Australian Bathymetric Contours at Multiple Depth Intervals from 2024 Grid

Derived bathymetric isobaths from Geoscience Australia's 250m resolution 2024 AusBathyTopo grid, covering the Australian Exclusive Economic Zone from 92°E to 172°E and 8°S to 60°S. Four contour products are provided, including full-coverage 100m intervals and high-resolution 1m and 5m intervals for shallow regions up to 200m depth. The data is intended for marine spatial planning and mapping visualization but is not suitable for high-precision engineering applications due to smoothing procedures.

Use Cases

• Marine spatial planning based on depth contour lines clipped to the Australian Exclusive Economic Zone.
• Mapping visualization based on Web Mapping Service (WMS) layers simplified with a 10-meter tolerance.
• Broad-scale analysis of continental shelf and oceanic features based on high-resolution 1m and 5m interval contours for depths 0–200m.
• Creating multi-resolution bathymetric maps based on the composite product with varying intervals from 2m to 100m.

Strengths

• Provides four distinct contour products, including a composite with multi-resolution intervals from 2m to 100m.
• Derived from a high-resolution 250-metre grid covering a vast area from 92°E to 172°E and 8°S to 60°S.
• Includes high-resolution 1m interval contours specifically for shallow regions between 0–200m depth.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• The contours are not suitable for engineering or high-precision applications due to applied smoothing procedures.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

Geoscience Australia (GA) AusBathyTopo 250m 2024 gridded bathymetric dataset.

Collection Method

Derived bathymetric isobaths (depth contour lines) generated from the source grid and clipped to the Australian EEZ.

Freshness

Last updated 2026-07-22 00:59:01.041131; freshness should be verified.

Geography

Australian Exclusive Economic Zone (EEZ), covering ocean and land areas from 92°E to 172°E and 8°S to 60°S.