Note
Go to the end to download the full example code
Drift at different depths
from datetime import datetime, timedelta
import numpy as np
from opendrift.models.oceandrift import OceanDrift
o = OceanDrift(loglevel=20) # Set loglevel to 0 for debug information
14:23:17 INFO opendrift.models.basemodel:529: OpenDriftSimulation initialised (version 1.10.7 / v1.10.6-73-gad7b6cf)
Using live data from Thredds
o.add_readers_from_list([
'https://thredds.met.no/thredds/dodsC/sea/norkyst800m/1h/aggregate_be'])
Seed 1000 elements at random depths
z = -np.random.rand(2000)*50
o.seed_elements(lon=4.8, lat=60.0, z=z, radius=0, number=2000,
time=datetime.utcnow())
print(o)
===========================
Model: OceanDrift (OpenDrift version 1.10.7)
0 active Lagrangian3DArray particles (0 deactivated, 2000 scheduled)
-------------------
Environment variables:
-----
Readers not added for the following variables:
land_binary_mask
ocean_mixed_layer_thickness
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_sea_water_velocity
x_wind
y_sea_water_velocity
y_wind
---
Lazy readers:
LazyReader: https://thredds.met.no/thredds/dodsC/sea/norkyst800m/1h/aggregate_be
===========================
Adding some diffusion
o.set_config('drift:horizontal_diffusivity', 10) # m2/s
Running model
o.run(duration=timedelta(hours=24), time_step=1800)
14:23:17 INFO opendrift.models.basemodel:2571: Fallback values will be used for the following variables which have no readers:
14:23:17 INFO opendrift.models.basemodel:2574: x_sea_water_velocity: 0.000000
14:23:17 INFO opendrift.models.basemodel:2574: y_sea_water_velocity: 0.000000
14:23:17 INFO opendrift.models.basemodel:2574: x_wind: 0.000000
14:23:17 INFO opendrift.models.basemodel:2574: y_wind: 0.000000
14:23:17 INFO opendrift.models.basemodel:2574: upward_sea_water_velocity: 0.000000
14:23:17 INFO opendrift.models.basemodel:2574: ocean_vertical_diffusivity: 0.000000
14:23:17 INFO opendrift.models.basemodel:2574: sea_surface_wave_significant_height: 0.000000
14:23:17 INFO opendrift.models.basemodel:2574: sea_surface_wave_stokes_drift_x_velocity: 0.000000
14:23:17 INFO opendrift.models.basemodel:2574: sea_surface_wave_stokes_drift_y_velocity: 0.000000
14:23:17 INFO opendrift.models.basemodel:2574: sea_surface_wave_period_at_variance_spectral_density_maximum: 0.000000
14:23:17 INFO opendrift.models.basemodel:2574: sea_surface_wave_mean_period_from_variance_spectral_density_second_frequency_moment: 0.000000
14:23:17 INFO opendrift.models.basemodel:2574: surface_downward_x_stress: 0.000000
14:23:17 INFO opendrift.models.basemodel:2574: surface_downward_y_stress: 0.000000
14:23:17 INFO opendrift.models.basemodel:2574: turbulent_kinetic_energy: 0.000000
14:23:17 INFO opendrift.models.basemodel:2574: turbulent_generic_length_scale: 0.000000
14:23:17 INFO opendrift.models.basemodel:2574: ocean_mixed_layer_thickness: 50.000000
14:23:17 INFO opendrift.models.basemodel:2574: sea_floor_depth_below_sea_level: 10000.000000
14:23:17 INFO opendrift.models.basemodel:2733: Adding a dynamical landmask with max. priority based on assumed maximum speed of 1 m/s. Adding a customised landmask may be faster...
14:23:22 INFO opendrift.models.basemodel:1681: Using existing reader for land_binary_mask
14:23:22 INFO opendrift.models.basemodel:1693: All points are in ocean
14:23:22 INFO opendrift.models.basemodel:2862: 2023-05-27 14:23:17.443614 - step 1 of 48 - 2000 active elements (0 deactivated)
14:23:23 INFO opendrift.readers.reader_netCDF_CF_generic:92: Opening dataset: https://thredds.met.no/thredds/dodsC/sea/norkyst800m/1h/aggregate_be
/opt/conda/envs/opendrift/lib/python3.11/site-packages/pyproj/crs/crs.py:1286: UserWarning: You will likely lose important projection information when converting to a PROJ string from another format. See: https://proj.org/faq.html#what-is-the-best-format-for-describing-coordinate-reference-systems
proj = self._crs.to_proj4(version=version)
14:23:26 INFO opendrift.models.basemodel:2862: 2023-05-27 14:53:17.443614 - step 2 of 48 - 2000 active elements (0 deactivated)
14:23:26 INFO opendrift.models.basemodel:2862: 2023-05-27 15:23:17.443614 - step 3 of 48 - 2000 active elements (0 deactivated)
14:23:27 INFO opendrift.models.basemodel:2862: 2023-05-27 15:53:17.443614 - step 4 of 48 - 2000 active elements (0 deactivated)
14:23:27 INFO opendrift.models.basemodel:2862: 2023-05-27 16:23:17.443614 - step 5 of 48 - 2000 active elements (0 deactivated)
14:23:28 INFO opendrift.models.basemodel:2862: 2023-05-27 16:53:17.443614 - step 6 of 48 - 2000 active elements (0 deactivated)
14:23:29 INFO opendrift.models.basemodel:2862: 2023-05-27 17:23:17.443614 - step 7 of 48 - 2000 active elements (0 deactivated)
14:23:30 INFO opendrift.models.basemodel:2862: 2023-05-27 17:53:17.443614 - step 8 of 48 - 2000 active elements (0 deactivated)
14:23:30 INFO opendrift.models.basemodel:2862: 2023-05-27 18:23:17.443614 - step 9 of 48 - 2000 active elements (0 deactivated)
14:23:31 INFO opendrift.models.basemodel:2862: 2023-05-27 18:53:17.443614 - step 10 of 48 - 2000 active elements (0 deactivated)
14:23:31 INFO opendrift.models.basemodel:2862: 2023-05-27 19:23:17.443614 - step 11 of 48 - 2000 active elements (0 deactivated)
14:23:32 INFO opendrift.models.basemodel:2862: 2023-05-27 19:53:17.443614 - step 12 of 48 - 2000 active elements (0 deactivated)
14:23:32 INFO opendrift.models.basemodel:2862: 2023-05-27 20:23:17.443614 - step 13 of 48 - 2000 active elements (0 deactivated)
14:23:33 INFO opendrift.models.basemodel:2862: 2023-05-27 20:53:17.443614 - step 14 of 48 - 2000 active elements (0 deactivated)
14:23:33 INFO opendrift.models.basemodel:2862: 2023-05-27 21:23:17.443614 - step 15 of 48 - 2000 active elements (0 deactivated)
14:23:34 INFO opendrift.models.basemodel:2862: 2023-05-27 21:53:17.443614 - step 16 of 48 - 2000 active elements (0 deactivated)
14:23:35 INFO opendrift.models.basemodel:2862: 2023-05-27 22:23:17.443614 - step 17 of 48 - 2000 active elements (0 deactivated)
14:23:36 INFO opendrift.models.basemodel:2862: 2023-05-27 22:53:17.443614 - step 18 of 48 - 2000 active elements (0 deactivated)
14:23:36 INFO opendrift.models.basemodel:2862: 2023-05-27 23:23:17.443614 - step 19 of 48 - 2000 active elements (0 deactivated)
14:23:37 INFO opendrift.models.basemodel:2862: 2023-05-27 23:53:17.443614 - step 20 of 48 - 2000 active elements (0 deactivated)
14:23:37 INFO opendrift.models.basemodel:2862: 2023-05-28 00:23:17.443614 - step 21 of 48 - 2000 active elements (0 deactivated)
14:23:38 INFO opendrift.models.basemodel:2862: 2023-05-28 00:53:17.443614 - step 22 of 48 - 2000 active elements (0 deactivated)
14:23:38 INFO opendrift.models.basemodel:2862: 2023-05-28 01:23:17.443614 - step 23 of 48 - 2000 active elements (0 deactivated)
14:23:39 INFO opendrift.models.basemodel:2862: 2023-05-28 01:53:17.443614 - step 24 of 48 - 2000 active elements (0 deactivated)
14:23:39 INFO opendrift.models.basemodel:2862: 2023-05-28 02:23:17.443614 - step 25 of 48 - 2000 active elements (0 deactivated)
14:23:40 INFO opendrift.models.basemodel:2862: 2023-05-28 02:53:17.443614 - step 26 of 48 - 2000 active elements (0 deactivated)
14:23:40 INFO opendrift.models.basemodel:2862: 2023-05-28 03:23:17.443614 - step 27 of 48 - 2000 active elements (0 deactivated)
14:23:41 INFO opendrift.models.basemodel:2862: 2023-05-28 03:53:17.443614 - step 28 of 48 - 2000 active elements (0 deactivated)
14:23:42 INFO opendrift.models.basemodel:2862: 2023-05-28 04:23:17.443614 - step 29 of 48 - 2000 active elements (0 deactivated)
14:23:43 INFO opendrift.models.basemodel:2862: 2023-05-28 04:53:17.443614 - step 30 of 48 - 2000 active elements (0 deactivated)
14:23:43 INFO opendrift.models.basemodel:2862: 2023-05-28 05:23:17.443614 - step 31 of 48 - 2000 active elements (0 deactivated)
14:23:44 INFO opendrift.models.basemodel:2862: 2023-05-28 05:53:17.443614 - step 32 of 48 - 2000 active elements (0 deactivated)
14:23:44 INFO opendrift.models.basemodel:2862: 2023-05-28 06:23:17.443614 - step 33 of 48 - 2000 active elements (0 deactivated)
14:23:45 INFO opendrift.models.basemodel:2862: 2023-05-28 06:53:17.443614 - step 34 of 48 - 2000 active elements (0 deactivated)
14:23:45 INFO opendrift.models.basemodel:2862: 2023-05-28 07:23:17.443614 - step 35 of 48 - 2000 active elements (0 deactivated)
14:23:46 INFO opendrift.models.basemodel:2862: 2023-05-28 07:53:17.443614 - step 36 of 48 - 2000 active elements (0 deactivated)
14:23:47 INFO opendrift.models.basemodel:2862: 2023-05-28 08:23:17.443614 - step 37 of 48 - 2000 active elements (0 deactivated)
14:23:48 INFO opendrift.models.basemodel:2862: 2023-05-28 08:53:17.443614 - step 38 of 48 - 2000 active elements (0 deactivated)
14:23:48 INFO opendrift.models.basemodel:2862: 2023-05-28 09:23:17.443614 - step 39 of 48 - 2000 active elements (0 deactivated)
14:23:49 INFO opendrift.models.basemodel:2862: 2023-05-28 09:53:17.443614 - step 40 of 48 - 2000 active elements (0 deactivated)
14:23:49 INFO opendrift.models.basemodel:2862: 2023-05-28 10:23:17.443614 - step 41 of 48 - 2000 active elements (0 deactivated)
14:23:50 INFO opendrift.models.basemodel:2862: 2023-05-28 10:53:17.443614 - step 42 of 48 - 2000 active elements (0 deactivated)
14:23:50 INFO opendrift.models.basemodel:2862: 2023-05-28 11:23:17.443614 - step 43 of 48 - 2000 active elements (0 deactivated)
14:23:51 INFO opendrift.models.basemodel:2862: 2023-05-28 11:53:17.443614 - step 44 of 48 - 2000 active elements (0 deactivated)
14:23:51 INFO opendrift.models.basemodel:2862: 2023-05-28 12:23:17.443614 - step 45 of 48 - 1999 active elements (1 deactivated)
14:23:53 INFO opendrift.models.basemodel:2862: 2023-05-28 12:53:17.443614 - step 46 of 48 - 1999 active elements (1 deactivated)
14:23:53 INFO opendrift.models.basemodel:2862: 2023-05-28 13:23:17.443614 - step 47 of 48 - 1999 active elements (1 deactivated)
14:23:54 INFO opendrift.models.basemodel:2862: 2023-05-28 13:53:17.443614 - step 48 of 48 - 1999 active elements (1 deactivated)
Plot results with lines and particles colored by depth
print(o)
o.plot(linecolor='z', buffer=.1, show_elements=False, fast=False)
o.animation(color='z', buffer=.1, fast=True)
===========================
--------------------
Reader performance:
--------------------
global_landmask
0:00:00.0 total
0:00:00.0 preparing
0:00:00.0 reading
0:00:00.0 masking
--------------------
https://thredds.met.no/thredds/dodsC/sea/norkyst800m/1h/aggregate_be
0:00:28.4 total
0:00:00.0 preparing
0:00:27.5 reading
0:00:00.5 interpolation
0:00:00.0 interpolation_time
0:00:00.9 rotating vectors
0:00:00.0 masking
--------------------
Performance:
37.1 total time
0.0 configuration
5.5 preparing main loop
5.4 making dynamical landmask
0.0 moving elements to ocean
30.7 readers
0.0 global_landmask
0.2 postprocessing
31.5 main loop
28.6 https://thredds.met.no/thredds/dodsC/sea/norkyst800m/1h/aggregate_be
0.1 updating elements
0.0 cleaning up
--------------------
===========================
Model: OceanDrift (OpenDrift version 1.10.7)
1999 active Lagrangian3DArray particles (1 deactivated, 0 scheduled)
-------------------
Environment variables:
-----
land_binary_mask
1) global_landmask
-----
sea_floor_depth_below_sea_level
upward_sea_water_velocity
x_sea_water_velocity
x_wind
y_sea_water_velocity
y_wind
1) https://thredds.met.no/thredds/dodsC/sea/norkyst800m/1h/aggregate_be
-----
Readers not added for the following variables:
ocean_mixed_layer_thickness
ocean_vertical_diffusivity
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
Time:
Start: 2023-05-27 14:23:17.443614 UTC
Present: 2023-05-28 14:23:17.443614 UTC
Calculation steps: 48 * 0:30:00 - total time: 1 day, 0:00:00
Output steps: 49 * 0:30:00
===========================
0.158576945415655 ALPHA
14:25:18 WARNING opendrift.models.basemodel:3206: Plotting fast. This will make your plots less accurate.
14:25:19 INFO opendrift.models.basemodel:5330: Saving animation to /root/project/docs/source/gallery/animations/example_depth_0.gif...
14:25:29 INFO opendrift.models.basemodel:3828: Time to make animation: 0:00:10.907248
Total running time of the script: ( 2 minutes 17.429 seconds)