:00 - step 185 of 240 - 776 active elements (24 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-17 22:15:00 - step 186 of 240 - 774 active elements (26 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-17 22:30:00 - step 187 of 240 - 770 active elements (30 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-17 22:45:00 - step 188 of 240 - 770 active elements (30 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-17 23:00:00 - step 189 of 240 - 770 active elements (30 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-17 23:15:00 - step 190 of 240 - 768 active elements (32 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-17 23:30:00 - step 191 of 240 - 768 active elements (32 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-17 23:45:00 - step 192 of 240 - 768 active elements (32 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-18 00:00:00 - step 193 of 240 - 867 active elements (33 deactivated)
13:46:45 WARNING opendrift.readers.basereader.structured: 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`.
13:46:45 INFO    opendrift.models.basemodel: 2015-11-18 00:15:00 - step 194 of 240 - 862 active elements (38 deactivated)
13:46:45 WARNING opendrift.readers.basereader.structured: 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`.
13:46:45 INFO    opendrift.models.basemodel: 2015-11-18 00:30:00 - step 195 of 240 - 861 active elements (39 deactivated)
13:46:45 WARNING opendrift.readers.basereader.structured: 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`.
13:46:45 INFO    opendrift.models.basemodel: 2015-11-18 00:45:00 - step 196 of 240 - 859 active elements (41 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-18 01:00:00 - step 197 of 240 - 857 active elements (43 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-18 01:15:00 - step 198 of 240 - 856 active elements (44 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-18 01:30:00 - step 199 of 240 - 855 active elements (45 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-18 01:45:00 - step 200 of 240 - 854 active elements (46 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-18 02:00:00 - step 201 of 240 - 853 active elements (47 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-18 02:15:00 - step 202 of 240 - 852 active elements (48 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-18 02:30:00 - step 203 of 240 - 849 active elements (51 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-18 02:45:00 - step 204 of 240 - 847 active elements (53 deactivated)
13:46:45 INFO    opendrift.models.basemodel: 2015-11-18 03:00:00 - step 205 of 240 - 845 active elements (55 deactivated)
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 03:15:00 - step 206 of 240 - 844 active elements (56 deactivated)
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 03:30:00 - step 207 of 240 - 844 active elements (56 deactivated)
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 03:45:00 - step 208 of 240 - 842 active elements (58 deactivated)
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 04:00:00 - step 209 of 240 - 840 active elements (60 deactivated)
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 04:15:00 - step 210 of 240 - 838 active elements (62 deactivated)
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 04:30:00 - step 211 of 240 - 836 active elements (64 deactivated)
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 04:45:00 - step 212 of 240 - 835 active elements (65 deactivated)
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 05:00:00 - step 213 of 240 - 834 active elements (66 deactivated)
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 05:15:00 - step 214 of 240 - 834 active elements (66 deactivated)
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 05:30:00 - step 215 of 240 - 833 active elements (67 deactivated)
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 05:45:00 - step 216 of 240 - 831 active elements (69 deactivated)
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 06:00:00 - step 217 of 240 - 931 active elements (69 deactivated)
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 06:15:00 - step 218 of 240 - 929 active elements (71 deactivated)
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 06:30:00 - step 219 of 240 - 929 active elements (71 deactivated)
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 06:45:00 - step 220 of 240 - 928 active elements (72 deactivated)
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 07:00:00 - step 221 of 240 - 927 active elements (73 deactivated)
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 07:15:00 - step 222 of 240 - 927 active elements (73 deactivated)
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 07:30:00 - step 223 of 240 - 927 active elements (73 deactivated)
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 07:45:00 - step 224 of 240 - 926 active elements (74 deactivated)
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 08:00:00 - step 225 of 240 - 924 active elements (76 deactivated)
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 08:15:00 - step 226 of 240 - 923 active elements (77 deactivated)
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 08:30:00 - step 227 of 240 - 923 active elements (77 deactivated)
13:46:46 WARNING opendrift.models.basemodel: Missing variables: ['land_binary_mask']
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 08:45:00 - step 228 of 240 - 921 active elements (79 deactivated)
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 09:00:00 - step 229 of 240 - 919 active elements (81 deactivated)
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 09:15:00 - step 230 of 240 - 917 active elements (83 deactivated)
13:46:46 WARNING opendrift.models.basemodel: Missing variables: ['land_binary_mask']
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 09:30:00 - step 231 of 240 - 911 active elements (89 deactivated)
13:46:46 WARNING opendrift.models.basemodel: Missing variables: ['land_binary_mask']
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 09:45:00 - step 232 of 240 - 902 active elements (98 deactivated)
13:46:46 WARNING opendrift.models.basemodel: Missing variables: ['land_binary_mask']
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 10:00:00 - step 233 of 240 - 897 active elements (103 deactivated)
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 10:15:00 - step 234 of 240 - 897 active elements (103 deactivated)
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 10:30:00 - step 235 of 240 - 897 active elements (103 deactivated)
13:46:46 WARNING opendrift.models.basemodel: Missing variables: ['land_binary_mask']
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 10:45:00 - step 236 of 240 - 895 active elements (105 deactivated)
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 11:00:00 - step 237 of 240 - 891 active elements (109 deactivated)
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 11:15:00 - step 238 of 240 - 885 active elements (115 deactivated)
13:46:46 WARNING opendrift.models.basemodel: Missing variables: ['land_binary_mask']
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 11:30:00 - step 239 of 240 - 881 active elements (119 deactivated)
13:46:46 WARNING opendrift.models.basemodel: Missing variables: ['land_binary_mask']
13:46:46 INFO    opendrift.models.basemodel: 2015-11-18 11:45:00 - step 240 of 240 - 879 active elements (121 deactivated)
13:46:47 INFO    opendrift.models.basemodel: Removing 100 unseeded elements from history array

Print and plot results

print(o)
o.animation(fast=True)

Out:

===========================
--------------------
Reader performance:
--------------------
global_landmask
 0:00:00.4  total
 0:00:00.0  preparing
 0:00:00.3  reading
 0:00:00.0  masking
--------------------
/root/project/tests/test_data/16Nov2015_NorKyst_z_surface/norkyst800_subset_16Nov2015.nc
 0:00:03.5  total
 0:00:00.0  preparing
 0:00:00.4  reading
 0:00:00.1  interpolation
 0:00:00.0  interpolation_time
 0:00:03.0  rotating vectors
 0:00:00.0  masking
--------------------
Performance:
    9.4 total time
    3.5 configuration
    0.0 preparing main loop
      0.0 moving elements to ocean
      4.8 readers
        0.4 global_landmask
        0.5 postprocessing
    5.7 main loop
        3.6 /root/project/tests/test_data/16Nov2015_NorKyst_z_surface/norkyst800_subset_16Nov2015.nc
      0.1 updating elements
    0.0 cleaning up
--------------------
===========================
Model:  OceanDrift     (OpenDrift version 1.7.1)
        878 active Lagrangian3DArray particles  (122 deactivated, 100 scheduled)
-------------------
Environment variables:
  -----
  land_binary_mask
     1) global_landmask
  -----
  x_sea_water_velocity
  y_sea_water_velocity
     1) /root/project/tests/test_data/16Nov2015_NorKyst_z_surface/norkyst800_subset_16Nov2015.nc
  -----
Readers not added for the following variables:
  ocean_vertical_diffusivity
  sea_floor_depth_below_sea_level
  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
  surface_downward_x_stress
  surface_downward_y_stress
  turbulent_generic_length_scale
  turbulent_kinetic_energy
  upward_sea_water_velocity
  x_wind
  y_wind

Time:
        Start: 2015-11-16 00:00:00
        Present: 2015-11-18 12:00:00
        Calculation steps: 240 * 0:15:00 - total time: 2 days, 12:00:00
        Output steps: 61 * 1:00:00
-------------------
"Missing variables: ['land_binary_mask']", "Missing variables: ['land_binary_mask']", "Missing variables: ['land_binary_mask']", "Missing variables: ['land_binary_mask']", "Missing variables: ['land_binary_mask']", "Missing variables: ['land_binary_mask']", "Missing variables: ['land_binary_mask']"
===========================

13:46:47 WARNING opendrift.models.basemodel: Plotting fast. This will make your plots less accurate.
13:46:49 INFO    opendrift.models.basemodel: Saving animation to /root/project/docs/source/gallery/animations/example_grid_time_0.gif...
13:46:49 INFO    opendrift.models.basemodel: Making animated gif...
MovieWriter imagemagick unavailable; using Pillow instead.
../_images/example_grid_time_0.gif

Total running time of the script: ( 0 minutes 23.056 seconds)

Gallery generated by Sphinx-Gallery