NDBC Buoy Data Request (of any type)

The NDBC keeps a 40-day recent rolling file for each buoy. This examples shows how to access the other types of data available for a buoy.

from siphon.simplewebservice.ndbc import NDBC

Request the types of data available from a given buoy.

{'txt': 'standard meteorological data', 'spec': 'spectral wave summaries', 'data_spec': 'raw spectral wave data', 'swdir': 'spectral wave data (alpha1)', 'swdir2': 'spectral wave data (alpha2)', 'swr1': 'spectral wave data (r1)', 'swr2': 'spectral wave data (r2)', 'supl': 'supplemental measurements data'}

Get a pandas data frame of all of the observations, meteorological data is the default observation set to query.

df = NDBC.realtime_observations('42012', data_type='supl')
df.head()
hourly_low_pressure hourly_low_pressure_time hourly_high_wind hourly_high_wind_direction hourly_high_wind_time time
0 1018.8 2025-06-30 18:54:00+00:00 6.0 290.0 2025-06-30 18:57:00+00:00 2025-06-30 19:00:00+00:00
1 1018.8 2025-06-30 18:45:00+00:00 5.0 290.0 2025-06-30 18:46:00+00:00 2025-06-30 18:50:00+00:00
2 1018.8 2025-06-30 18:38:00+00:00 6.0 300.0 2025-06-30 18:31:00+00:00 2025-06-30 18:40:00+00:00
3 1018.8 2025-06-30 18:22:00+00:00 6.0 310.0 2025-06-30 18:24:00+00:00 2025-06-30 18:30:00+00:00
4 1018.7 2025-06-30 18:13:00+00:00 7.0 320.0 2025-06-30 18:18:00+00:00 2025-06-30 18:20:00+00:00


Total running time of the script: (0 minutes 1.772 seconds)

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