Authors / CoAuthors
Abstract
<div>The Tanami–King Leopold survey was part of a collaborative research project between Geoscience Australia (GA) and the Geological Survey of Western Australia. Gravity data was collected at 5 km wavelength resolution with the purpose to help characterise key undercover geological elements of the region. The project area extends approximately from the Balgo Hills region near the border with the Northern Territory through to Derby in the west. The survey was conducted by Thomson Aviation Pty Ltd with a GT-2A gravimeter and managed by GA. A total of 25,869.36 line km of data were acquired over an area of 58,040 km².</div><div> </div><div><strong>Survey details</strong></div><div>Survey Name: Tanami-King Leopold WA airborne gravity survey 2017</div><div>State/Territory: Western Australia (WA)</div><div>Datasets Acquired: Airborne gravity</div><div> Geoscience Australia Project Number: P1291B</div><div> Acquisition Start Date: June 16, 2017</div><div> Acquisition End Date: August 12, 2017</div><div> Flight line spacing: 2.5 km</div><div> Flight line direction: 180deg / NS</div><div> Tie line spacing: 25km</div><div> Tie line direction: 270 deg / EW</div><div>Total line kilometers: 25,869.36</div><div> Nominal terrain clearance (above ground level): 477 m</div><div> Aircraft type: GippsAero GA-8 Airvan</div><div>Data Acquisition: Thomson Aviation </div><div> Project Management: Geoscience Australia</div><div> Quality Control: CMG Operations Pty Ltd and Geoscience Australia</div><div> Dataset Ownership: GSWA and Geoscience Australia</div><div> </div><div><strong>Files included in this download</strong></div><div>This data package release contains the final survey deliverables received from the contractor Thomson Aviation. Quality control and data processing services were provided by CMG Operations Pty Ltd and peer reviewed by Dr Jack McCubbine (Geoscience Australia).</div><div> </div><div>The horizontal datum and projection for all the data are GDA94 and MGA52, respectively.</div><div> </div><div><strong>1.</strong> <strong><em>Point-located Data / line data</em></strong></div><div>ASCII column XYZ and ASEG-GDF2 format with accompanying description and definition files.</div><div><br></div><div> <strong><em>2.Grids</em></strong> </div><div> </div><div>Datum: GDA94</div><div>Projection: MGA52</div><div>Grid cell size: 500m</div><div>Format: ERMapper (.ers)</div><div>Gravity datum: AAGD07. </div><div> </div><div>There are 24 gridded data supplied in ERMapper (.ers) format. The grid cell size is 500 metres. The gravity datum used is AAGD07. </div><div><br></div><div> <strong>3. Reports</strong> </div><div> • Final survey logistic report delivered to Geoscience Australia by the survey contractor: <em>TNC-TANAMI-FINAL-REPORT.pdf</em></div><div>• QC report from the peer reviewer of the data package: <em>Tanami King Leopold QC report.pdf</em></div><div> </div><div>The data from this Tanami King Leopold survey can also be downloaded from the Geological Survey of Western Australia’s MAGIX platform at https://magix.dmirs.wa.gov.au and GeoVIEW.WA web mapping application at https://geoview.dmp.wa.gov.au/GeoView under reference number 71200. </div><div><br></div>
Product Type
dataset
eCat Id
147445
Contact for the resource
Resource provider
Point of contact
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
Point of contact
Digital Object Identifier
Keywords
- ( Project )
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- Tanami King Leopold
- ( Project )
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- Western Australia
- ( Project )
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- airborne gravity
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- Airborne Gravity
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- Tanami
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- airborne geophysics
- theme.ANZRC Fields of Research.rdf
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- Gravimetrics
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- Published_External
Publication Date
2022-12-11T23:22:29
Creation Date
2022-11-23T20:00:00
Security Constraints
Legal Constraints
Status
completed
Purpose
High-resolution gravity on regional/district scales is an important component of mineral and energy integrated pre-competitive approach to data collection and information to support new and ongoing industry exploration investment in Australia's resources. Such data is also invaluable for vertical positioning accuracy with industry and government agencies requiring vertical height surfaces to within 10 cm for advanced (often autonomous) operations, productivity efficiency, and safety.
Maintenance Information
asNeeded
Topic Category
geoscientificInformation
Series Information
Lineage
<div>The Tanami–King Leopold survey was part of a collaborative research project between Geoscience Australia (GA) and the Geological Survey of Western Australia. Gravity data was collected at 5 km wavelength resolution with the purpose to help characterise key undercover geological elements of the region.</div><div>- data acquisition by Thomson Aviation Pty Ltd</div><div>- Quality control and data processing services were provided by CMG Operations Pty Ltd with a further quality control by Geoscience Australia in 2018 and during 2021</div><div>- Data incorporated in the 2019 Australian National Gravity Grids</div>
Parent Information
Extents
[-21.50, -19.00, 126.00, 129.00]
Reference System
GDA94 / MGA zone 52 (EPSG:28352)
Spatial Resolution
Service Information
Associations
Association Type - isComposedOf
2019 Australian National Gravity Grids: Free Air Anomaly, Complete Bouguer Anomaly, De-trended Global Isostatic Residual, 400 m cell size (includes Point Located Data)
eCat Identifier - 133023,
UUID - fe9e34e3-8591-46f6-99ab-f73fb6f9fd43
Association Type - informed
2019 Australian National Gravity Grids Explanatory Notes
eCat Identifier - 144233,
UUID - a9b9c288-ce06-49cc-a943-68571bdc40e3
Downloads and Links
Source Information