Crowdy Head Offshore Seabed Bathymetry And Backscatter Survey 2021

A 2021 multibeam sonar survey captured 5-meter resolution bathymetry and backscatter data for the Crowdy Head Offshore area in New South Wales. The NSW Department of Planning and Environment conducted the survey from April 20 to April 30, 2021, using the R/V Bombora. Data is provided as 32-bit floating point GeoTIFF files.

Use Cases

• Map seabed type spatial distribution using 5m resolution backscatter GeoTIFF data.
• Analyze seafloor elevation and morphology changes with 5m resolution bathymetry GeoTIFF layers.
• Model underwater habitat suitability by correlating bathymetry depth data with backscatter intensity values.
• Establish a baseline seabed dataset for future comparative environmental monitoring in the Tasman Sea region.

Strengths

• Data provides 5-meter spatial resolution for both bathymetry and backscatter.
• Survey conducted over a defined 11-day period in April 2021, ensuring temporal consistency.
• Processing followed documented standard operating procedures for multibeam surveying.

Limitations

• Dataset spatial coverage is limited to the specific Crowdy Head Offshore, NSW study area.
• Sample size and total area covered in square kilometers are not specified.
• Data is not intended for navigational purposes, limiting certain maritime applications.

Provenance

Source

NSW Department of Planning and Environment (DPE), via the Australian Ocean Data Network.

Collection Method

Acquired using an R2Sonic 2022 multibeam sonar onboard the R/V Bombora, processed with Hypack, Qimera, and FMGT software.

Time Range

Survey period: 20/APR/2021 - 30/APR/2021.

Freshness

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Geography

Crowdy Head Offshore, New South Wales, Australia, in the Tasman Sea.