AHO Reference Surfaces: Bathymetry Survey for Echosounder Calibration in Cairns

Cairns, Queensland bathymetry data acquired for the Australian Hydrographic Office on 27 May 2020. This surface was created from a contracted national reference survey for calibrating multibeam echosounders, processed using Caris HIPS & SIPS. The dataset includes separate 0.5m resolution grids for three surveyed sites in MSL, LAT, and Ellipsoid vertical datums, exported as a 32-bit floating point GeoTIFF.

Use Cases

• Calibrating multibeam echosounder systems based on the high-resolution reference surfaces.
• Analyzing seafloor topography in Cairns, Queensland based on the 0.5m resolution bathymetry grids.
• Comparing vertical datums (MSL, LAT, Ellipsoid) for marine surveying applications based on the separate provided grids.

Strengths

• High-resolution 0.5m grid data for precise bathymetric modeling.
• Provides data in three vertical datums (MSL, LAT, Ellipsoid) for flexibility in analysis.
• Acquired using specific, modern equipment (R2Sonic 2022) and processed with industry-standard software (Caris HIPS & SIPS).

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

Australian Hydrographic Office, Geoscience Australia Data

Collection Method

Survey acquired using R2Sonic 2022 multibeam echosounder and processed with Caris HIPS & SIPS software.

Time Range

Survey acquired 27 May 2020.

Freshness

Last updated 2026-04-20 03:53:04.386620; freshness should be verified.

Geography

Cairns, Queensland, Australia (three specific surveyed sites).