AARDDVARK: Subionospheric VLF Transmitter Observations from Antarctica
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Description
AARDDVARK sensors measure the magnetic field in the Very Low Frequency radio range (~500 Hz-50 kHz) to probe the upper atmosphere. The dataset contains narrowband amplitude and phase measurements from powerful communications transmitters, recorded at a 0.2-second time resolution. This sensor at Arrival Heights, Antarctica, was installed in December 2008 as part of the AARDDVARK network led by the University of Otago and the British Antarctic Survey.
Use Cases
Modeling ionospheric disturbances based on VLF signal amplitude and phase variations.
Analyzing energy coupling between the atmosphere and space based on ionization level changes from 30-85 km altitude.
Monitoring long-range subionospheric communication transmitter performance across hemispheres.
Studying space weather effects on radio wave propagation in the polar regions.
Strengths
Data has a high temporal resolution of 0.2 seconds for amplitude and phase measurements.
Sensor is part of a wider international network (AARDDVARK) with 10 stations, providing potential for comparative analysis.
Measurements target a specific, scientifically relevant altitude range (~30-85 km) for studying atmospheric ionization.
Limitations
Column-level documentation is absent; field semantics must be inferred after download.
Row count is unknown, which may limit suitability assessment for large-scale machine learning.
Last update date is unknown; freshness unverified.
Provenance
Source
University of Otago and British Antarctic Survey via the AARDDVARK network.
Collection Method
Measurements from a VLF radio sensor installed at Arrival Heights, Antarctica, processing magnetic field data.
Time Range
Sensor installed December 2008; ongoing data collection implied.
Freshness
Data is sent to the University of Otago once daily, but the overall dataset's last update is unknown.
Geography
Primary location is Arrival Heights, Antarctica; sensors also log transmitters across northern and southern hemispheres over a wide longitude range.
License is unknown; users should verify terms before use.