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Location: Concorde Point, the south-easternmost point of Chuginadak Island, Cleveland volcano, Alaska
Installation Date: Pre-existing site, enhanced during AVERT project (September 2022)
Instrumentation:
- Tallysman VeraChoke 6100 GNSS antenna
- AlertGeomatics Resolute Polar receiver
- Polar mast monument (due to limited solid bedrock exposure)
Data Collection:
- Position data recorded at two rates: 30 s (standard) and 1 s (high rate)
- High-rate data only telemetered during events of specific interest to minimize bandwidth consumption
Network Role:
- Part of the permanent GNSS network at Cleveland volcano
- Helps clarify whether there is observable deformation prior to eruptions
- Prior to this network, potential deformation was below the spatial/temporal resolution of remote sensing methods
Site Characteristics:
- Located on the Islands of Four Mountains in the central Aleutian Arc
- “Open-vent” volcano with persistent gas plume
- Little-to-no evidence of pre-eruptive deformation historically
- Site equipped with radome to protect from elements
Data Access:
Additional Infrastructure:
- Co-located with 5-instrument infrasound array
- Co-located with broadband seismometer
- Co-located with webcam
- Part of AVO permanent monitoring network
