Note
Click here to download the full example code
Back and forth
import os
import opendrift
from opendrift.readers import reader_netCDF_CF_generic
from opendrift.models.oceandrift import OceanDrift
ncfile = 'backandforth.nc'
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')
#reader_norkyst = reader_netCDF_CF_generic.Reader('https://thredds.met.no/thredds/dodsC/sea/norkyst800m/1h/aggregate_be')
o.add_reader(reader_norkyst)
o.set_config('environment:fallback:land_binary_mask', 0)
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
Forward run Seeding some particles
lon = 4.2; lat = 60.1;
time = reader_norkyst.start_time
o.seed_elements(lon, lat, radius=1000, number=100, time=time)
o.disable_vertical_motion()
o.run(steps=50*4, time_step=900, time_step_output=3600, outfile=ncfile)
Out:
13:46:37 INFO opendrift.models.oceandrift: Setting config: drift:vertical_advection -> False
13:46:37 INFO opendrift.models.oceandrift: Setting config: drift:vertical_mixing -> False
13:46:37 INFO opendrift.models.basemodel: Fallback values will be used for the following variables which have no readers:
13:46:37 INFO opendrift.models.basemodel: x_wind: 0.000000
13:46:37 INFO opendrift.models.basemodel: y_wind: 0.000000
13:46:37 INFO opendrift.models.basemodel: upward_sea_water_velocity: 0.000000
13:46:37 INFO opendrift.models.basemodel: ocean_vertical_diffusivity: 0.000000
13:46:37 INFO opendrift.models.basemodel: sea_surface_wave_significant_height: 0.000000
13:46:37 INFO opendrift.models.basemodel: sea_surface_wave_stokes_drift_x_velocity: 0.000000
13:46:37 INFO opendrift.models.basemodel: sea_surface_wave_stokes_drift_y_velocity: 0.000000
13:46:37 INFO opendrift.models.basemodel: sea_surface_wave_period_at_variance_spectral_density_maximum: 0.000000
13:46:37 INFO opendrift.models.basemodel: sea_surface_wave_mean_period_from_variance_spectral_density_second_frequency_moment: 0.000000
13:46:37 INFO opendrift.models.basemodel: surface_downward_x_stress: 0.000000
13:46:37 INFO opendrift.models.basemodel: surface_downward_y_stress: 0.000000
13:46:37 INFO opendrift.models.basemodel: turbulent_kinetic_energy: 0.000000
13:46:37 INFO opendrift.models.basemodel: turbulent_generic_length_scale: 0.000000
13:46:37 INFO opendrift.models.basemodel: sea_floor_depth_below_sea_level: 10000.000000
13:46:37 INFO opendrift.models.basemodel: No land reader added, making a temporary landmask reader
13:46:41 INFO opendrift.models.basemodel: OpenDriftSimulation initialised (version 1.7.1 / v1.7.1-87-g074c1d2)
13:46:41 INFO opendrift.models.basemodel: All points are in ocean
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13:46:45 INFO opendrift.models.basemodel: 2015-11-17 18:00:00 - step 169 of 200 - 100 active elements (0 deactivated)
13:46:45 INFO opendrift.models.basemodel: 2015-11-17 18:15:00 - step 170 of 200 - 100 active elements (0 deactivated)
13:46:45 INFO opendrift.models.basemodel: 2015-11-17 18:30:00 - step 171 of 200 - 100 active elements (0 deactivated)
13:46:45 INFO opendrift.models.basemodel: 2015-11-17 18:45:00 - step 172 of 200 - 100 active elements (0 deactivated)
13:46:45 INFO opendrift.models.basemodel: 2015-11-17 19:00:00 - step 173 of 200 - 100 active elements (0 deactivated)
13:46:45 INFO opendrift.models.basemodel: 2015-11-17 19:15:00 - step 174 of 200 - 100 active elements (0 deactivated)
13:46:45 INFO opendrift.models.basemodel: 2015-11-17 19:30:00 - step 175 of 200 - 100 active elements (0 deactivated)
13:46:45 INFO opendrift.models.basemodel: 2015-11-17 19:45:00 - step 176 of 200 - 100 active elements (0 deactivated)
13:46:45 INFO opendrift.models.basemodel: 2015-11-17 20:00:00 - step 177 of 200 - 100 active elements (0 deactivated)
13:46:45 INFO opendrift.models.basemodel: 2015-11-17 20:15:00 - step 178 of 200 - 100 active elements (0 deactivated)
13:46:45 INFO opendrift.models.basemodel: 2015-11-17 20:30:00 - step 179 of 200 - 100 active elements (0 deactivated)
13:46:45 INFO opendrift.models.basemodel: 2015-11-17 20:45:00 - step 180 of 200 - 100 active elements (0 deactivated)
13:46:45 INFO opendrift.models.basemodel: 2015-11-17 21:00:00 - step 181 of 200 - 100 active elements (0 deactivated)
13:46:45 INFO opendrift.models.basemodel: 2015-11-17 21:15:00 - step 182 of 200 - 100 active elements (0 deactivated)
13:46:45 INFO opendrift.models.basemodel: 2015-11-17 21:30:00 - step 183 of 200 - 100 active elements (0 deactivated)
13:46:45 INFO opendrift.models.basemodel: 2015-11-17 21:45:00 - step 184 of 200 - 100 active elements (0 deactivated)
13:46:45 INFO opendrift.models.basemodel: 2015-11-17 22:00:00 - step 185 of 200 - 100 active elements (0 deactivated)
13:46:45 INFO opendrift.models.basemodel: 2015-11-17 22:15:00 - step 186 of 200 - 100 active elements (0 deactivated)
13:46:45 INFO opendrift.models.basemodel: 2015-11-17 22:30:00 - step 187 of 200 - 100 active elements (0 deactivated)
13:46:45 INFO opendrift.models.basemodel: 2015-11-17 22:45:00 - step 188 of 200 - 100 active elements (0 deactivated)
13:46:45 INFO opendrift.models.basemodel: 2015-11-17 23:00:00 - step 189 of 200 - 100 active elements (0 deactivated)
13:46:45 INFO opendrift.models.basemodel: 2015-11-17 23:15:00 - step 190 of 200 - 100 active elements (0 deactivated)
13:46:45 INFO opendrift.models.basemodel: 2015-11-17 23:30:00 - step 191 of 200 - 100 active elements (0 deactivated)
13:46:45 INFO opendrift.models.basemodel: 2015-11-17 23:45:00 - step 192 of 200 - 100 active elements (0 deactivated)
13:46:45 INFO opendrift.models.basemodel: 2015-11-18 00:00:00 - step 193 of 200 - 100 active elements (0 deactivated)
13:46:45 INFO opendrift.models.basemodel: 2015-11-18 00:15:00 - step 194 of 200 - 100 active elements (0 deactivated)
13:46:45 INFO opendrift.models.basemodel: 2015-11-18 00:30:00 - step 195 of 200 - 100 active elements (0 deactivated)
13:46:45 INFO opendrift.models.basemodel: 2015-11-18 00:45:00 - step 196 of 200 - 100 active elements (0 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 01:00:00 - step 197 of 200 - 100 active elements (0 deactivated)
13:46:45 INFO opendrift.models.basemodel: 2015-11-18 01:15:00 - step 198 of 200 - 100 active elements (0 deactivated)
13:46:45 INFO opendrift.models.basemodel: 2015-11-18 01:30:00 - step 199 of 200 - 100 active elements (0 deactivated)
13:46:45 INFO opendrift.models.basemodel: 2015-11-18 01:45:00 - step 200 of 200 - 100 active elements (0 deactivated)
13:46:45 INFO opendrift.export.io_netcdf: Wrote 51 steps to file backandforth.nc
Print and plot results
print(o)
o.plot(buffer=.2, fast=True)
##%%
# Backward run:
# Import forward run, and seed elements at final positions and time
o = opendrift.open(ncfile)
elements_final = o.elements
time_final = o.time
del o
o = OceanDrift(loglevel=20) # Set loglevel to 0 for debug information
o.set_config('environment:fallback:land_binary_mask', 0)
o.add_reader(reader_norkyst)
o.schedule_elements(elements_final, time_final)
o.disable_vertical_motion()
Out:
===========================
--------------------
Reader performance:
--------------------
/root/project/tests/test_data/16Nov2015_NorKyst_z_surface/norkyst800_subset_16Nov2015.nc
0:00:03.1 total
0:00:00.0 preparing
0:00:00.3 reading
0:00:00.0 interpolation
0:00:00.0 interpolation_time
0:00:02.8 rotating vectors
0:00:00.0 masking
--------------------
Performance:
8.4 total time
0.4 configuration
3.3 preparing main loop
3.3 moving elements to ocean
4.5 main loop
4.0 readers
3.2 /root/project/tests/test_data/16Nov2015_NorKyst_z_surface/norkyst800_subset_16Nov2015.nc
0.5 postprocessing
0.0 updating elements
0.1 cleaning up
--------------------
===========================
Model: OceanDrift (OpenDrift version 1.7.1)
100 active Lagrangian3DArray particles (0 deactivated, 0 scheduled)
-------------------
Environment variables:
-----
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:
land_binary_mask
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 02:00:00
Calculation steps: 200 * 0:15:00 - total time: 2 days, 2:00:00
Output steps: 51 * 1:00:00
===========================
13:46:45 WARNING opendrift.models.basemodel: Plotting fast. This will make your plots less accurate.
13:46:47 DEBUG opendrift.models.basemodel: Adding 17 config items from basemodel
13:46:47 DEBUG opendrift.models.basemodel: Adding 4 config items from basemodel
13:46:47 DEBUG opendrift.models.basemodel: Adding 34 config items from basemodel
13:46:48 INFO opendrift.models.basemodel: OpenDriftSimulation initialised (version 1.7.1 / v1.7.1-87-g074c1d2)
13:46:48 DEBUG opendrift.models.basemodel: Adding 14 config items from oceandrift
13:46:48 DEBUG opendrift.models.basemodel: Overwriting config item seed:z
13:46:48 DEBUG opendrift.export.io_netcdf: Importing from backandforth.nc
13:46:48 DEBUG opendrift.models.basemodel: No elements to deactivate
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: general:use_auto_landmask -> True
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: general:coastline_action -> stranding
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: general:time_step_minutes -> 60
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: general:time_step_output_minutes -> None
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: seed:ocean_only -> True
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: seed:number -> 1
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: drift:max_age_seconds -> None
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: drift:advection_scheme -> euler
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: drift:current_uncertainty -> 0
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: drift:current_uncertainty_uniform -> 0
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: drift:horizontal_diffusivity -> 0
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: drift:wind_uncertainty -> 0
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: drift:relative_wind -> False
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: drift:deactivate_north_of -> None
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: drift:deactivate_south_of -> None
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: drift:deactivate_east_of -> None
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: drift:deactivate_west_of -> None
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: seed:origin_marker -> 0
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: seed:z -> 0
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: seed:wind_drift_factor -> 0.02
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: seed:terminal_velocity -> 0.0
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:constant:x_sea_water_velocity -> None
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:fallback:x_sea_water_velocity -> 0
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:constant:y_sea_water_velocity -> None
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:fallback:y_sea_water_velocity -> 0
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:constant:x_wind -> None
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:fallback:x_wind -> 0
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:constant:y_wind -> None
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:fallback:y_wind -> 0
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:constant:upward_sea_water_velocity -> None
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:fallback:upward_sea_water_velocity -> 0
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:constant:ocean_vertical_diffusivity -> None
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:fallback:ocean_vertical_diffusivity -> 0
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:constant:sea_surface_wave_significant_height -> None
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:fallback:sea_surface_wave_significant_height -> 0
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:constant:sea_surface_wave_stokes_drift_x_velocity -> None
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:fallback:sea_surface_wave_stokes_drift_x_velocity -> 0
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:constant:sea_surface_wave_stokes_drift_y_velocity -> None
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:fallback:sea_surface_wave_stokes_drift_y_velocity -> 0
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:constant:sea_surface_wave_period_at_variance_spectral_density_maximum -> None
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:fallback:sea_surface_wave_period_at_variance_spectral_density_maximum -> 0
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:constant:sea_surface_wave_mean_period_from_variance_spectral_density_second_frequency_moment -> None
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:fallback:sea_surface_wave_mean_period_from_variance_spectral_density_second_frequency_moment -> 0
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:constant:surface_downward_x_stress -> None
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:fallback:surface_downward_x_stress -> 0
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:constant:surface_downward_y_stress -> None
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:fallback:surface_downward_y_stress -> 0
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:constant:turbulent_kinetic_energy -> None
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:fallback:turbulent_kinetic_energy -> 0
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:constant:turbulent_generic_length_scale -> None
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:fallback:turbulent_generic_length_scale -> 0
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:constant:sea_floor_depth_below_sea_level -> None
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:fallback:sea_floor_depth_below_sea_level -> 10000
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:constant:land_binary_mask -> None
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: environment:fallback:land_binary_mask -> 0.0
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: drift:vertical_advection -> False
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: drift:vertical_mixing -> False
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: vertical_mixing:timestep -> 60
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: vertical_mixing:diffusivitymodel -> environment
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: vertical_mixing:background_diffusivity -> 0.001
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: vertical_mixing:TSprofiles -> False
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: drift:wind_drift_depth -> 0.1
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: drift:stokes_drift -> True
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: drift:use_tabularised_stokes_drift -> False
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: drift:tabularised_stokes_drift_fetch -> 25000
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: general:seafloor_action -> lift_to_seafloor
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: drift:truncate_ocean_model_below_m -> None
13:46:48 DEBUG opendrift.export.io_netcdf: Setting imported config: seed:seafloor -> False
13:46:48 INFO opendrift: Returning <class 'opendrift.models.oceandrift.OceanDrift'> object
13:46:48 INFO opendrift.models.basemodel: OpenDriftSimulation initialised (version 1.7.1 / v1.7.1-87-g074c1d2)
13:46:48 INFO opendrift.models.oceandrift: Setting config: drift:vertical_advection -> False
13:46:48 INFO opendrift.models.oceandrift: Setting config: drift:vertical_mixing -> False
Running model backwards from end of forward simulation
o.run(steps=50*4, time_step=-900, time_step_output=3600)
Out:
13:46:48 INFO opendrift.models.basemodel: Fallback values will be used for the following variables which have no readers:
13:46:48 INFO opendrift.models.basemodel: x_wind: 0.000000
13:46:48 INFO opendrift.models.basemodel: y_wind: 0.000000
13:46:48 INFO opendrift.models.basemodel: upward_sea_water_velocity: 0.000000
13:46:48 INFO opendrift.models.basemodel: ocean_vertical_diffusivity: 0.000000
13:46:48 INFO opendrift.models.basemodel: sea_surface_wave_significant_height: 0.000000
13:46:48 INFO opendrift.models.basemodel: sea_surface_wave_stokes_drift_x_velocity: 0.000000
13:46:48 INFO opendrift.models.basemodel: sea_surface_wave_stokes_drift_y_velocity: 0.000000
13:46:48 INFO opendrift.models.basemodel: sea_surface_wave_period_at_variance_spectral_density_maximum: 0.000000
13:46:48 INFO opendrift.models.basemodel: sea_surface_wave_mean_period_from_variance_spectral_density_second_frequency_moment: 0.000000
13:46:48 INFO opendrift.models.basemodel: surface_downward_x_stress: 0.000000
13:46:48 INFO opendrift.models.basemodel: surface_downward_y_stress: 0.000000
13:46:48 INFO opendrift.models.basemodel: turbulent_kinetic_energy: 0.000000
13:46:48 INFO opendrift.models.basemodel: turbulent_generic_length_scale: 0.000000
13:46:48 INFO opendrift.models.basemodel: sea_floor_depth_below_sea_level: 10000.000000
13:46:48 INFO opendrift.models.basemodel: Backwards simulation, starting from last seeded element
13:46:48 INFO opendrift.models.basemodel: No land reader added, making a temporary landmask reader
13:46:52 INFO opendrift.models.basemodel: OpenDriftSimulation initialised (version 1.7.1 / v1.7.1-87-g074c1d2)
13:46:52 INFO opendrift.models.basemodel: All points are in ocean
13:46:52 INFO opendrift.models.basemodel: Backwards simulation, starting at time of last seeded element
13:46:52 INFO opendrift.models.basemodel: 2015-11-18 02:00:00 - step 1 of 200 - 100 active elements (0 deactivated)
13:46:52 INFO opendrift.models.basemodel: 2015-11-18 01:45:00 - step 2 of 200 - 100 active elements (0 deactivated)
13:46:52 INFO opendrift.models.basemodel: 2015-11-18 01:30:00 - step 3 of 200 - 100 active elements (0 deactivated)
13:46:52 INFO opendrift.models.basemodel: 2015-11-18 01:15:00 - step 4 of 200 - 100 active elements (0 deactivated)
13:46:52 INFO opendrift.models.basemodel: 2015-11-18 01:00:00 - step 5 of 200 - 100 active elements (0 deactivated)
13:46:52 INFO opendrift.models.basemodel: 2015-11-18 00:45:00 - step 6 of 200 - 100 active elements (0 deactivated)
13:46:52 INFO opendrift.models.basemodel: 2015-11-18 00:30:00 - step 7 of 200 - 100 active elements (0 deactivated)
13:46:52 INFO opendrift.models.basemodel: 2015-11-18 00:15:00 - step 8 of 200 - 100 active elements (0 deactivated)
13:46:52 INFO opendrift.models.basemodel: 2015-11-18 00:00:00 - step 9 of 200 - 100 active elements (0 deactivated)
13:46:52 INFO opendrift.models.basemodel: 2015-11-17 23:45:00 - step 10 of 200 - 100 active elements (0 deactivated)
13:46:52 INFO opendrift.models.basemodel: 2015-11-17 23:30:00 - step 11 of 200 - 100 active elements (0 deactivated)
13:46:52 INFO opendrift.models.basemodel: 2015-11-17 23:15:00 - step 12 of 200 - 100 active elements (0 deactivated)
13:46:52 INFO opendrift.models.basemodel: 2015-11-17 23:00:00 - step 13 of 200 - 100 active elements (0 deactivated)
13:46:52 INFO opendrift.models.basemodel: 2015-11-17 22:45:00 - step 14 of 200 - 100 active elements (0 deactivated)
13:46:52 INFO opendrift.models.basemodel: 2015-11-17 22:30:00 - step 15 of 200 - 100 active elements (0 deactivated)
13:46:52 INFO opendrift.models.basemodel: 2015-11-17 22:15:00 - step 16 of 200 - 100 active elements (0 deactivated)
13:46:52 INFO opendrift.models.basemodel: 2015-11-17 22:00:00 - step 17 of 200 - 100 active elements (0 deactivated)
13:46:52 INFO opendrift.models.basemodel: 2015-11-17 21:45:00 - step 18 of 200 - 100 active elements (0 deactivated)
13:46:52 INFO opendrift.models.basemodel: 2015-11-17 21:30:00 - step 19 of 200 - 100 active elements (0 deactivated)
13:46:52 INFO opendrift.models.basemodel: 2015-11-17 21:15:00 - step 20 of 200 - 100 active elements (0 deactivated)
13:46:52 INFO opendrift.models.basemodel: 2015-11-17 21:00:00 - step 21 of 200 - 100 active elements (0 deactivated)
13:46:52 INFO opendrift.models.basemodel: 2015-11-17 20:45:00 - step 22 of 200 - 100 active elements (0 deactivated)
13:46:52 INFO opendrift.models.basemodel: 2015-11-17 20:30:00 - step 23 of 200 - 100 active elements (0 deactivated)
13:46:52 INFO opendrift.models.basemodel: 2015-11-17 20:15:00 - step 24 of 200 - 100 active elements (0 deactivated)
13:46:52 INFO opendrift.models.basemodel: 2015-11-17 20:00:00 - step 25 of 200 - 100 active elements (0 deactivated)
13:46:52 INFO opendrift.models.basemodel: 2015-11-17 19:45:00 - step 26 of 200 - 100 active elements (0 deactivated)
13:46:52 INFO opendrift.models.basemodel: 2015-11-17 19:30:00 - step 27 of 200 - 100 active elements (0 deactivated)
13:46:52 INFO opendrift.models.basemodel: 2015-11-17 19:15:00 - step 28 of 200 - 100 active elements (0 deactivated)
13:46:52 INFO opendrift.models.basemodel: 2015-11-17 19:00:00 - step 29 of 200 - 100 active elements (0 deactivated)
13:46:52 INFO opendrift.models.basemodel: 2015-11-17 18:45:00 - step 30 of 200 - 100 active elements (0 deactivated)
13:46:52 INFO opendrift.models.basemodel: 2015-11-17 18:30:00 - step 31 of 200 - 100 active elements (0 deactivated)
13:46:53 INFO opendrift.models.basemodel: 2015-11-17 18:15:00 - step 32 of 200 - 100 active elements (0 deactivated)
13:46:53 INFO opendrift.models.basemodel: 2015-11-17 18:00:00 - step 33 of 200 - 100 active elements (0 deactivated)
13:46:53 INFO opendrift.models.basemodel: 2015-11-17 17:45:00 - step 34 of 200 - 100 active elements (0 deactivated)
13:46:53 INFO opendrift.models.basemodel: 2015-11-17 17:30:00 - step 35 of 200 - 100 active elements (0 deactivated)
13:46:53 INFO opendrift.models.basemodel: 2015-11-17 17:15:00 - step 36 of 200 - 100 active elements (0 deactivated)
13:46:53 INFO opendrift.models.basemodel: 2015-11-17 17:00:00 - step 37 of 200 - 100 active elements (0 deactivated)
13:46:53 INFO opendrift.models.basemodel: 2015-11-17 16:45:00 - step 38 of 200 - 100 active elements (0 deactivated)
13:46:53 INFO opendrift.models.basemodel: 2015-11-17 16:30:00 - step 39 of 200 - 100 active elements (0 deactivated)
13:46:53 INFO opendrift.models.basemodel: 2015-11-17 16:15:00 - step 40 of 200 - 100 active elements (0 deactivated)
13:46:53 INFO opendrift.models.basemodel: 2015-11-17 16:00:00 - step 41 of 200 - 100 active elements (0 deactivated)
13:46:53 INFO opendrift.models.basemodel: 2015-11-17 15:45:00 - step 42 of 200 - 100 active elements (0 deactivated)
13:46:53 INFO opendrift.models.basemodel: 2015-11-17 15:30:00 - step 43 of 200 - 100 active elements (0 deactivated)
13:46:53 INFO opendrift.models.basemodel: 2015-11-17 15:15:00 - step 44 of 200 - 100 active elements (0 deactivated)
13:46:53 INFO opendrift.models.basemodel: 2015-11-17 15:00:00 - step 45 of 200 - 100 active elements (0 deactivated)
13:46:53 INFO opendrift.models.basemodel: 2015-11-17 14:45:00 - step 46 of 200 - 100 active elements (0 deactivated)
13:46:53 INFO opendrift.models.basemodel: 2015-11-17 14:30:00 - step 47 of 200 - 100 active elements (0 deactivated)
13:46:53 INFO opendrift.models.basemodel: 2015-11-17 14:15:00 - step 48 of 200 - 100 active elements (0 deactivated)
13:46:53 INFO opendrift.models.basemodel: 2015-11-17 14:00:00 - step 49 of 200 - 100 active elements (0 deactivated)
13:46:53 INFO opendrift.models.basemodel: 2015-11-17 13:45:00 - step 50 of 200 - 100 active elements (0 deactivated)
13:46:53 INFO opendrift.models.basemodel: 2015-11-17 13:30:00 - step 51 of 200 - 100 active elements (0 deactivated)
13:46:53 INFO opendrift.models.basemodel: 2015-11-17 13:15:00 - step 52 of 200 - 100 active elements (0 deactivated)
13:46:53 INFO opendrift.models.basemodel: 2015-11-17 13:00:00 - step 53 of 200 - 100 active elements (0 deactivated)
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Check if backwards simulation brings elements back to their starting position. Some numerical error is expected.
print(o)
o.plot(buffer=.2, fast=True)
os.remove(ncfile)
##%%
# Compare plots forward and backward
Out:
===========================
--------------------
Reader performance:
--------------------
/root/project/tests/test_data/16Nov2015_NorKyst_z_surface/norkyst800_subset_16Nov2015.nc
0:00:06.7 total
0:00:00.0 preparing
0:00:00.5 reading
0:00:00.1 interpolation
0:00:00.0 interpolation_time
0:00:06.0 rotating vectors
0:00:00.0 masking
--------------------
Performance:
9.8 total time
0.5 configuration
3.3 preparing main loop
3.3 moving elements to ocean
5.9 main loop
4.5 readers
3.6 /root/project/tests/test_data/16Nov2015_NorKyst_z_surface/norkyst800_subset_16Nov2015.nc
0.6 postprocessing
0.2 updating elements
0.0 cleaning up
--------------------
===========================
Model: OceanDrift (OpenDrift version 1.7.1)
100 active Lagrangian3DArray particles (0 deactivated, 0 scheduled)
-------------------
Environment variables:
-----
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:
land_binary_mask
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: 2015-11-18 02:00:00
Present: 2015-11-16 00:00:00
Calculation steps: 200 * -1 day, 23:45:00 - total time: -3 days, 22:00:00
Output steps: 51 * -1 day, 23:00:00
===========================
13:46:58 WARNING opendrift.models.basemodel: Plotting fast. This will make your plots less accurate.
Total running time of the script: ( 0 minutes 23.544 seconds)