Sander Geophysics Limited (SGL) conducted a fixed-wing high resolution gravimetric survey in the East Kimberley area of the state of Western Australia for Geoscience Australia. A total of 37,806 line kilometres of airborne gravity data were acquired using
SGL’s airborne gravity system, Airborne Inertially Referenced Gravimeter (AIRGrav). The survey was funded by the Department of Mines, Industry Regulation and Safety (DMIRS) Western Australia, and managed by Geoscience Australia.
The data were peer reviewed by airborne gravity expert Dr Mark Dransfield contracted by Geoscience Australia.
The data from this survey were released by the Geological Survey of Western Australia and can be downloaded from MAGIX under reference 71156.
Survey details
Survey Name: East Kimberley Airborne Gravity Survey 2016
State/Territory: Western Australia
Datasets Acquired: Airborne gravity,
Geoscience Australia Project Number: P1289
Acquisition Start Date: 08 October 2016
Acquisition End Date: 03 December 2016
Flight line spacing: 2,500m
Flight line direction: East-West
Tie line spacing: 25,000m
Tie line direction: North-South
Total distance flown: 37,806 line km
Nominal terrain clearance (above ground level): 160m
Aircraft type: Fixed wing Cessna Grand Caravan 208B
Data Acquisition: Sander Geophysics Limited
Project Management: Geoscience Australia
Quality Control: Geoscience Australia
Dataset Ownership: Western Australia Department of Mines, Industry Regulation and Safety, and Geoscience Australia
Files included in this download
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Point-located data / line data
Data in ASEG GDF2 format, with accompanying description and definition files
P1289_grav.dat – survey data
P1289_grav.dfn – survey data definition
P1289_grav.met – survey metadata
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Grids - 7 grid files
Datum: GDA94
Projection: MGA 52
Grid cell size: 500m
Formats: General eXchange Format (.gxf) and ERMapper (.ers) format.
Grid name Units Description
- GRVFAL2500M µms-2 Free air gravity, 2500m half-wavelength spatial filter
- FVDFAL2500M Eotvos First vertical derivative of free air gravity, 2500m half-wavelength spatial filter
- GRVBGL2500M_267 µms-2 Full Bouguer gravity, 2500m half-wavelength spatial filter, 2670 kg/m3 density
- FVDBGL2500M_267 Eotvos First vertical derivative of full Bouguer gravity, 2500m half-wavelength spatial filter, 2670 kg/m3 density
- GRVISO2500M_267 µms-2 Isostatic residual gravity, 2500m half-wavelength spatial filter, 2670 kg/m3 density
- FVDISO2500M_267 Eotvos First vertical derivative of isostatic residual gravity, 2500m half-wavelength spatial filter, 2670 kg/m3 density
- BAREEARTH m Bare earth terrain (above GDA94 Ellipsoid)
- Reports
- Delivery Information from contractor: Delivery Information - East Kimberley AIRGrav.pdf
- Final technical report from the contractor: East Kimberley 2016 TR-842-002.pdf
- Quality control report: East Kimberley 2016 QC report.pdf
