The north-eastern Browse Basin (Caswell Sub-basin) was surveyed by Geoscience Australia in October-November 2014 to assess CO2 storage potential. An Autonomous Underwater Vehicle collected 71 line km of high and low frequency sidescan sonar data using an Edgetech FS system. The survey was part of the National CO2 Infrastructure Plan and involved scientists from GA, NIWA, and Fugro Survey.
Use Cases
- Assessing seabed seal integrity for carbon storage based on sidescan sonar imagery.
- Identifying natural hydrocarbon seepage indicators from high-resolution sonar data.
- Mapping seabed geological features in water depths of 90-430 meters.
- Integrating AUV sonar data with broader shipboard bathymetry and backscatter surveys.
Strengths
- 71 line km of sidescan sonar data collected by an AUV.
- Survey conducted over a defined 455 km2 area with specific water depth ranges.
- Data collected using specified high (390-430 kHz) and low (98-111 kHz) frequency parameters.
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
- Geoscience Australia, Fugro Survey Pty Ltd, NIWA.
- Collection Method
- Data collected via an Autonomous Underwater Vehicle (AUV) equipped with an Edgetech FS sidescan sonar system.
- Time Range
- 9 October to 9 November 2014.
- Freshness
- Last updated 2026-04-16 15:27:09.107263; freshness should be verified.
- Geography
- Caswell Sub-basin, north-eastern Browse Basin.