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
20:14:37 INFO    opendrift.models.basemodel:515: OpenDriftSimulation initialised (version 1.12.0 / v1.12.0-26-g390e945)

Using live data from Thredds

o.add_readers_from_list([
    'https://thredds.met.no/thredds/dodsC/sea/norkyst800m/1h/aggregate_be'])

Adding some diffusion

o.set_config('drift:horizontal_diffusivity', 10)  # m2/s

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)
20:14:37 INFO    opendrift.models.basemodel.environment:218: Adding a dynamical landmask with max. priority based on assumed maximum speed of 2.0 m/s. Adding a customised landmask may be faster...
20:14:41 INFO    opendrift.models.basemodel.environment:245: Fallback values will be used for the following variables which have no readers:
20:14:41 INFO    opendrift.models.basemodel.environment:248:    x_sea_water_velocity: 0.000000
20:14:41 INFO    opendrift.models.basemodel.environment:248:    y_sea_water_velocity: 0.000000
20:14:41 INFO    opendrift.models.basemodel.environment:248:    sea_surface_height: 0.000000
20:14:41 INFO    opendrift.models.basemodel.environment:248:    x_wind: 0.000000
20:14:41 INFO    opendrift.models.basemodel.environment:248:    y_wind: 0.000000
20:14:41 INFO    opendrift.models.basemodel.environment:248:    upward_sea_water_velocity: 0.000000
20:14:41 INFO    opendrift.models.basemodel.environment:248:    ocean_vertical_diffusivity: 0.000000
20:14:41 INFO    opendrift.models.basemodel.environment:248:    sea_surface_wave_significant_height: 0.000000
20:14:41 INFO    opendrift.models.basemodel.environment:248:    sea_surface_wave_stokes_drift_x_velocity: 0.000000
20:14:41 INFO    opendrift.models.basemodel.environment:248:    sea_surface_wave_stokes_drift_y_velocity: 0.000000
20:14:41 INFO    opendrift.models.basemodel.environment:248:    sea_surface_wave_period_at_variance_spectral_density_maximum: 0.000000
20:14:41 INFO    opendrift.models.basemodel.environment:248:    sea_surface_wave_mean_period_from_variance_spectral_density_second_frequency_moment: 0.000000
20:14:41 INFO    opendrift.models.basemodel.environment:248:    sea_surface_swell_wave_to_direction: 0.000000
20:14:41 INFO    opendrift.models.basemodel.environment:248:    sea_surface_swell_wave_peak_period_from_variance_spectral_density: 0.000000
20:14:41 INFO    opendrift.models.basemodel.environment:248:    sea_surface_swell_wave_significant_height: 0.000000
20:14:41 INFO    opendrift.models.basemodel.environment:248:    sea_surface_wind_wave_to_direction: 0.000000
20:14:41 INFO    opendrift.models.basemodel.environment:248:    sea_surface_wind_wave_mean_period: 0.000000
20:14:41 INFO    opendrift.models.basemodel.environment:248:    sea_surface_wind_wave_significant_height: 0.000000
20:14:41 INFO    opendrift.models.basemodel.environment:248:    surface_downward_x_stress: 0.000000
20:14:41 INFO    opendrift.models.basemodel.environment:248:    surface_downward_y_stress: 0.000000
20:14:41 INFO    opendrift.models.basemodel.environment:248:    turbulent_kinetic_energy: 0.000000
20:14:41 INFO    opendrift.models.basemodel.environment:248:    turbulent_generic_length_scale: 0.000000
20:14:41 INFO    opendrift.models.basemodel.environment:248:    ocean_mixed_layer_thickness: 50.000000
20:14:41 INFO    opendrift.models.basemodel.environment:248:    sea_floor_depth_below_sea_level: 10000.000000
===========================
Model:  OceanDrift     (OpenDrift version 1.12.0)
        0 active Lagrangian3DArray particles  (0 deactivated, 2000 scheduled)
-------------------
Environment variables:
  -----
  land_binary_mask
     1) global_landmask
  -----
Readers not added for the following variables:
  ocean_mixed_layer_thickness
  ocean_vertical_diffusivity
  sea_floor_depth_below_sea_level
  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_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

Discarded readers:
===========================

Running model

o.run(duration=timedelta(hours=24), time_step=1800)
20:14:41 INFO    opendrift.models.basemodel:935: Using existing reader for land_binary_mask
20:14:41 INFO    opendrift.models.basemodel:946: All points are in ocean
20:14:41 INFO    opendrift.models.basemodel:2035: 2024-12-12 20:14:37.730139 - step 1 of 48 - 2000 active elements (0 deactivated)
20:14:41 INFO    opendrift.readers:58: Opening file with xr.open_dataset
20:14:48 INFO    opendrift.readers.reader_netCDF_CF_generic:337: Detected dimensions: {'x': 'X', 'y': 'Y', 'z': 'depth', 'time': 'time'}
20:14:51 INFO    opendrift.models.basemodel:2035: 2024-12-12 20:44:37.730139 - step 2 of 48 - 2000 active elements (0 deactivated)
20:14:51 INFO    opendrift.models.basemodel:2035: 2024-12-12 21:14:37.730139 - step 3 of 48 - 2000 active elements (0 deactivated)
20:14:52 INFO    opendrift.models.basemodel:2035: 2024-12-12 21:44:37.730139 - step 4 of 48 - 2000 active elements (0 deactivated)
20:14:52 INFO    opendrift.models.basemodel:2035: 2024-12-12 22:14:37.730139 - step 5 of 48 - 2000 active elements (0 deactivated)
20:14:53 INFO    opendrift.models.basemodel:2035: 2024-12-12 22:44:37.730139 - step 6 of 48 - 2000 active elements (0 deactivated)
20:14:53 INFO    opendrift.models.basemodel:2035: 2024-12-12 23:14:37.730139 - step 7 of 48 - 2000 active elements (0 deactivated)
20:14:55 INFO    opendrift.models.basemodel:2035: 2024-12-12 23:44:37.730139 - step 8 of 48 - 2000 active elements (0 deactivated)
20:14:55 INFO    opendrift.models.basemodel:2035: 2024-12-13 00:14:37.730139 - step 9 of 48 - 2000 active elements (0 deactivated)
20:14:57 INFO    opendrift.models.basemodel:2035: 2024-12-13 00:44:37.730139 - step 10 of 48 - 2000 active elements (0 deactivated)
20:14:57 INFO    opendrift.models.basemodel:2035: 2024-12-13 01:14:37.730139 - step 11 of 48 - 2000 active elements (0 deactivated)
20:14:58 INFO    opendrift.models.basemodel:2035: 2024-12-13 01:44:37.730139 - step 12 of 48 - 2000 active elements (0 deactivated)
20:14:58 INFO    opendrift.models.basemodel:2035: 2024-12-13 02:14:37.730139 - step 13 of 48 - 2000 active elements (0 deactivated)
20:15:00 INFO    opendrift.models.basemodel:2035: 2024-12-13 02:44:37.730139 - step 14 of 48 - 2000 active elements (0 deactivated)
20:15:00 INFO    opendrift.models.basemodel:2035: 2024-12-13 03:14:37.730139 - step 15 of 48 - 2000 active elements (0 deactivated)
20:15:01 INFO    opendrift.models.basemodel:2035: 2024-12-13 03:44:37.730139 - step 16 of 48 - 2000 active elements (0 deactivated)
20:15:01 INFO    opendrift.models.basemodel:2035: 2024-12-13 04:14:37.730139 - step 17 of 48 - 2000 active elements (0 deactivated)
20:15:02 INFO    opendrift.models.basemodel:2035: 2024-12-13 04:44:37.730139 - step 18 of 48 - 2000 active elements (0 deactivated)
20:15:02 INFO    opendrift.models.basemodel:2035: 2024-12-13 05:14:37.730139 - step 19 of 48 - 2000 active elements (0 deactivated)
20:15:04 INFO    opendrift.models.basemodel:2035: 2024-12-13 05:44:37.730139 - step 20 of 48 - 2000 active elements (0 deactivated)
20:15:04 INFO    opendrift.models.basemodel:2035: 2024-12-13 06:14:37.730139 - step 21 of 48 - 2000 active elements (0 deactivated)
20:15:06 INFO    opendrift.models.basemodel:2035: 2024-12-13 06:44:37.730139 - step 22 of 48 - 2000 active elements (0 deactivated)
20:15:06 INFO    opendrift.models.basemodel:2035: 2024-12-13 07:14:37.730139 - step 23 of 48 - 2000 active elements (0 deactivated)
20:15:07 INFO    opendrift.models.basemodel:2035: 2024-12-13 07:44:37.730139 - step 24 of 48 - 2000 active elements (0 deactivated)
20:15:07 INFO    opendrift.models.basemodel:2035: 2024-12-13 08:14:37.730139 - step 25 of 48 - 2000 active elements (0 deactivated)
20:15:09 INFO    opendrift.models.basemodel:2035: 2024-12-13 08:44:37.730139 - step 26 of 48 - 2000 active elements (0 deactivated)
20:15:09 INFO    opendrift.models.basemodel:2035: 2024-12-13 09:14:37.730139 - step 27 of 48 - 2000 active elements (0 deactivated)
20:15:11 INFO    opendrift.models.basemodel:2035: 2024-12-13 09:44:37.730139 - step 28 of 48 - 2000 active elements (0 deactivated)
20:15:11 INFO    opendrift.models.basemodel:2035: 2024-12-13 10:14:37.730139 - step 29 of 48 - 2000 active elements (0 deactivated)
20:15:13 INFO    opendrift.models.basemodel:2035: 2024-12-13 10:44:37.730139 - step 30 of 48 - 2000 active elements (0 deactivated)
20:15:13 INFO    opendrift.models.basemodel:2035: 2024-12-13 11:14:37.730139 - step 31 of 48 - 2000 active elements (0 deactivated)
20:15:14 INFO    opendrift.models.basemodel:2035: 2024-12-13 11:44:37.730139 - step 32 of 48 - 2000 active elements (0 deactivated)
20:15:14 INFO    opendrift.models.basemodel:2035: 2024-12-13 12:14:37.730139 - step 33 of 48 - 2000 active elements (0 deactivated)
20:15:16 INFO    opendrift.models.basemodel:2035: 2024-12-13 12:44:37.730139 - step 34 of 48 - 2000 active elements (0 deactivated)
20:15:16 INFO    opendrift.models.basemodel:2035: 2024-12-13 13:14:37.730139 - step 35 of 48 - 2000 active elements (0 deactivated)
20:15:17 INFO    opendrift.models.basemodel:2035: 2024-12-13 13:44:37.730139 - step 36 of 48 - 2000 active elements (0 deactivated)
20:15:17 INFO    opendrift.models.basemodel:2035: 2024-12-13 14:14:37.730139 - step 37 of 48 - 2000 active elements (0 deactivated)
20:15:19 INFO    opendrift.models.basemodel:2035: 2024-12-13 14:44:37.730139 - step 38 of 48 - 2000 active elements (0 deactivated)
20:15:19 INFO    opendrift.models.basemodel:2035: 2024-12-13 15:14:37.730139 - step 39 of 48 - 2000 active elements (0 deactivated)
20:15:20 INFO    opendrift.models.basemodel:2035: 2024-12-13 15:44:37.730139 - step 40 of 48 - 2000 active elements (0 deactivated)
20:15:20 INFO    opendrift.models.basemodel:2035: 2024-12-13 16:14:37.730139 - step 41 of 48 - 2000 active elements (0 deactivated)
20:15:22 INFO    opendrift.models.basemodel:2035: 2024-12-13 16:44:37.730139 - step 42 of 48 - 2000 active elements (0 deactivated)
20:15:22 INFO    opendrift.models.basemodel:2035: 2024-12-13 17:14:37.730139 - step 43 of 48 - 2000 active elements (0 deactivated)
20:15:23 INFO    opendrift.models.basemodel:2035: 2024-12-13 17:44:37.730139 - step 44 of 48 - 2000 active elements (0 deactivated)
20:15:23 INFO    opendrift.models.basemodel:2035: 2024-12-13 18:14:37.730139 - step 45 of 48 - 2000 active elements (0 deactivated)
20:15:25 INFO    opendrift.models.basemodel:2035: 2024-12-13 18:44:37.730139 - step 46 of 48 - 2000 active elements (0 deactivated)
20:15:26 INFO    opendrift.models.basemodel:2035: 2024-12-13 19:14:37.730139 - step 47 of 48 - 2000 active elements (0 deactivated)
20:15:28 INFO    opendrift.models.basemodel:2035: 2024-12-13 19:44:37.730139 - step 48 of 48 - 2000 active elements (0 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)
OpenDrift - OceanDrift 2024-12-12 20:14 to 2024-12-13 20:14 UTC (49 steps)
===========================
--------------------
Reader performance:
--------------------
global_landmask
 0:00:01.5  total
 0:00:00.0  preparing
 0:00:01.5  reading
 0:00:00.0  masking
--------------------
https://thredds.met.no/thredds/dodsC/sea/norkyst800m/1h/aggregate_be
 0:00:36.5  total
 0:00:00.0  preparing
 0:00:35.5  reading
 0:00:00.5  interpolation
 0:00:00.0  interpolation_time
 0:00:01.0  rotating vectors
 0:00:00.0  masking
--------------------
Performance:
   52.1 total time
    4.0 configuration
    0.0 preparing main loop
      0.0 moving elements to ocean
   48.0 main loop
      0.1 updating elements
    0.0 cleaning up
--------------------
===========================
Model:  OceanDrift     (OpenDrift version 1.12.0)
        1994 active Lagrangian3DArray particles  (6 deactivated, 0 scheduled)
-------------------
Environment variables:
  -----
  land_binary_mask
     1) global_landmask
  -----
  sea_floor_depth_below_sea_level
  sea_surface_height
  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_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

Discarded readers:

Time:
        Start: 2024-12-12 20:14:37.730139 UTC
        Present: 2024-12-13 20:14:37.730139 UTC
        Calculation steps: 48 * 0:30:00 - total time: 1 day, 0:00:00
        Output steps: 49 * 0:30:00
===========================

20:16:33 WARNING opendrift.models.basemodel:2410: Plotting fast. This will make your plots less accurate.
20:16:35 INFO    opendrift.models.basemodel:4613: Saving animation to /root/project/docs/source/gallery/animations/example_depth_0.gif...
20:17:09 INFO    opendrift.models.basemodel:3037: Time to make animation: 0:00:35.714221
../_images/example_depth_0.gif

Total running time of the script: (2 minutes 42.217 seconds)

Gallery generated by Sphinx-Gallery