Authors / CoAuthors
Abstract
<div>An airborne gravity survey was conducted over the North East Canning area in the Kimberley region of Western Australia as a part of the Tanami-NE Canning Western Australia Airborne Gravity Survey 2017. The 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 survey was conducted by Thomson Aviation Pty Ltd with a GT-2A gravimeter and managed by Geoscience Australia. A total of 23,953.65 line km of data were acquired over an area of 53,346 km².</div><div><strong>Survey details</strong></div><div>Survey Name: Tanami North East Canning Airborne gravity survey</div><div>State/Territory: Western Australia (WA)</div><div>Datasets Acquired: Airborne gravity</div><div> Geoscience Australia Project Number: P1291A</div><div> Acquisition Start Date: 17 August 2017</div><div> Acquisition End Date: 15 November 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: 23,953.65</div><div> Nominal terrain clearance (above ground level): 710 m</div><div> Aircraft model: GippsAero GA-8 Airvan</div><div>Data Acquisition: Thomson Aviation Pty Ltd</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><br></div><div><strong>Files included in this download </strong></div><div> </div><div>This data package release contains the final survey deliverables received from the contractor Thomson Aviation, with an initial QC by CMG Operations Pty Ltd, then peer reviewed by Dr Jack McCubbine (Geoscience Australia).</div><div> </div><div>The horizontal datum and projection for all the data are GDA94 and MGA51, 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> Datum: GDA94</div><div>Projection: MGA51</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-NE-CANNING-FINAL-REPORT.PDF</em></div><div>• QC report from the peer reviewing the data package: <em>Tanami - North East Canning QC report.pdf</em></div><div> </div><div>The data from this Tanami North East Canning 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 71201. </div><div><br></div>
Product Type
dataset
eCat Id
147444
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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- airborne gravity
- ( Project )
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- Geophysics
- ( Project )
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- Earth Sciences
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- North East Canning
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- Airborne Gravity
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- Western Australia
- theme.ANZRC Fields of Research.rdf
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- Gravimetrics
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- Published_External
Publication Date
2022-12-08T03:14:01
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-NE Canning WA Airborne Gravity Survey 2017 was part of a collaborative research project between Geoscience Australia (GA) and the Geological Survey of Western Australia for the purpose of collecting gravity data at 5 km wavelength resolution to help characterise key undercover geological elements of the region. The survey was conducted during the period August 17 to November 15, 2017 by Thomson Aviation Pty Ltd with a GT-2A gravimeter, quality control and processing services provided by CMG Operations Pty Ltd. Further quality control was conducted by a Geoscience Australia gravity expert.</div><div>- Data acquisition by Thomson Aviation Pty Ltd</div><div>- QC'ed and reviewed by GA in 2017, additional QC during 2021</div><div>- Incorporated into the Australian National Gravity Grids 2019 </div>
Parent Information
Extents
[-36.00, -14.00, 113.00, 129.00]
Reference System
Geocentric Datum of Australia 1994 / geodetic (EPSG: 6283)
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
Source Information