Howard Channel Bathymetry: 30m Grid from 2023 Multibeam Survey

From 9 August to 13 September 2023, a bathymetric survey was conducted in the Howard Channel for the Australian Hydrographic Office. The data was acquired using a Kongsberg EM2040C multibeam sonar and processed with CARIS HIPS and SIPS and QIMERA software. The final product is a 30-meter resolution, 32-bit floating point GeoTIFF grid of the seafloor topography.

Use Cases

• Seafloor change analysis based on high-resolution bathymetric grids
• Habitat mapping for marine ecosystems using depth and terrain data
• Validation of hydrodynamic models with accurate seafloor topography
• Geological feature identification from processed multibeam sonar data

Strengths

• Specific temporal coverage from 9 Aug 2023 to 13 Sep 2023
• High-resolution 30m grid derived from Kongsberg EM2040C multibeam sonar
• Processed with industry-standard software (CARIS HIPS and SIPS, QIMERA)

Limitations

• Metadata is incomplete: row count, size, license, and author are null
• Dataset is explicitly not for navigational purposes, limiting operational use
• Conflicting 'last updated' dates (2026-06-04, 2026-05-05, 2026-04-10) suggest inconsistent metadata maintenance

Provenance

Source

Australian Hydrographic Office, contracted to EGS Australia under the Hydroscheme Industry Partnership Program

Collection Method

Acquired via multibeam sonar survey and processed with CARIS HIPS and SIPS and QIMERA software

Time Range

9 Aug 2023 – 13 Sep 2023

Freshness

Last updated metadata date is 2026-06-04 06:40:56.620094

Geography

Howard Channel, Australia