Northern San Andreas Fault Seafloor Mapping and AUV Imagery

A geophysical survey of the Northern San Andreas Fault (NSAF) collected high-resolution multi-beam sonar, seismic reflection, and autonomous underwater vehicle (AUV) imagery data. The project was conducted by a collaborative team of geologists and biologists, with data archived at the NOAA Northwest Fisheries Science Center and Oregon State University. The exploration was framed as a case study for green oceanographic research around the centennial of the 1906 earthquake.

Use Cases

• Generate 3D visualizations of the fault system based on combined multi-beam sonar and seismic reflection data.
• Analyze seafloor biological communities based on digital photographs and photomosaics from AUV surveys.
• Assess marine habitats at geo-referenced spatial scales from kilometers to meters.
• Support tectonic studies of the Northern San Andreas Fault nature based on high-resolution mapping.

Strengths

• Includes the first comprehensive high-resolution multi-beam sonar and seismic reflection survey of the NSAF.
• Provides an unprecedented high-resolution 3D visualization of the fault system when data types are combined.
• Data is archived at two authoritative institutions: NOAA NWFSC and Oregon State University.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset size are unknown, which may limit suitability assessment.
• Primary file format is PDF, which may not be directly machine-readable for analysis.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

High-resolution multi-beam sonar, seismic reflection surveys, and digital photography/photomosaics collected by a hovering autonomous underwater vehicle (AUV).

Time Range

Survey conducted around the centennial of the 1906 earthquake; specific collection dates are not provided.

Freshness

Last updated 2026-03 14 22:53:51.665689; freshness should be verified.

Geography

Northern San Andreas Fault and the California Current Ecosystem.