AGSO Formats for Marine Seismic and Navigation Digital Data

AGSO digital seismic data formats adhere to standards from Barry et al. (1975). Trace header mnemonics are based on CogniSeis DISCO software and AGSO definitions. The data includes variations for unstacked data, static corrections, and optional entries like SHOT or SPN.

Use Cases

• Interpret seismic trace headers based on AGSO and DISCO mnemonics
• Relate vintage pre-1993 data to original field data using SPN or FFID
• Correct navigation data to the mid-point of source and first active channel
• Maintain field data polarity convention where compression waves are plotted negative
• Integrate bathymetry and geophysical data like magnetics and gravity corrected to mid-point

Strengths

• Format descriptions adhere to established 1975 geophysics standards
• Specific conventions for data polarity and shot point annotation are documented
• Handles variations for unstacked data and includes optional entries like SHOT

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• Description metadata is limited; actual data quality requires manual inspection after download

Provenance

Source

Australian Ocean Data Network

Time Range

Data released prior to 1993 uses SPN; from 1993 uses SHOT

Freshness

Last updated 2026-04-16 14:36:12.614473; freshness should be verified

Geography

Marine seismic data, likely from Australian regions