SI 1020 Banks Strait, Bass Strait, (HIPP) Bathymetry Acquisition (20210021S)

Brief description

The Banks Strait bathymetry survey was acquired for the Australian Hydrographic Office (AHO) onboard the M/V Offshore Solution and SMB Indigo during the period 20 January – 17 July 2021. The survey was contracted as part of the HydroScheme Industry Partnership Program (HIPP). The survey area encompasses Banks Strait located between the Northern Tasmanian coast and the Furneaux Group (including Cape Barren, Clarke and Flinders Islands). Bathymetry data was acquired using a Kongsberg EM2040-04 MKII and EM 2040P multibeam sonar and processed using QPS Qimera V2.0.1. The dataset was then exported to GeoTIFF using CARIS HIPS and SIPS software. This dataset contains a 30m-resolution 32-bit floating point GeoTIFF file. This dataset is not to be used for navigational purposes.

Lineage

Maintenance and Update Frequency: asNeeded

Statement: While AusSeabed aims to publish data based on the requirements stated in the AusSeabed multibeam guidelines (version 1, https://australian-multibeam-guidelines.github.io), we will also publish interim products (version 0) that are currently available, but have not yet been standardised (version 1). Users should be aware that V1 products will always supersede V0 products. This dataset was produced using CARIS HIPS & SIPS and the AusSeabed-recommended processing methodology as follows.

This surface is a 30 metre Shoal Depth TRue Position (SDTP) derived from International Hydrographic Organisation Order (IHO) 1A, 1 and 2 metre Combined Uncertainty and Bathymetry Estimator (CUBE) surfaces supplied to the Australian Hydrographic Office, with depth, position, density and uncertainty preserved from the original surface. Full resolution surfaces available from AHO on request under restricted licence.

Survey metadata:
The multibeam bathymetry was acquired by the following survey:
- Survey Name: Banks Strait (SI 1020/20210021S)
- Vessel Name: MV Offshore Solution and SMB Indigo
- Institution: Australian Hydrographic Office
- Country: Australia
- Operator: N/A
- Multibeam system: Kongsberg EM2040C
- Year of installation: N/A
- Nominal sonar frequency: 300-400 kHz
- Number of heads: N/A
- Number of soundings: N/A
- Beamwidth along track: N/A
- Beamwidth across track: N/A
- Pulse length: N/A
- Selectable depth range: N/A
- Vessel speed: N/A
- Start Date: 20/01/2021
- End Date: 17/07/2021
- Start Port: N/A
- End Port: N/A
- Grid resolution: 30m
- Number of grids: 1
- Use Limitation: This dataset is not to be used for navigational purposes. - Vertical Datum: MSL depth (EPSG:5715)
- Horizontal Datum: WGS 84 (EPSG:4326)

Processing methodology:
This dataset was produced using QPS Qimera V2.0.1 and exported to GeoTIFF using CARIS HIPS & SIPS as follows. 1. Processed using QPS Qimera V2.0.1 in accordance with HIPP SOR 2020v 1.2 using CUBE techniques, 1m and 2m CUBE surfaces generated as the final L3 dataset.
2. Data was provided to Geoscience Australia for publication.
3. The final processed grid was exported as a 32-bit floating point Geotiff at 30 m resolution, referenced to: MSL depth (EPSG:5715), WGS 84 (EPSG:4326).

AVAILABILITY Copies of this publication can be obtained from: Commonwealth of Australia (Geoscience Australia) clientservices@ga.gov.au Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378, Canberra, ACT, 2601, Australia Call 1800 800 173,02 6249 9960

DATA QUALITY This dataset has been subject to independent post-production validation and testing. Tests have been performed for data completeness, correct spatial representation, attribute accuracy, logical consistency, metadata completeness and correctness, and where appropriate for compliance with Geoscience Australia's data dictionaries. Errors found in this dataset should be reported to: Corporate Data Manager Geoscience Australia GPO Box 378 Canberra ACT 2601, Australia Email: Sales@ga.gov.au Reported Errors will be rectified in subsequent data releases, if any.

DISCLAIMER This material is copyright Commonwealth of Australia. Other than the Coat of Arms and departmental logo, you may reproduce, distribute, adapt and otherwise freely deal with this material for all purposes (retaining this notice) without charge on the condition that you include the acknowledgement "copyright Commonwealth of Australia (year of publication) and (title of the source)" on all uses. You may not sub-licence this material or use it in a misleading context. While every effort has been made to ensure accuracy, the Commonwealth does not accept any responsibility for the accuracy, completeness or currency of this material, and will not be liable for any loss or damage arising from use of, or reliance on, the material. Nothing in this licence affects the operation of any applicable exception or limitation contained in the Copyright Act 1968. This dataset is not to be used for any navigation purposes. Further information may be obtained by contacting copyright@ga.gov.au

COPYRIGHT (C) Commonwealth of Australia (Geoscience Australia) 2022.

Notes

Purpose
Bathymetry Survey