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.
Survey details
Survey Name: Tanami-King Leopold WA airborne gravity survey 2017
State/Territory: Western Australia (WA)
Datasets Acquired: Airborne gravity
Geoscience Australia Project Number: P1291B
Acquisition Start Date: June 16, 2017
Acquisition End Date: August 12, 2017
Flight line spacing: 2.5 km
Flight line direction: 180deg / NS
Tie line spacing: 25km
Tie line direction: 270 deg / EW
Total line kilometers: 25,869.36
Nominal terrain clearance (above ground level): 477 m
Aircraft type: GippsAero GA-8 Airvan
Data Acquisition: Thomson Aviation
Project Management: Geoscience Australia
Quality Control: CMG Operations Pty Ltd and Geoscience Australia
Dataset Ownership: GSWA and Geoscience Australia
Files included in this download
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).
The horizontal datum and projection for all the data are GDA94 and MGA52, respectively.
1. Point-located Data / line data
ASCII column XYZ and ASEG-GDF2 format with accompanying description and definition files.
2.Grids
Datum: GDA94
Projection: MGA52
Grid cell size: 500m
Format: ERMapper (.ers)
Gravity datum: AAGD07.
There are 24 gridded data supplied in ERMapper (.ers) format. The grid cell size is 500 metres. The gravity datum used is AAGD07.
- Reports
• Final survey logistic report delivered to Geoscience Australia by the survey contractor: TNC-TANAMI-FINAL-REPORT.pdf
• QC report from the peer reviewer of the data package: Tanami King Leopold QC report.pdf
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.
