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.
Survey details
Survey Name: Tanami North East Canning Airborne gravity survey
State/Territory: Western Australia (WA)
Datasets Acquired: Airborne gravity
Geoscience Australia Project Number: P1291A
Acquisition Start Date: 17 August 2017
Acquisition End Date: 15 November 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: 23,953.65
Nominal terrain clearance (above ground level): 710 m
Aircraft model: GippsAero GA-8 Airvan
Data Acquisition: Thomson Aviation Pty Ltd
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, with an initial QC by CMG Operations Pty Ltd, then peer reviewed by Dr Jack McCubbine (Geoscience Australia).
The horizontal datum and projection for all the data are GDA94 and MGA51, 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: MGA51
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-NE-CANNING-FINAL-REPORT.PDF
• QC report from the peer reviewing the data package: Tanami - North East Canning QC report.pdf
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.
