Antarctic Geomagnetic Field Measurements at 4 Hz Since 2001

Measurements of geomagnetic field variations in the ULF frequency band (1 mHz - 1 Hz) are made by a triaxial search-coil magnetometer at Terra Nova Bay, Antarctica. The data set originates from a renewed instrumentation installed during the 2001/2002 and 2002/2003 Antarctic campaigns, providing continuous recording at a 4 Hz sampling rate with GPS timing. The dataset was last updated in November 2003.

Use Cases

• Analyze magnetospheric-ionospheric coupling dynamics based on continuous ULF band measurements.
• Study space weather effects in polar regions based on high-sensitivity magnetic sensor data.
• Model geomagnetic field variations based on time-series data with GPS-synchronized timing.
• Investigate seasonal changes in ULF activity based on data recorded through austral winters.

Strengths

• Continuous recording at a 4 Hz sampling rate enables detailed time-series analysis.
• High-sensitivity sensors (2-3 mV/nT/mHz) in the 1 mHz - 100 mHz band capture subtle geomagnetic variations.
• GPS timing provides precise synchronization for the measurements.

Limitations

• Last updated 2003-11-30 23:59:59.999000; freshness should be verified.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

SCIOPS

Collection Method

Measurements made by a triaxial search-coil magnetometer with a renewed acquisition system.

Time Range

Campaigns from 2001/2002 and 2002/2003, with continuous recording since installation.

Freshness

Last updated 2003-11-30 23:59:59.999000.

Geography

Terra Nova Bay, Antarctica.