Backscatter Grid of Lord Howe Island Shelf from 2008 Marine Survey

Geoscience Australia produced a backscatter grid of the Lord Howe Island shelf from a 2008 marine survey. The survey mapped seabed bathymetry and characterized benthic environments using sediment sampling, rock coring, underwater video, and oceanographic measurements. The final grid covers an area of 1034 square kilometers.

Use Cases

• Map seabed hardness and sediment types based on backscatter intensity.
• Characterize benthic habitats by correlating backscatter data with video observations and sediment samples.
• Study shelf stratigraphy by integrating backscatter with sub-bottom profile data.
• Model oceanographic processes using data from the colocated 6-month mooring deployment.

Strengths

• Grid covers a defined area of 1034 square kilometers.
• Data is colocated with multiple other survey methods including video, coring, and sediment sampling.
• Integrates bathymetric data from multiple pre-existing sources.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and specific file size are unknown, which may limit suitability assessment.
• Data may reflect geographic and temporal bias inherent to the specific 2007-2008 survey periods.

Provenance

Source

Geoscience Australia Data

Collection Method

Processed from EM300 backscatter data collected during the SS062008 marine survey using the CMST-GA MB Process.

Time Range

Primary survey in 2008, with mooring data from a 6-month deployment starting in 2007.

Freshness

Last updated 2026-04-30 14:05:53.787145; freshness should be verified.

Geography

Lord Howe Island shelf, New South Wales, Australia.