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Description
A 2023 bathymetry surface created from a contracted national reference survey in Gulf St Vincent, South Australia, for calibrating multibeam echosounders. The Australian Hydrographic Office acquired the data in September 2020 using Kongsberg EM 2040 and EA440 echosounders. Separate 1-meter resolution grids are provided for two surveyed sites in MSL, LAT, and Ellipsoid vertical datums, exported as 32-bit floating point GeoTIFFs.
Use Cases
Calibrate multibeam echosounder systems based on the high-resolution reference surfaces.
Analyze seafloor topography in Gulf St Vincent based on the 1-meter resolution bathymetric grids.
Compare vertical datums (MSL, LAT, Ellipsoid) for marine charting applications based on the provided separate grids.
Strengths
High-resolution 1-meter grid derived from Kongsberg EM 2040 multibeam echosounder data.
Provides data in three vertical datums (MSL, LAT, Ellipsoid) for two distinct survey sites.
Processed using Caris HIPS & SIPS, a standard hydrographic processing suite.
Limitations
Description metadata is limited; actual data quality requires manual inspection after download.
Row count is unknown, which may limit suitability assessment.
The dataset is explicitly not to be used for navigational purposes, restricting its primary application.
Provenance
Source
Australian Hydrographic Office via the Hydroscheme Industry Partnership Program.
Collection Method
Acquired using Kongsberg EM 2040 multibeam echosounder and Kongsberg EA440 singlebeam echosounder, processed with Caris HIPS & SIPS.