Note
Go to the end to download the full example code.
Thredds resources for GUI
from datetime import datetime
from opendrift import test_data_folder as tdf
from opendrift.models.oceandrift import OceanDrift
from opendrift.readers.reader_netCDF_CF_generic import Reader
o = OceanDrift(loglevel=0)
thredds_resources = open(tdf + '../../opendrift/scripts/data_sources.txt').readlines()
times = {}
11:28:02 DEBUG opendrift.config:168: Adding 18 config items from __init__
11:28:02 DEBUG opendrift.config:178: Overwriting config item readers:max_number_of_fails
11:28:02 DEBUG opendrift.config:168: Adding 5 config items from __init__
11:28:02 INFO opendrift:507: OpenDriftSimulation initialised (version 1.14.2 / v1.14.2-23-g09d0c2d)
11:28:02 DEBUG opendrift.config:168: Adding 17 config items from oceandrift
11:28:02 DEBUG opendrift.config:178: Overwriting config item seed:z
Open each thredds dataset to check contents and spatial coverage
for t in thredds_resources:
if t.startswith('http') and not t.startswith('cmems'):
start = datetime.now()
print('\n#%%\n%s\n' % t)
r = Reader(t)
print(r)
ts = str(datetime.now() - start)
times[t] = ts
print('Time to open reader: ', ts)
if r.global_coverage():
lscale = 'coarse'
else:
lscale = 'intermediate'
r.plot(lscale=lscale)
#%
https://thredds.met.no/thredds/dodsC/sea/norkyst800m/1h/aggregate_be
11:28:02 INFO opendrift.readers:61: Opening file with xr.open_dataset
11:28:02 DEBUG gribapi.bindings:58: eccodes lib search: trying to find binary wheel
11:28:02 DEBUG gribapi.bindings:65: eccodes lib search: looking in /opt/conda/envs/opendrift/lib/python3.13/site-packages/eccodes.libs
11:28:02 DEBUG gribapi.bindings:65: eccodes lib search: looking in /opt/conda/envs/opendrift/lib/python3.13/site-packages/eccodes/.dylibs
11:28:02 DEBUG gribapi.bindings:65: eccodes lib search: looking in /opt/conda/envs/opendrift/lib/python3.13/site-packages/eccodes
11:28:02 DEBUG gribapi.bindings:91: eccodes lib search: did not find library from wheel; try to find as separate lib
11:28:02 DEBUG gribapi.bindings:99: eccodes lib search: findlibs returned /opt/conda/envs/opendrift/lib/libeccodes.so
11:28:07 DEBUG opendrift.readers.reader_netCDF_CF_generic:128: Finding coordinate variables.
11:28:07 DEBUG opendrift.readers.reader_netCDF_CF_generic:143: Parsing CF grid mapping dictionary: {'grid_mapping_name': 'polar_stereographic', 'straight_vertical_longitude_from_pole': np.float64(70.0), 'latitude_of_projection_origin': np.float64(90.0), 'standard_parallel': np.float64(60.0), 'false_easting': np.float64(3192800.0), 'false_northing': np.float64(1784000.0), 'semi_major_axis': np.float64(6378137.0), 'semi_minor_axis': np.float64(6356752.3142), 'proj4': '+proj=stere +lat_0=90 +lat_ts=60 +lon_0=70 +x_0=3192800 +y_0=1784000 +a=6378137 +b=6356752.3142 +units=m +no_defs +type=crs'}
11:28:07 DEBUG pyproj:40: PROJ_ERROR: proj_create: several objects matching this name: Krovak (Greenwich), Equal Earth Greenwich, Laborde Grid (Greenwich), Modified Krovak (Greenwich), Krovak East North (Greenwich), Modified Krovak East North (Greenwich), ...
11:28:07 INFO opendrift.readers.reader_netCDF_CF_generic:332: Detected dimensions: {'x': 'X', 'y': 'Y', 'z': 'depth', 'time': 'time'}
11:28:07 DEBUG opendrift.readers.reader_netCDF_CF_generic:368: Skipped variables without standard_name: ['angle', 'tke', 'ubar', 'vbar']
11:28:07 DEBUG opendrift.readers.basereader.variables:612: Setting buffer size 25 for reader https://thredds.met.no/thredds/dodsC/sea/norkyst800m/1h/aggregate_be
, assuming a maximum average speed of 5 m/s and time span of 1:00:00
11:28:07 DEBUG opendrift.readers.basereader:186: Variable mapping: ['sea_floor_depth_below_sea_level'] -> ['land_binary_mask'] is not activated
11:28:07 DEBUG opendrift.readers.basereader.variables:567: Adding variable mapping: ['x_wind', 'y_wind'] -> wind_speed
11:28:07 DEBUG opendrift.readers.basereader.variables:567: Adding variable mapping: ['x_sea_water_velocity', 'y_sea_water_velocity'] -> sea_water_speed
===========================
Reader: https://thredds.met.no/thredds/dodsC/sea/norkyst800m/1h/aggregate_be
Projection:
+proj=stere +lat_0=90 +lat_ts=60 +lon_0=70 +x_0=3192800 +y_0=1784000 +a=6378137 +b=6356752.3142 +units=m +no_defs +type=crs
Coverage: [degrees]
xmin: 0.000000 xmax: 2080800.000000 step: 800 numx: 2602
ymin: 0.000000 ymax: 720800.000000 step: 800 numy: 902
Corners (lon, lat):
( -1.58, 58.50) ( 23.71, 75.32)
( 9.19, 55.91) ( 38.06, 70.03)
Vertical levels [m]:
[ -0. -3. -10. -15. -25. -50. -75. -100. -150. -200.
-250. -300. -500. -1000. -2000. -3000.]
Available time range:
start: 2017-02-20 00:00:00 end: 2025-06-01 00:00:00 step: 1:00:00
72553 times (3492 missing)
Variables:
sea_floor_depth_below_sea_level
latitude
longitude
x_wind
y_wind
sea_water_salinity
sea_water_temperature
x_sea_water_velocity
eastward_sea_water_velocity
y_sea_water_velocity
northward_sea_water_velocity
upward_sea_water_velocity
sea_surface_height
wind_speed - derived from ['x_wind', 'y_wind']
sea_water_speed - derived from ['x_sea_water_velocity', 'y_sea_water_velocity']
===========================
Time to open reader: 0:00:04.777123
#%
https://thredds.met.no/thredds/dodsC/mepslatest/meps_lagged_6_h_latest_2_5km_latest.nc
11:28:12 INFO opendrift.readers:61: Opening file with xr.open_dataset
11:28:13 DEBUG opendrift.readers.reader_netCDF_CF_generic:128: Finding coordinate variables.
11:28:13 DEBUG opendrift.readers.reader_netCDF_CF_generic:237: 30 ensemble members available
11:28:13 DEBUG opendrift.readers.reader_netCDF_CF_generic:143: Parsing CF grid mapping dictionary: {'grid_mapping_name': 'lambert_conformal_conic', 'standard_parallel': array([63.3, 63.3]), 'longitude_of_central_meridian': np.float64(15.0), 'latitude_of_projection_origin': np.float64(63.3), 'earth_radius': np.float64(6371000.0)}
11:28:13 DEBUG pyproj:40: PROJ_ERROR: proj_create: several objects matching this name: Krovak (Greenwich), Equal Earth Greenwich, Laborde Grid (Greenwich), Modified Krovak (Greenwich), Krovak East North (Greenwich), Modified Krovak East North (Greenwich), ...
11:28:13 INFO opendrift.readers.reader_netCDF_CF_generic:332: Detected dimensions: {'time': 'time', 'x': 'x', 'y': 'y'}
11:28:13 DEBUG opendrift.readers.reader_netCDF_CF_generic:368: Skipped variables without standard_name: ['fog_area_fraction']
11:28:13 DEBUG opendrift.readers.basereader.variables:612: Setting buffer size 10 for reader https://thredds.met.no/thredds/dodsC/mepslatest/meps_lagged_6_h_latest_2_5km_latest.nc
, assuming a maximum average speed of 5 m/s and time span of 1:00:00
11:28:13 DEBUG opendrift.readers.basereader:186: Variable mapping: ['sea_floor_depth_below_sea_level'] -> ['land_binary_mask'] is not activated
11:28:13 DEBUG opendrift.readers.basereader.variables:567: Adding variable mapping: ['x_wind', 'y_wind'] -> wind_speed
===========================
Reader: https://thredds.met.no/thredds/dodsC/mepslatest/meps_lagged_6_h_latest_2_5km_latest.nc
Projection:
+proj=lcc +lat_0=63.3 +lon_0=15 +lat_1=63.3 +lat_2=63.3 +x_0=0 +y_0=0 +R=6371000 +units=m +no_defs +type=crs
Coverage: [degrees]
xmin: -1060084.000000 xmax: 1309916.000000 step: 2500 numx: 949
ymin: -1332517.875000 ymax: 1337482.125000 step: 2500 numy: 1069
Corners (lon, lat):
(-18.12, 72.76) ( 54.24, 71.58)
( 0.28, 50.32) ( 33.03, 49.77)
Vertical levels [m]:
Not specified
Available time range:
start: 2025-05-28 08:00:00 end: 2025-05-30 21:00:00 step: 1:00:00
62 times (0 missing)
Variables (30 ensemble members):
longitude
latitude
x_wind
y_wind
air_temperature
relative_humidity
cloud_area_fraction
air_pressure_at_sea_level
precipitation_amount
snowfall_amount
wind_speed_of_gust
wind_speed - derived from ['x_wind', 'y_wind']
===========================
Time to open reader: 0:00:00.986264
#%
https://thredds.met.no/thredds/dodsC/fou-hi/barents_eps_zdepth_be
11:28:14 INFO opendrift.readers:61: Opening file with xr.open_dataset
11:28:17 DEBUG opendrift.readers.reader_netCDF_CF_generic:128: Finding coordinate variables.
11:28:17 DEBUG opendrift.readers.reader_netCDF_CF_generic:143: Parsing CF grid mapping dictionary: {'grid_mapping_name': 'lambert_conformal_conic', 'standard_parallel': array([77.5, 77.5], dtype=float32), 'longitude_of_central_meridian': np.float32(-25.0), 'latitude_of_projection_origin': np.float32(77.5), 'earth_radius': np.float32(6371000.0), 'proj4': '+proj=lcc +lat_0=77.5 +lon_0=-25 +lat_1=77.5 +lat_2=77.5 +no_defs +R=6.371e+06'}
11:28:17 DEBUG pyproj:40: PROJ_ERROR: proj_create: several objects matching this name: Krovak (Greenwich), Equal Earth Greenwich, Laborde Grid (Greenwich), Modified Krovak (Greenwich), Krovak East North (Greenwich), Modified Krovak East North (Greenwich), ...
11:28:17 INFO opendrift.readers.reader_netCDF_CF_generic:332: Detected dimensions: {'x': 'X', 'y': 'Y', 'z': 'depth', 'time': 'time'}
11:28:17 DEBUG opendrift.readers.reader_netCDF_CF_generic:368: Skipped variables without standard_name: ['angle']
11:28:17 DEBUG opendrift.readers.basereader.variables:612: Setting buffer size 10 for reader https://thredds.met.no/thredds/dodsC/fou-hi/barents_eps_zdepth_be
, assuming a maximum average speed of 5 m/s and time span of 1:00:00
11:28:17 INFO opendrift.readers.basereader:176: Variable x_sea_water_velocity will be rotated from eastward_sea_water_velocity
11:28:17 INFO opendrift.readers.basereader:176: Variable y_sea_water_velocity will be rotated from northward_sea_water_velocity
11:28:17 DEBUG opendrift.readers.basereader:186: Variable mapping: ['sea_floor_depth_below_sea_level'] -> ['land_binary_mask'] is not activated
11:28:17 DEBUG opendrift.readers.basereader.variables:567: Adding variable mapping: ['x_wind', 'y_wind'] -> wind_speed
11:28:17 DEBUG opendrift.readers.basereader.variables:567: Adding variable mapping: ['sea_ice_x_velocity', 'sea_ice_y_velocity'] -> sea_ice_speed
11:28:17 DEBUG opendrift.readers.basereader.variables:567: Adding variable mapping: ['x_sea_water_velocity', 'y_sea_water_velocity'] -> sea_water_speed
===========================
Reader: https://thredds.met.no/thredds/dodsC/fou-hi/barents_eps_zdepth_be
Projection:
+proj=lcc +lat_0=77.5 +lon_0=-25 +lat_1=77.5 +lat_2=77.5 +x_0=0 +y_0=0 +R=6371000 +units=m +no_defs +type=crs
Coverage: [degrees]
xmin: 278603.187500 xmax: 2123602.750000 step: 2500 numx: 738
ymin: -897931.625000 ymax: 1472067.625000 step: 2500 numy: 948
Corners (lon, lat):
( 79.56, 87.57) ( 68.83, 71.11)
(-17.96, 69.30) ( 18.62, 62.13)
Vertical levels [m]:
[ -0. -3. -10. -15. -25. -50. -75. -100. -150. -200.
-250. -300. -500. -1000. -2000. -3000.]
Available time range:
start: 2022-06-29 00:00:00 end: 2025-06-01 00:00:00 step: 1:00:00
25633 times (648 missing)
Variables:
sea_floor_depth_below_sea_level
latitude
longitude
sea_binary_mask
ocean_vertical_diffusivity
x_wind
y_wind
sea_ice_area_fraction
sea_ice_thickness
sea_ice_x_velocity
sea_ice_y_velocity
sea_water_salinity
sea_water_temperature
eastward_sea_water_velocity
northward_sea_water_velocity
upward_sea_water_velocity
sea_surface_height
x_sea_water_velocity
y_sea_water_velocity
wind_speed - derived from ['x_wind', 'y_wind']
sea_ice_speed - derived from ['sea_ice_x_velocity', 'sea_ice_y_velocity']
sea_water_speed - derived from ['x_sea_water_velocity', 'y_sea_water_velocity']
===========================
Time to open reader: 0:00:03.284073
#%
https://thredds.met.no/thredds/dodsC/cmems/mywavewam3km/dataset-wam-arctic-1hr3km-be.ncml
11:28:17 INFO opendrift.readers:61: Opening file with xr.open_dataset
11:28:24 DEBUG opendrift.readers.reader_netCDF_CF_generic:128: Finding coordinate variables.
11:28:24 DEBUG opendrift.readers.reader_netCDF_CF_generic:143: Parsing CF grid mapping dictionary: {'grid_mapping_name': 'polar_stereographic', 'scale_factor_at_projection_origin': np.float64(1.0), 'straight_vertical_longitude_from_pole': np.float64(-45.0), 'latitude_of_projection_origin': np.float64(90.0), 'earth_radius': np.float64(6371000.0), 'proj4': '+proj=stere +lon_0=-45 +lat_0=90 +k=1 +R=6371000 +no_defs'}
11:28:24 DEBUG pyproj:40: PROJ_ERROR: proj_create: several objects matching this name: Krovak (Greenwich), Equal Earth Greenwich, Laborde Grid (Greenwich), Modified Krovak (Greenwich), Krovak East North (Greenwich), Modified Krovak East North (Greenwich), ...
11:28:25 INFO opendrift.readers.reader_netCDF_CF_generic:332: Detected dimensions: {'y': 'rlat', 'x': 'rlon', 'time': 'time'}
11:28:25 DEBUG opendrift.readers.basereader.variables:612: Setting buffer size 8 for reader https://thredds.met.no/thredds/dodsC/cmems/mywavewam3km/dataset-wam-arctic-1hr3km-be.ncml
, assuming a maximum average speed of 5 m/s and time span of 1:00:00
11:28:25 DEBUG opendrift.readers.basereader:186: Variable mapping: ['sea_floor_depth_below_sea_level'] -> ['land_binary_mask'] is not activated
11:28:25 DEBUG opendrift.readers.basereader.variables:567: Adding variable mapping: ['sea_water_speed', 'sea_water_to_direction'] -> x_sea_water_velocity
11:28:25 DEBUG opendrift.readers.basereader.variables:567: Adding variable mapping: ['sea_water_speed', 'sea_water_to_direction'] -> y_sea_water_velocity
11:28:25 DEBUG opendrift.readers.basereader.variables:567: Adding variable mapping: ['sea_surface_wave_stokes_drift_x_velocity', 'sea_surface_wave_stokes_drift_y_velocity'] -> sea_surface_wave_stokes_drift_speed
===========================
Reader: https://thredds.met.no/thredds/dodsC/cmems/mywavewam3km/dataset-wam-arctic-1hr3km-be.ncml
Projection:
+proj=stere +lat_0=90 +lon_0=-45 +k=1 +x_0=0 +y_0=0 +R=6371000 +units=m +no_defs +type=crs
Coverage: [degrees]
xmin: -3600000.000000 xmax: 3798000.000000 step: 3000 numx: 2467
ymin: -4300000.000000 ymax: 2798000.000000 step: 3000 numy: 2367
Corners (lon, lat):
(-172.86, 50.62) ( 81.38, 49.37)
(-84.94, 42.49) ( -3.55, 41.52)
Vertical levels [m]:
Not specified
Available time range:
start: 2022-08-01 00:00:00 end: 2025-06-06 12:00:00 step: 1:00:00
24973 times (0 missing)
Variables:
sea_floor_depth_below_sea_level
longitude
latitude
sea_ice_area_fraction
sea_ice_thickness
sea_water_speed
sea_water_to_direction
sea_surface_wave_significant_height
sea_surface_wave_period_at_variance_spectral_density_maximum
sea_surface_wave_mean_period_from_variance_spectral_density_inverse_frequency_moment
sea_surface_wave_mean_period_from_variance_spectral_density_second_frequency_moment
sea_surface_wave_from_direction
sea_surface_wind_wave_significant_height
sea_surface_wind_wave_mean_period_from_variance_spectral_density_first_frequency_moment
sea_surface_wind_wave_from_direction
sea_surface_primary_swell_wave_significant_height
sea_surface_primary_swell_wave_mean_period
sea_surface_primary_swell_wave_from_direction
sea_surface_secondary_swell_wave_significant_height
sea_surface_secondary_swell_wave_mean_period
sea_surface_secondary_swell_wave_from_direction
sea_surface_wave_from_direction_at_variance_spectral_density_maximum
sea_surface_wave_stokes_drift_x_velocity
sea_surface_wave_stokes_drift_y_velocity
sea_surface_wave_maximum_crest_height
sea_surface_wave_maximum_height
x_sea_water_velocity - derived from ['sea_water_speed', 'sea_water_to_direction']
y_sea_water_velocity - derived from ['sea_water_speed', 'sea_water_to_direction']
sea_surface_wave_stokes_drift_speed - derived from ['sea_surface_wave_stokes_drift_x_velocity', 'sea_surface_wave_stokes_drift_y_velocity']
===========================
Time to open reader: 0:00:07.720662
#%
https://thredds.met.no/thredds/dodsC/ww3_4km_agg
11:28:25 INFO opendrift.readers:61: Opening file with xr.open_dataset
11:28:35 DEBUG opendrift.readers.reader_netCDF_CF_generic:128: Finding coordinate variables.
11:28:35 DEBUG opendrift.readers.reader_netCDF_CF_generic:143: Parsing CF grid mapping dictionary: {'proj4': '+proj=ob_tran +o_proj=longlat +lon_0=-40 +o_lat_p=22 +R=6.371e+06 +no_defs', 'grid_mapping_name': 'rotated_latitude_longitude', 'grid_north_pole_longitude': np.float64(140.0), 'grid_north_pole_latitude': np.float64(22.0), 'earth_radius': np.float64(6371000.0)}
11:28:36 DEBUG pyproj:40: PROJ_ERROR: proj_create: several objects matching this name: Krovak (Greenwich), Equal Earth Greenwich, Laborde Grid (Greenwich), Modified Krovak (Greenwich), Krovak East North (Greenwich), Modified Krovak East North (Greenwich), ...
11:28:36 INFO opendrift.readers.reader_netCDF_CF_generic:332: Detected dimensions: {'y': 'rlat', 'x': 'rlon', 'time': 'time'}
11:28:36 DEBUG opendrift.readers.basereader.variables:612: Setting buffer size 7 for reader https://thredds.met.no/thredds/dodsC/ww3_4km_agg
, assuming a maximum average speed of 5 m/s and time span of 1:00:00
11:28:36 INFO opendrift.readers.basereader:176: Variable x_wind will be rotated from eastward_wind
11:28:36 INFO opendrift.readers.basereader:176: Variable y_wind will be rotated from northward_wind
11:28:36 INFO opendrift.readers.basereader:176: Variable sea_surface_wave_stokes_drift_x_velocity will be rotated from eastward_surface_stokes_drift
11:28:36 INFO opendrift.readers.basereader:176: Variable sea_surface_wave_stokes_drift_y_velocity will be rotated from northward_surface_stokes_drift
11:28:36 DEBUG opendrift.readers.basereader:186: Variable mapping: ['sea_floor_depth_below_sea_level'] -> ['land_binary_mask'] is not activated
11:28:36 DEBUG opendrift.readers.basereader.variables:567: Adding variable mapping: ['sea_surface_wave_stokes_drift_x_velocity', 'sea_surface_wave_stokes_drift_y_velocity'] -> sea_surface_wave_stokes_drift_speed
11:28:36 DEBUG opendrift.readers.basereader.variables:116: NB: Converting degrees to radians due to ob_tran srs
===========================
Reader: https://thredds.met.no/thredds/dodsC/ww3_4km_agg
Projection:
+proj=ob_tran +o_proj=longlat +o_lon_p=0 +o_lat_p=22 +lon_0=320 +R=6371000 +no_defs +type=crs
Coverage: [degrees]
xmin: 5.530000 xmax: 30.450000 step: 0.04 numx: 623
ymin: -14.350000 ymax: 26.650000 step: 0.04 numy: 1026
Corners (lon, lat):
( 93.81, 83.15) ( 65.69, 61.93)
(-31.02, 53.25) ( 2.14, 42.96)
Vertical levels [m]:
Not specified
Available time range:
start: 2023-04-20 06:00:00 end: 2025-05-29 23:00:00 step: 1:00:00
18498 times (0 missing)
Variables:
longitude
latitude
status map
sea_surface_wave_peak_frequency
depth
eastward_wind
northward_wind
sea_ice_area_fraction
sea_surface_wave_significant_height
mean_wave_length
sea_surface_wind_wave_mean_period_from_variance_spectral_density_second_frequency_moment
sea_surface_wind_wave_mean_period_from_variance_spectral_density_inverse_frequency_moment
sea_surface_wind_wave_mean_period_from_variance_spectral_density_first_frequency_moment
sea_surface_wave_from_direction
sea_surface_wave_directional_spread
sea_surface_wave_peak_direction
sea_surface_wave_maximum_height
sea_surface_wave_maximum_crest_height
sea_surface_wave_maximum_height_std
sea_surface_wave_maximum_crest_height_std
sea_surface_wave_significant_height_partition_0
sea_surface_wave_significant_height_partition_1
sea_surface_wave_period_at_variance_spectral_density_maximum_partition_0
sea_surface_wave_period_at_variance_spectral_density_maximum_partition_1
sea_surface_wave_from_direction_partition_0
sea_surface_wave_from_direction_partition_1
sea_surface_swell_wave_mean_period_from_variance_spectral_density_first_frequency_moment
sea_surface_swell_wave_mean_period_from_variance_spectral_density_second_frequency_moment
eastward_friction_velocity
northward_friction_velocity
charnock_coefficient_for_surface_roughness_length_for_momentum_in_air
wind_mixing_energy_flux_into_sea_water
eastward_wave_supported_wind_stress
northward_wave_supported_wind_stress
sea_surface_wave_mean_period_from_variance_spectral_density_inverse_frequency_moment
eastward_wave_to_ocean_stress
northward_wave_to_ocean_stress
wave_to_ocean_energy_flux
eastward_stokes_transport
northward_stokes_transport
eastward_surface_stokes_drift
northward_surface_stokes_drift
eastward_wave_to_sea_ice_stress
northward_wave_to_sea_ice_stress
wave_to_sea_ice_energy_flux
sea_surface_wave_period_at_variance_spectral_density_maximum
wind_speed
wind_from_direction
x_wind
y_wind
sea_surface_wave_stokes_drift_x_velocity
sea_surface_wave_stokes_drift_y_velocity
sea_surface_wave_stokes_drift_speed - derived from ['sea_surface_wave_stokes_drift_x_velocity', 'sea_surface_wave_stokes_drift_y_velocity']
===========================
Time to open reader: 0:00:11.053610
11:28:36 DEBUG opendrift.readers.basereader.variables:116: NB: Converting degrees to radians due to ob_tran srs
11:28:36 DEBUG opendrift.readers.basereader.variables:116: NB: Converting degrees to radians due to ob_tran srs
11:28:36 DEBUG opendrift.readers.basereader.variables:116: NB: Converting degrees to radians due to ob_tran srs
#%
https://thredds.met.no/thredds/dodsC/cmems/topaz6/dataset-topaz6-arc-15min-3km-be.ncml
11:28:36 INFO opendrift.readers:61: Opening file with xr.open_dataset
11:28:46 DEBUG opendrift.readers.reader_netCDF_CF_generic:128: Finding coordinate variables.
11:28:46 DEBUG opendrift.readers.reader_netCDF_CF_generic:143: Parsing CF grid mapping dictionary: {'grid_mapping_name': 'polar_stereographic', 'latitude_of_projection_origin': np.float64(90.0), 'longitude_of_projection_origin': np.float64(-45.0), 'scale_factor_at_projection_origin': np.float64(1.0), 'straight_vertical_longitude_from_pole': np.float64(-45.0), 'earth_radius': np.float64(6378273.0), 'proj4': '+proj=stere +lon_0=-45 +lat_0=90 +k=1 +R=6378273 +no_defs', 'false_easting': np.float64(0.0), 'false_northing': np.float64(0.0)}
11:28:47 DEBUG pyproj:40: PROJ_ERROR: proj_create: several objects matching this name: Krovak (Greenwich), Equal Earth Greenwich, Laborde Grid (Greenwich), Modified Krovak (Greenwich), Krovak East North (Greenwich), Modified Krovak East North (Greenwich), ...
11:28:47 INFO opendrift.readers.reader_netCDF_CF_generic:332: Detected dimensions: {'x': 'x', 'y': 'y', 'time': 'time'}
11:28:47 DEBUG opendrift.readers.basereader.variables:612: Setting buffer size 4 for reader https://thredds.met.no/thredds/dodsC/cmems/topaz6/dataset-topaz6-arc-15min-3km-be.ncml
, assuming a maximum average speed of 5 m/s and time span of 0:15:00
11:28:47 DEBUG opendrift.readers.basereader:186: Variable mapping: ['sea_floor_depth_below_sea_level'] -> ['land_binary_mask'] is not activated
11:28:47 DEBUG opendrift.readers.basereader.variables:567: Adding variable mapping: ['x_sea_water_velocity', 'y_sea_water_velocity'] -> sea_water_speed
===========================
Reader: https://thredds.met.no/thredds/dodsC/cmems/topaz6/dataset-topaz6-arc-15min-3km-be.ncml
Projection:
+proj=stere +lat_0=90 +lon_0=-45 +k=1 +x_0=0 +y_0=0 +R=6378273 +units=m +no_defs +type=crs
Coverage: [degrees]
xmin: -3600000.000000 xmax: 3798000.000000 step: 3000 numx: 2467
ymin: -4300000.000000 ymax: 2798000.000000 step: 3000 numy: 2367
Corners (lon, lat):
(-172.86, 50.66) ( 81.38, 49.41)
(-84.94, 42.54) ( -3.55, 41.57)
Vertical levels [m]:
Not specified
Available time range:
start: 2018-01-01 00:00:00 end: 2025-06-05 23:45:00 step: 0:15:00
260448 times (0 missing)
Variables:
longitude
latitude
sea_floor_depth_below_sea_level
x_sea_water_velocity
y_sea_water_velocity
sea_surface_height
sea_water_speed - derived from ['x_sea_water_velocity', 'y_sea_water_velocity']
===========================
Time to open reader: 0:00:11.152993
#%
https://thredds.met.no/thredds/dodsC/aromearcticlatest/latest/arome_arctic_lagged_6_h_latest_2_5km_latest.nc
11:28:47 INFO opendrift.readers:61: Opening file with xr.open_dataset
11:28:48 DEBUG opendrift.readers.reader_netCDF_CF_generic:128: Finding coordinate variables.
11:28:48 DEBUG opendrift.readers.reader_netCDF_CF_generic:237: 6 ensemble members available
11:28:48 DEBUG opendrift.readers.reader_netCDF_CF_generic:143: Parsing CF grid mapping dictionary: {'grid_mapping_name': 'lambert_conformal_conic', 'standard_parallel': array([77.5, 77.5]), 'longitude_of_central_meridian': np.float64(-25.0), 'latitude_of_projection_origin': np.float64(77.5), 'earth_radius': np.float64(6371000.0)}
11:28:48 DEBUG pyproj:40: PROJ_ERROR: proj_create: several objects matching this name: Krovak (Greenwich), Equal Earth Greenwich, Laborde Grid (Greenwich), Modified Krovak (Greenwich), Krovak East North (Greenwich), Modified Krovak East North (Greenwich), ...
11:28:48 INFO opendrift.readers.reader_netCDF_CF_generic:332: Detected dimensions: {'time': 'time', 'x': 'x', 'y': 'y'}
11:28:48 DEBUG opendrift.readers.reader_netCDF_CF_generic:368: Skipped variables without standard_name: ['fog_area_fraction']
11:28:48 DEBUG opendrift.readers.basereader.variables:612: Setting buffer size 10 for reader https://thredds.met.no/thredds/dodsC/aromearcticlatest/latest/arome_arctic_lagged_6_h_latest_2_5km_latest.nc
, assuming a maximum average speed of 5 m/s and time span of 1:00:00
11:28:48 DEBUG opendrift.readers.basereader:186: Variable mapping: ['sea_floor_depth_below_sea_level'] -> ['land_binary_mask'] is not activated
11:28:48 DEBUG opendrift.readers.basereader.variables:567: Adding variable mapping: ['x_wind', 'y_wind'] -> wind_speed
===========================
Reader: https://thredds.met.no/thredds/dodsC/aromearcticlatest/latest/arome_arctic_lagged_6_h_latest_2_5km_latest.nc
Projection:
+proj=lcc +lat_0=77.5 +lon_0=-25 +lat_1=77.5 +lat_2=77.5 +x_0=0 +y_0=0 +R=6371000 +units=m +no_defs +type=crs
Coverage: [degrees]
xmin: 278620.937500 xmax: 2123621.000000 step: 2500 numx: 739
ymin: -897985.687500 ymax: 1472014.250000 step: 2500 numy: 949
Corners (lon, lat):
( 79.55, 87.57) ( 68.83, 71.11)
(-17.96, 69.30) ( 18.62, 62.13)
Vertical levels [m]:
Not specified
Available time range:
start: 2025-05-28 09:00:00 end: 2025-05-30 22:00:00 step: 1:00:00
62 times (0 missing)
Variables (6 ensemble members):
longitude
latitude
x_wind
y_wind
air_temperature
relative_humidity
cloud_area_fraction
air_pressure_at_sea_level
precipitation_amount
snowfall_amount
wind_speed_of_gust
wind_speed - derived from ['x_wind', 'y_wind']
===========================
Time to open reader: 0:00:01.144002
#%
https://pae-paha.pacioos.hawaii.edu/thredds/dodsC/ncep_global/NCEP_Global_Atmospheric_Model_best.ncd
11:28:48 INFO opendrift.readers:61: Opening file with xr.open_dataset
11:28:50 DEBUG opendrift.readers.reader_netCDF_CF_generic:128: Finding coordinate variables.
11:28:50 DEBUG opendrift.readers.reader_netCDF_CF_generic:262: Lon and lat are 1D arrays - using as projection coordinates
11:28:50 INFO opendrift.readers.reader_netCDF_CF_generic:332: Detected dimensions: {'time': 'time', 'x': 'longitude', 'y': 'latitude'}
11:28:50 DEBUG opendrift.readers.basereader.variables:612: Setting buffer size 3 for reader https://pae-paha.pacioos.hawaii.edu/thredds/dodsC/ncep_global/NCEP_Global_Atmospheric_Model_best.ncd
, assuming a maximum average speed of 5 m/s and time span of 3:00:00
11:28:50 INFO opendrift.readers.basereader:176: Variable x_wind will be rotated from eastward_wind
11:28:50 INFO opendrift.readers.basereader:176: Variable y_wind will be rotated from northward_wind
11:28:50 DEBUG opendrift.readers.basereader:186: Variable mapping: ['sea_floor_depth_below_sea_level'] -> ['land_binary_mask'] is not activated
11:28:50 DEBUG opendrift.readers.basereader.variables:567: Adding variable mapping: ['x_wind', 'y_wind'] -> wind_speed
===========================
Reader: https://pae-paha.pacioos.hawaii.edu/thredds/dodsC/ncep_global/NCEP_Global_Atmospheric_Model_best.ncd
Projection:
+proj=latlong
Coverage: [degrees]
xmin: 0.000000 xmax: 359.500000 step: 0.5 numx: 720
ymin: -90.000000 ymax: 90.000000 step: 0.5 numy: 361
Corners (lon, lat):
( 0.00, 90.00) (359.50, 90.00)
( 0.00, -90.00) (359.50, -90.00)
Vertical levels [m]:
Not specified
Available time range:
start: 2022-12-01 12:00:00 end: 2025-06-04 12:00:00 step: 3:00:00
7329 times (0 missing)
Variables:
air_pressure_at_sea_level
surface_downwelling_longwave_flux
surface_downwelling_shortwave_flux
precipitation_flux
relative_humidity
surface_temperature
air_temperature
eastward_wind
surface_upwelling_longwave_flux
surface_upwelling_shortwave_flux
northward_wind
x_wind
y_wind
wind_speed - derived from ['x_wind', 'y_wind']
===========================
Time to open reader: 0:00:01.829442
#%
https://tds.hycom.org/thredds/dodsC/FMRC_ESPC-D-V02_uv3z/FMRC_ESPC-D-V02_uv3z_best.ncd
11:28:50 INFO opendrift.readers:61: Opening file with xr.open_dataset
11:28:50 WARNING opendrift.readers:67: Removing variables that cannot be CF decoded: ['tau']
11:28:50 DEBUG opendrift.readers.reader_netCDF_CF_generic:128: Finding coordinate variables.
11:28:50 INFO opendrift.readers.reader_netCDF_CF_generic:299: Grid coordinates are detected, but proj4 string not given: assuming latlong
11:28:50 INFO opendrift.readers.reader_netCDF_CF_generic:332: Detected dimensions: {'z': 'depth', 'y': 'lat', 'x': 'lon', 'time': 'time'}
11:28:50 DEBUG opendrift.readers.basereader.variables:612: Setting buffer size 9 for reader https://tds.hycom.org/thredds/dodsC/FMRC_ESPC-D-V02_uv3z/FMRC_ESPC-D-V02_uv3z_best.ncd
, assuming a maximum average speed of 5 m/s and time span of 3:00:00
11:28:50 INFO opendrift.readers.basereader:176: Variable y_sea_water_velocity will be rotated from northward_sea_water_velocity
11:28:50 INFO opendrift.readers.basereader:176: Variable x_sea_water_velocity will be rotated from eastward_sea_water_velocity
11:28:50 DEBUG opendrift.readers.basereader:186: Variable mapping: ['sea_floor_depth_below_sea_level'] -> ['land_binary_mask'] is not activated
11:28:50 DEBUG opendrift.readers.basereader.variables:567: Adding variable mapping: ['x_sea_water_velocity', 'y_sea_water_velocity'] -> sea_water_speed
===========================
Reader: https://tds.hycom.org/thredds/dodsC/FMRC_ESPC-D-V02_uv3z/FMRC_ESPC-D-V02_uv3z_best.ncd
Projection:
+proj=latlong
Coverage: [degrees]
xmin: 0.000000 xmax: 359.920044 step: 0.0799561 numx: 4502
ymin: -80.000000 ymax: 90.000000 step: 0.0400009 numy: 4250
Corners (lon, lat):
( 0.00, 90.00) (359.92, 90.00)
( 0.00, -80.00) (359.92, -80.00)
Vertical levels [m]:
[ -0. -2. -4. -6. -8. -10. -12. -15. -20. -25.
-30. -35. -40. -45. -50. -60. -70. -80. -90. -100.
-125. -150. -200. -250. -300. -350. -400. -500. -600. -700.
-800. -900. -1000. -1250. -1500. -2000. -2500. -3000. -4000. -5000.]
Available time range:
start: 2025-05-19 12:00:00 end: 2025-06-03 12:00:00 step: 3:00:00
121 times (0 missing)
Variables:
northward_sea_water_velocity
eastward_sea_water_velocity
y_sea_water_velocity
x_sea_water_velocity
sea_water_speed - derived from ['x_sea_water_velocity', 'y_sea_water_velocity']
===========================
Time to open reader: 0:00:00.381776
Summary of times to open each dataset:
for t, time in times.items():
print(time, t)
0:00:04.777123 https://thredds.met.no/thredds/dodsC/sea/norkyst800m/1h/aggregate_be
0:00:00.986264 https://thredds.met.no/thredds/dodsC/mepslatest/meps_lagged_6_h_latest_2_5km_latest.nc
0:00:03.284073 https://thredds.met.no/thredds/dodsC/fou-hi/barents_eps_zdepth_be
0:00:07.720662 https://thredds.met.no/thredds/dodsC/cmems/mywavewam3km/dataset-wam-arctic-1hr3km-be.ncml
0:00:11.053610 https://thredds.met.no/thredds/dodsC/ww3_4km_agg
0:00:11.152993 https://thredds.met.no/thredds/dodsC/cmems/topaz6/dataset-topaz6-arc-15min-3km-be.ncml
0:00:01.144002 https://thredds.met.no/thredds/dodsC/aromearcticlatest/latest/arome_arctic_lagged_6_h_latest_2_5km_latest.nc
0:00:01.829442 https://pae-paha.pacioos.hawaii.edu/thredds/dodsC/ncep_global/NCEP_Global_Atmospheric_Model_best.ncd
0:00:00.381776 https://tds.hycom.org/thredds/dodsC/FMRC_ESPC-D-V02_uv3z/FMRC_ESPC-D-V02_uv3z_best.ncd
Total running time of the script: (8 minutes 55.104 seconds)