Data

Wallaby-Zenith Fracture Zone Bathymetry Acquisition (20210023S)

Geoscience Australia

Bond, T. ; Niyazi, Y. ; Jamieson, A. ; The University of Western Australia

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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/148851&rft.title=Wallaby-Zenith Fracture Zone Bathymetry Acquisition (20210023S)&rft.identifier=https://pid.geoscience.gov.au/dataset/ga/148851&rft.publisher=Commonwealth of Australia (Geoscience Australia)&rft.description=The Wallaby-Zenith Fracture Zone Survey was acquired by the Minderoo-UWA Deep-Sea Research Centre at the University of Western Australia during the expedition “Indomitable” onboard the RV DSSV Pressure Drop from the 8th March to the 2nd June 2021 led by Dr. Alan Jamieson, using a Kongsberg EM124. The expedition was funded by a joint mission between Caladan Oceanic LLC (US) and the Minderoo Foundation (Australia). This dataset contains a 64m-resolution and a 128mm-resolution 32-bit floating point GeoTIFF files of the bathymetry in the study area, derived from the processed EM124 bathymetry data, using QPS Qimera v.2.5 software. This dataset is not to be used for navigational purposes. This dataset is published with the permission of the CEO, Geoscience Australia.Maintenance and Update Frequency: asNeededStatement: AusSeabed follows the recommended processing methodology as prescribed by the AusSeabed Multibeam Guidelines. Please note that certain products are subject to routine update (e.g. resolution, coverage, temporal variation, guidelines/best practice). The client is advised to refer to the latest version of all documents and products for the mostup-to-date material. For eCat records the version is expressed in the record title whilst products incorporate date of production as per AusSeabed’s file naming convention.Survey metadata:The multibeam bathymetry was acquired by the following survey:- Survey Name: Wallaby-Zenith Fracture Zone- Vessel Name: RV DSSV Pressure Drop- Institution: The University of Western Australia- Country: Australia- Operator: Caladan Oceanic, LLC- Multibeam system: EM124- Year of installation: 2019- Nominal sonar frequency: 12 kHz- Number of heads: 1- Number of soundings: 1600- Beamwidth along track: 0.5 degree- Beamwidth across track: 1 degree- Pulse length: variable- Selectable depth range: variable- Vessel speed: Unknown- Start Date: 08/03/2021- End Date: 02/06/2021- Start Port: Dampier- End Port: Fremantle- Grid resolution: 64m, 128m- Number of grids: 2- Use Limitation: This dataset is not to be used for navigational purposes.- This dataset is published with the permission of the CEO, Geoscience Australia- Vertical Datum: EGM2008- Horizontal Datum: WGS84 (EPSG:4326)Processing methodology:The bathymetric dataset was processed using QPS Qimera v2.5 as follow:1. QPD generation2. Raytracing with earest in distance withing time3. Tide correction4. TPU application5. Data cleaning6. QC7. Surface Processing 8. Cube surface generation9. Surface finalisation10. Export surface as a 32-bit floating Geotiff, referenced to EGM2008, WGS 84 (EPSG:4326).11. GSF ExportDATA QUALITYThis 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 ManagerGeoscience AustraliaGPO Box 378Canberra ACT 2601, AustraliaEmail: Sales@ga.gov.auReported Errors will be rectified in subsequent data releases, if any.&rft.creator=Bond, T. &rft.creator=Niyazi, Y. &rft.creator=Jamieson, A. &rft.creator=The University of Western Australia &rft.date=2023&rft.coverage=westlimit=101.00; southlimit=-30.00; eastlimit=115.00; northlimit=-19.00; projection=WGS 84 / geographic 2D (EPSG: 4326)&rft.coverage=westlimit=101.00; southlimit=-30.00; eastlimit=115.00; northlimit=-19.00; projection=WGS 84 / geographic 2D (EPSG: 4326)&rft.coverage=uplimit=-6697; downlimit=-907; projection=EGM2008 height / vertical (EPSG: 3855)&rft.coverage=uplimit=-6697; downlimit=-907; projection=EGM2008 height / vertical (EPSG: 3855)&rft_rights= https://creativecommons.org/licenses/by/4.0/&rft_rights=Creative Commons Attribution 4.0 International Licence&rft_rights=CC-BY&rft_rights=4.0&rft_rights=Any&rft_rights=Any&rft_rights=© The University of Western Australia 2023&rft_rights=Australian Government Security Classification System&rft_rights=https://www.protectivesecurity.gov.au/Pages/default.aspx&rft_rights=WWW:LINK-1.0-http--link&rft_rights=Australian Government Security Classification System&rft_rights=Creative Commons Attribution 4.0 International Licence http://creativecommons.org/licenses/by/4.0&rft_subject=geoscientificInformation&rft_subject=bathymetry&rft_subject=multibeam&rft_subject=bathymetric grids&rft_subject=AusSeabed&rft_subject=HVC_144641&rft_subject=Oceans&rft_subject=EARTH SCIENCES&rft_subject=Earth Science | Oceans | Bathymetry/Seafloor Topography | Bathymetry&rft_subject=Published_External&rft.type=dataset&rft.language=English Access the data

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Licence & Rights:

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https://creativecommons.org/licenses/by/4.0/

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

Creative Commons Attribution 4.0 International Licence

CC-BY

4.0

Any

Australian Government Security Classification System

https://www.protectivesecurity.gov.au/Pages/default.aspx

WWW:LINK-1.0-http--link

Australian Government Security Classification System

Access:

Open

Brief description

The Wallaby-Zenith Fracture Zone Survey was acquired by the Minderoo-UWA Deep-Sea Research Centre at the University of Western Australia during the expedition “Indomitable” onboard the RV DSSV Pressure Drop from the 8th March to the 2nd June 2021 led by Dr. Alan Jamieson, using a Kongsberg EM124. The expedition was funded by a joint mission between Caladan Oceanic LLC (US) and the Minderoo Foundation (Australia). This dataset contains a 64m-resolution and a 128mm-resolution 32-bit floating point GeoTIFF files of the bathymetry in the study area, derived from the processed EM124 bathymetry data, using QPS Qimera v.2.5 software. This dataset is not to be used for navigational purposes. This dataset is published with the permission of the CEO, Geoscience Australia.

Lineage

Maintenance and Update Frequency: asNeeded

Statement:

AusSeabed follows the recommended processing methodology as prescribed by the AusSeabed Multibeam Guidelines. Please note that certain products are subject to routine update (e.g. resolution, coverage, temporal variation, guidelines/best practice). The client is advised to refer to the latest version of all documents and products for the
mostup-to-date material. For eCat records the version is expressed in the record title whilst products incorporate date of production as per AusSeabed’s file naming convention.

Survey metadata:

The multibeam bathymetry was acquired by the following survey:

- Survey Name: Wallaby-Zenith Fracture Zone

- Vessel Name: RV DSSV Pressure Drop

- Institution: The University of Western Australia

- Country: Australia

- Operator: Caladan Oceanic, LLC

- Multibeam system: EM124

- Year of installation: 2019

- Nominal sonar frequency: 12 kHz

- Number of heads: 1

- Number of soundings: 1600

- Beamwidth along track: 0.5 degree

- Beamwidth across track: 1 degree

- Pulse length: variable

- Selectable depth range: variable

- Vessel speed: Unknown

- Start Date: 08/03/2021

- End Date: 02/06/2021

- Start Port: Dampier

- End Port: Fremantle

- Grid resolution: 64m, 128m

- Number of grids: 2

- Use Limitation: This dataset is not to be used for navigational purposes.

- This dataset is published with the permission of the CEO, Geoscience Australia

- Vertical Datum: EGM2008

- Horizontal Datum: WGS84 (EPSG:4326)

Processing methodology:

The bathymetric dataset was processed using QPS Qimera v2.5 as follow:

1. QPD generation

2. Raytracing with earest in distance withing time

3. Tide correction

4. TPU application

5. Data cleaning

6. QC

7. Surface Processing

8. Cube surface generation

9. Surface finalisation

10. Export surface as a 32-bit floating Geotiff, referenced to EGM2008, WGS 84 (EPSG:4326).

11. GSF Export

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.

Notes

Purpose
Acquiring bathymetry dataset

Issued: 14 12 2023

Data time period: 2021-03-08 to 2021-06-02

This dataset is part of a larger collection

Click to explore relationships graph

text: westlimit=101.00; southlimit=-30.00; eastlimit=115.00; northlimit=-19.00; projection=WGS 84 / geographic 2D (EPSG: 4326)

text: uplimit=-6697; downlimit=-907; projection=EGM2008 height / vertical (EPSG: 3855)

Subjects

User Contributed Tags

Other Information

Wallaby-Zenith Fracture Zone Bathymetry 64-128m 2021 (zip) [9 MB]

uri : https://files.ausseabed.gov.au/survey/Wallaby-Zenith%20Fracture%20Zone%20Bathymetry%202021%2064m%20-%20128m.zip External Link

Identifiers

DOI : 10.26186/148851
URI : pid.geoscience.gov.au/dataset/ga/148851
global : 8891fea5-0d9b-48b4-8d53-3b3248151784

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