The Stanford VLF Group collects data from ground stations located across the globe. There are two principle types of data collected, broadband and narrowband. Broadband data is full waveform data sampled at 100 kHz (frequency range of 300 Hz to 40 kHz), while narrowband data refers to the demodulated amplitude and phase of narrowband VLF transmitters.
Use Cases
- Analyze full waveform electromagnetic signals based on broadband data sampled at 100 kHz
- Study amplitude and phase variations of specific VLF transmitters based on narrowband demodulated data
- Compare signal characteristics from orthogonal antennas oriented North/South and East/West
- Investigate global electromagnetic phenomena based on data from ground stations across the globe
Strengths
- Data is collected from ground stations located across the globe
- Broadband data is sampled at 100 kHz, covering a frequency range of 300 Hz to 40 kHz
- Data is typically collected on two orthogonal antennas oriented in the North/South and East/West directions
Limitations
- Column-level documentation is absent; field semantics must be inferred after download
- Row count is unknown, which may limit suitability assessment
- Last update date is unknown; freshness unverified
Provenance
- Source
- Stanford VLF Group
- Collection Method
- Collection from ground stations located across the globe
- Geography
- Global