Depth Areas on the Australian Continental Shelf Derived from AHS S57 Files

Depth area polygons for the Australian continental shelf and Lord Howe Island shelf were aggregated from the Australian Hydrographic Service's 1 degree S57 file series. The dataset, hosted by the Australian Ocean Data Network, was last updated on 2026-07-13. It depicts depth areas, likely including the 200-meter contour around Lord Howe Island.

Use Cases

• Map seafloor depth contours based on aggregated hydrographic survey data.
• Analyze shelf morphology and slope based on dissolved depth area boundaries.
• Support marine spatial planning and habitat modeling based on bathymetric features.

Strengths

• Derived from the authoritative Australian Hydrographic Service's S57 file series.
• Covers the Australian continental shelf and the Lord Howe Island shelf, a specific geographic region.
• Data was last updated on 2026-07-13, suggesting planned maintenance.

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.
• The description metadata is limited; actual data quality and completeness require manual inspection.

Provenance

Source

Australian Hydrographic Service (AHS)

Collection Method

Derived by aggregating and dissolving boundaries from the 1 degree S57 file series.

Freshness

Last updated 2026-07-13 20:50:38.332895; freshness should be verified.

Geography

Australian continental shelf and Lord Howe Island shelf