Crowdy Head Offshore Bathymetry and Backscatter Survey, NSW 2021

A 2021 survey acquired by the NSW government from April 20 to April 30, 2021, onboard the Research Vessel Bombora. The dataset contains 32-bit floating point geotiff files of bathymetry and backscatter in 5-meter resolution for the Crowdy Head Offshore area, derived from processed multibeam sonar data. It was created as part of the SeabedNSW program to provide a baseline dataset and map seabed type distribution.

Use Cases

• Modeling coastal erosion and sediment transport based on high-resolution bathymetry.
• Mapping benthic habitats and seabed types based on backscatter data.
• Creating baseline maps for marine spatial planning and conservation based on the 5m resolution geotiffs.
• Analyzing seafloor topography for geological research based on the multibeam survey data.

Strengths

• Data has a high spatial resolution of 5 meters.
• Survey was conducted over a defined period from April 20 to April 30, 2021.
• Processing details and standard operating procedures are documented via a provided URL.

Limitations

• Row count and dataset size are unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• The description explicitly states the data is 'Not to be used for navigational purposes', limiting its application.

Provenance

Source

NSW government (Department of Planning and Environment – DPE)

Collection Method

Acquired using DPE’s R2Sonic 2022 multibeam sonar onboard the Research Vessel Bombora.

Time Range

2021-04-20 to 2021-04-30

Freshness

Last updated 2026-06-04 07:47:08.125713; freshness should be verified.

Geography

Crowdy Head Offshore, New South Wales, Australia