Summary
To support the USArray TA infrasound dataset, EarthScope DS developed two infrasound data products: the TA Infrasound Reference Event Database (TAIRED) and TA Infrasound Detections (TAID). These products are designed to provide researchers with insights and tools to begin working with this extensive and somewhat unique dataset.
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A query interface for TA Infrasound Event Database is available on SPUD
✓ ☁️ The TAID data files are also available from the EarthScope Data Archive.
Quicklinks
- TA Infrasound Reference Event Database (TAIRED) description
- Automated Event Location Using a Mesh of Arrays (AELUMA) description
- EarthScope Infrasound Event Database (IED, contains AELUMA and TAIRED events)
- TA Infrasound Detections (TAID):
Description
The Transportable Array (TA) component of the USArray/EarthScope project was a rolling array of 400 broadband seismic stations deployed on a nominal 70 km grid. Beginning in 2011, infrasound sensors were added to some existing TA sites and became a standard feature of all new installations. At any given time during TA operations, more than 400 sites were typically equipped with infrasound sensors, forming a large array that continuously sampled the wavefield of atmospheric acoustic sources. Two data products derived from these infrasound observations are:
- TAIRED — A user-supported, evolving infrasound event database designed as a reference repository where researchers could contribute new events, provide updated solutions for existing events, and access sample infrasound events for their research. The database was initially populated using observations from USArray infrasound data, event bulletins, and reports of meteorological phenomena, explosions, and rocket launches.
- TAID — An automated detection repository created by regularly scanning USArray Transportable Array broadband infrasound data (40 Hz BDF channel) to generate station-based weekly detection lists. These lists contain raw detections—without event association or categorization—that highlight time intervals potentially containing infrasound signals of interest.
Citations and DOIs
To cite the EarthScope DS Data Products effort:
- Trabant, C., A. R. Hutko, M. Bahavar, R. Karstens, T. Ahern, and R. Aster (2012), Data Products at the IRIS DMC: Stepping Stones for Research and Other Applications, Seismological Research Letters, 83(5), 846–854, https://doi.org/10.1785/0220120032.
To cite the EarthScope DS Infrasound TA Infrasound Data Products or reference use of its repositories:
- EarthScope DS (2012), Data Services Products: Infrasound TA Infrasound Data Products, https://doi.org/10.17611/DP/IS.1.
Credits
- Manochehr Bahavar, EarthScope DS
- The infrasound research community for their contributions and product review
Timeline
- 2012-09-15
- Released the TA Infrasound Reference Event Database (TAIRED)
- 2012-11-20
- Released the TA Infrasound Detections (TAID)
- 2025-05-13
- Cloud-ready
