Data

P1314 Pilbara Western Australia Airborne Gravity Surveys 2019

Geoscience Australia
Commonwealth of Australia (Geoscience Australia)
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=info:doi10.26186/147265&rft.title=P1314 Pilbara Western Australia Airborne Gravity Surveys 2019&rft.identifier=10.26186/147265&rft.publisher=Commonwealth of Australia (Geoscience Australia)&rft.description=Sander Geophysics Limited (SGL) conducted a fixed-wing high resolution airborne gravimetric survey over two survey blocks, Pilbara Northwest and Pilbara Southeast in Northwestern Australia for Geoscience Australia and its partner the Geological Survey of Western Australia (GSWA). The traverse lines were oriented east-west in the Pilbara Northwest block and north-south in the Pilbara Southeast block and spaced at 2500 m. A limited number of control lines flown exclusively in the Pilbara Northwest block were oriented north-south and spaced at 50,000 m. A drape surface was created taking into account the terrain and the performance of the aircraft at the expected altitudes and estimated temperatures. The survey was flown with a target clearance of survey 160m above ground level.  Survey details Survey Name: Pilbara WA airborne gravity surveys 2019State/Territory: Western Australia (WA)Datasets Acquired: Airborne gravity Geoscience Australia Project Number: P1314 Acquisition Start Date: April 23, 2019 Acquisition End Date: June 16, 2019 Flight line spacing: 2500m Flight line direction: 270deg / EW (Pilbara NW); 180deg / NS (Pilbara SE) Control line spacing: 50,000m – Pilbara NW only Control line direction: 180 deg / NS – Pilbara NW onlyTotal line kilometers: 69,943 Nominal terrain clearance (above ground level): 160m Aircraft type: Cessna Grand Caravan 208BData Acquisition: Sander Geophysics Limited Project Management: Geoscience Australia Quality Control: Geoscience Australia Dataset Ownership: GSWA and Geoscience Australia This data package release contains the final survey deliverables received from the contractor SGL, and peer reviewed by Dr Mark Dransfield. 1. Point-located Data / line dataASCII XYZ and ASEG-GDF2 format with accompanying description and definition files.2.Grids in General eXchange Format (.gxf) and ERMapper format (.ers) Datum:      GDA94Projection:  MGA 50Grid cell size: 500mA full wavelength spatial filter of 5000m was applied to all the gravity grids. See details in the readme files. 3. Readme files- PNW-readme-grav.txt - PSE-readme-grav.txt4. Reports - Final survey logistic report (Pilbara SE and NW) from the contractor: P1314_Pilbara_2019_TR-878-000.pdf - Pilbara NW survey QC report by M Dransfield: Pilbara NW AG QC report.pdf - Pilbara SE survey QC report by M Dransfield: Pilbara SE AG QC report.pdf The data from this Pilbara survey are also available for download from https://geoview.dmp.wa.gov.au/GeoView under reference number 71470.Maintenance and Update Frequency: notPlannedStatement: Sander Geophysics Limited (SGL) conducted a fixed-wing high resolution airborne gravimetric survey over two survey blocks, Pilbara Northwest and Pilbara Southeast in Northwestern Australia for Geoscience Australia and its partner the Geological Survey of Western Australia (GSWA). The traverse lines were oriented east-west in the Pilbara Northwest block and north-south in the Pilbara Southeast block and spaced at 2500 m. A limited number of control lines flown exclusively in the Pilbara Northwest block were oriented north-south and spaced at 50,000 m. A drape surface was created taking into account the terrain and the performance of the aircraft at the expected altitudes and estimated temperatures. The survey was flown with a target clearance of survey 160m above ground level. A total of 69,943 line kilometres of data were acquired during the survey.&rft.creator=Commonwealth of Australia (Geoscience Australia) &rft.date=2022&rft.coverage=westlimit=114.00; southlimit=-24.00; eastlimit=121.00; northlimit=-19.00; projection=GDA94 / MGA zone 50 / projected (EPSG: 28350)&rft.coverage=westlimit=114.00; southlimit=-24.00; eastlimit=121.00; northlimit=-19.00; projection=GDA94 / MGA zone 50 / projected (EPSG: 28350)&rft.coverage=uplimit=500; downlimit=0; projection=Australian Height Datum / vertical (EPSG: 5111)&rft.coverage=uplimit=500; downlimit=0; projection=Australian Height Datum / vertical (EPSG: 5111)&rft_rights=© Commonwealth of Australia (Geoscience Australia) 2022, State of Western Australia&rft_rights=Australian Government Security Classification System https://www.protectivesecurity.gov.au/Pages/default.aspx&rft_subject=geoscientificInformation&rft_subject=Pilbara&rft_subject=Geological Survey of Western Australia&rft_subject=P1314&rft_subject=Geoscience Australia&rft_subject=Airborne Gravity&rft_subject=Geophysics&rft_subject=Gravimetrics&rft_subject=Published_External&rft.type=dataset&rft.language=English Access the data
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Full description

Sander Geophysics Limited (SGL) conducted a fixed-wing high resolution airborne gravimetric survey over two survey blocks, Pilbara Northwest and Pilbara Southeast in Northwestern Australia for Geoscience Australia and its partner the Geological Survey of Western Australia (GSWA).
The traverse lines were oriented east-west in the Pilbara Northwest block and north-south in the Pilbara Southeast block and spaced at 2500 m. A limited number of control lines flown exclusively in the Pilbara Northwest block were oriented north-south and spaced at 50,000 m. A drape surface was created taking into account the terrain and the performance of the aircraft at the expected altitudes and estimated temperatures. The survey was flown with a target clearance of survey 160m above ground level.
 
Survey details
Survey Name: Pilbara WA airborne gravity surveys 2019
State/Territory: Western Australia (WA)
Datasets Acquired: Airborne gravity
Geoscience Australia Project Number: P1314
Acquisition Start Date: April 23, 2019
Acquisition End Date: June 16, 2019
Flight line spacing: 2500m
Flight line direction: 270deg / EW (Pilbara NW); 180deg / NS (Pilbara SE)
Control line spacing: 50,000m – Pilbara NW only
Control line direction: 180 deg / NS – Pilbara NW only
Total line kilometers: 69,943
Nominal terrain clearance (above ground level): 160m
Aircraft type: Cessna Grand Caravan 208B
Data Acquisition: Sander Geophysics Limited
Project Management: Geoscience Australia
Quality Control: Geoscience Australia
Dataset Ownership: GSWA and Geoscience Australia
 
This data package release contains the final survey deliverables received from the contractor SGL, and peer reviewed by Dr Mark Dransfield.
 
1. Point-located Data / line data
ASCII XYZ and ASEG-GDF2 format with accompanying description and definition files.

2.Grids in General eXchange Format (.gxf) and ERMapper format (.ers)
Datum:      GDA94
Projection:  MGA 50
Grid cell size: 500m
A full wavelength spatial filter of 5000m was applied to all the gravity grids. See details in the readme files.

3. Readme files
- PNW-readme-grav.txt
- PSE-readme-grav.txt

4. Reports
- Final survey logistic report (Pilbara SE and NW) from the contractor: P1314_Pilbara_2019_TR-878-000.pdf
- Pilbara NW survey QC report by M Dransfield: Pilbara NW AG QC report.pdf
- Pilbara SE survey QC report by M Dransfield: Pilbara SE AG QC report.pdf

The data from this Pilbara survey are also available for download from https://geoview.dmp.wa.gov.au/GeoView under reference number 71470.

Lineage

Maintenance and Update Frequency: notPlanned
Statement:
Sander Geophysics Limited (SGL) conducted a fixed-wing high resolution airborne gravimetric survey over two survey blocks, Pilbara Northwest and Pilbara Southeast in Northwestern Australia for Geoscience Australia and its partner the Geological Survey of Western Australia (GSWA).
The traverse lines were oriented east-west in the Pilbara Northwest block and north-south in the Pilbara Southeast block and spaced at 2500 m. A limited number of control lines flown exclusively in the Pilbara Northwest block were oriented north-south and spaced at 50,000 m. A drape surface was created taking into account the terrain and the performance of the aircraft at the expected altitudes and estimated temperatures. The survey was flown with a target clearance of survey 160m above ground level. A total of 69,943 line kilometres of data were acquired during the survey.

Notes

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.

Created: 06 10 2022

Issued: 13 11 2022

Data time period: 2019-04-23 to 2019-06-16

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121,-19 121,-24 114,-24 114,-19 121,-19

117.5,-21.5

text: westlimit=114.00; southlimit=-24.00; eastlimit=121.00; northlimit=-19.00; projection=GDA94 / MGA zone 50 / projected (EPSG: 28350)

text: uplimit=500; downlimit=0; projection=Australian Height Datum / vertical (EPSG: 5111)

Subjects
Airborne Gravity | Geological Survey of Western Australia | Geophysics | Geoscience Australia | Gravimetrics | P1314 | Pilbara | Published_External | geoscientificInformation |

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Other Information
Download Technical Report for P1314 Pilbara (pdf) [58.7 MB]

url : https://d28rz98at9flks.cloudfront.net/147265/147265_02_0.pdf

Download QC Report - Pilbara NW (pdf) [6.2 MB]

url : https://d28rz98at9flks.cloudfront.net/147265/147265_03_0.pdf

Download QC Report - Pilbara SE (pdf) [2.9 MB]

url : https://d28rz98at9flks.cloudfront.net/147265/147265_04_0.pdf

Download Data - Pilbara Southeast (zip) [173.6 MB]

url : https://d28rz98at9flks.cloudfront.net/147265/147265_00_0.zip

Download Data - Pilbara Northwest (zip) [869.8 MB]

url : https://d28rz98at9flks.cloudfront.net/147265/147265_01_0.zip

2019 Australian National Gravity Grids: Free Air Anomaly, Complete Bouguer Anomaly, De-trended Global Isostatic Residual, 400 m cell size (includes Point Located Data)

local : 133023

2019 Australian National Gravity Grids Explanatory Notes

local : 144233

Identifiers