Data

SSCN SEGMENT 2-B Great Australian Bight Marine Park Bathymetry Acquisition (20240013S)

Geoscience Australia
EGS Survey Pty Ltd
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://pid.geoscience.gov.au/dataset/ga/150168&rft.title=SSCN SEGMENT 2-B Great Australian Bight Marine Park Bathymetry Acquisition (20240013S)&rft.identifier=https://pid.geoscience.gov.au/dataset/ga/150168&rft.publisher=Commonwealth of Australia (Geoscience Australia)&rft.description=This dataset is part of a broader survey carried out by EGS onboard the survey vessel RV Bold Explorer (RV BE) during the SUBCO Subsea Cable Network (SSCN) cable route survey. The area is confined to the data within the Great Australian Bight Marine Park. The Survey team and client representative joined the RV Bold Explorer on 17th April 2024 at Fremantle Port, Australia. Following the embarkation of the survey team, equipment testing and commissioning was carried out. Calibration and verification of the DGPS positioning system and survey gyros onboard RV BE were performed while the vessel was alongside at Fremantle Port, Australia between 17th April and 18th April 2024. Prior to departure, tow sensors and hull-mounted sensors were wet tested. All systems were found to be operational. The RV Bold Explorer departed Fremantle Port, Australia and transited to the first site on 19th April 2024. The offshore calibration of shallow water multibeam echosounder (MBES) and USBL were performed on 19th April 2024 while the calibration of deep water MBES was carried out on 20th April 2024.The SSCN Segment 2-B survey comprised an investigation of bathymetry, seabed features and shallow geology along the proposed route. A subsequent geotechnical sampling programme was also executed.This dataset is not to be used for navigational purposes.Maintenance and Update Frequency: asNeededStatement: 1. Caris project was created with existed vessel configuration file with dimensional survey result in contractprojection in Mercator.2. Raw MBES data files (EM124 kmall) was imported to the project and reference to ITRF2020.3. Seapath with vRTCM differential correction from Veripos as primary navigation and attitude correctionsource.4. NO tidal correction have been applied in >1000mWD.5. Base surface was created by Swath angle as reference for noise cleaning by filtering.6. Further manual cleaning in details afterwards.7. Geotiff raster image and ASCII xyz files were finalized in 50m or 100m grid size depends on different depthrange in WGS84 geographic projection.&rft.creator=EGS Survey Pty Ltd &rft.date=2024&rft.coverage=westlimit=131.25; southlimit=-36.71; eastlimit=131.50; northlimit=-36.50; projection=WGS 84 / geographic 2D (EPSG: 4326)&rft.coverage=westlimit=131.25; southlimit=-36.71; eastlimit=131.50; northlimit=-36.50; projection=WGS 84 / geographic 2D (EPSG: 4326)&rft.coverage=uplimit=-5587.4; downlimit=-5599; projection=MSL depth / vertical (EPSG: 5715)&rft.coverage=uplimit=-5587.4; downlimit=-5599; projection=MSL depth / vertical (EPSG: 5715)&rft_rights=Creative Commons Attribution 4.0 International Licence https://creativecommons.org/licenses/by/4.0/&rft_rights=© Commonwealth of Australia (Director of National Parks (Parks Australia))&rft_rights=Australian Government Security Classification System https://www.protectivesecurity.gov.au/Pages/default.aspx&rft_subject=geoscientificInformation&rft_subject=AusSeabed&rft_subject=marine&rft_subject=bathymetry&rft_subject=Oceans&rft_subject=HVC_144641&rft_subject=EARTH SCIENCES&rft_subject=Multibeam&rft_subject=Published_External&rft.type=dataset&rft.language=English Access the data
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Licence & Rights:

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CC-BY

Creative Commons Attribution 4.0 International Licence
https://creativecommons.org/licenses/by/4.0/

© Commonwealth of Australia (Director of National Parks (Parks Australia))

Australian Government Security Classification System
https://www.protectivesecurity.gov.au/Pages/default.aspx

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Full description

This dataset is part of a broader survey carried out by EGS onboard the survey vessel RV Bold Explorer (RV BE) during the SUBCO Subsea Cable Network (SSCN) cable route survey.
The area is confined to the data within the Great Australian Bight Marine Park. The Survey team and client representative joined the RV Bold Explorer on 17th April 2024 at Fremantle Port, Australia. Following the embarkation of the survey team, equipment testing and commissioning was carried out. Calibration and verification of the DGPS positioning system and survey gyros onboard RV BE were performed while the vessel was alongside at Fremantle Port, Australia between 17th April and 18th April 2024.
Prior to departure, tow sensors and hull-mounted sensors were wet tested. All systems were found to be operational. The RV Bold Explorer departed Fremantle Port, Australia and transited to the first site on 19th April 2024. The offshore calibration of shallow water multibeam echosounder (MBES) and USBL were performed on 19th April 2024 while the calibration of deep water MBES was carried out on 20th April 2024.
The SSCN Segment 2-B survey comprised an investigation of bathymetry, seabed features and shallow geology along the proposed route. A subsequent geotechnical sampling programme was also executed.
This dataset is not to be used for navigational purposes.

Lineage

Maintenance and Update Frequency: asNeeded
Statement:
1. Caris project was created with existed vessel configuration file with dimensional survey result in contract
projection in Mercator.
2. Raw MBES data files (EM124 kmall) was imported to the project and reference to ITRF2020.
3. Seapath with vRTCM differential correction from Veripos as primary navigation and attitude correction
source.
4. NO tidal correction have been applied in >1000mWD.
5. Base surface was created by Swath angle as reference for noise cleaning by filtering.
6. Further manual cleaning in details afterwards.
7. Geotiff raster image and ASCII xyz files were finalized in 50m or 100m grid size depends on different depth
range in WGS84 geographic projection.

Notes

Purpose
Provided to Geoscience Australia as part of an agreement between Survey Companies and Parks Australia and to increase the Bathymetric data coverage of Australia. EGS was contracted by OMS Group to supply topographic, hydrographic, geophysical and geotechnical survey services to provide data to enable OMS Group to carry out engineering, construction and subsequent maintenance of the SSCN cable system. The primary objective of the cable route survey activities was to identify hazards and thereby allow OMS Group to engineer a secure, technically and economically viable route for the system. This enables exact cable lengths, cable design and installation parameters to be defined to minimise problems over the designated life of the system.

Created: 02 06 2024

Modified: 26 02 2025

Data time period: 2024-04-17 to 2024-05-04

This dataset is part of a larger collection

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131.5,-36.5 131.5,-36.71 131.25,-36.71 131.25,-36.5 131.5,-36.5

131.375,-36.605

text: westlimit=131.25; southlimit=-36.71; eastlimit=131.50; northlimit=-36.50; projection=WGS 84 / geographic 2D (EPSG: 4326)

text: uplimit=-5587.4; downlimit=-5599; projection=MSL depth / vertical (EPSG: 5715)

Subjects
AusSeabed | EARTH SCIENCES | HVC_144641 | Multibeam | Oceans | Published_External | bathymetry | geoscientificInformation | marine |

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Other Information
Great Australian Bight Marine Park Bathymetry 2024 100m (zip) [66 KB]

uri : https://files.ausseabed.gov.au/survey/Great%20Australian%20Bight%20Marine%20Park%20Bathymetry%202024%20100m.zip

Identifiers
  • DOI : 10.26186/150168
  • Local : pid.geoscience.gov.au/dataset/ga/150168
  • global : c386364f-2470-4827-bea3-2148d9c5ab00