Probabilistic airborne electromagnetic inversion of 20 km AusAEM data, Phase 1

This airborne electromagnetic (AEM) dataset provides regional scale probabilistic inversion products from 141,000 line km of airborne electromagnetic (AEM) data from the AusAEM program.

The two main benefits of a probabilistic inversion over a deterministic one are:

- Loss of signal sensitivity at depth does not “fade to blue” by returning to the resistive deterministic reference model.

- Ambiguous subsurface features become clearer when examining multiple probability percentiles.

Further details are provided in the accompanying technical note.

Conductivity products from the following surveys are available:

- Frome 2011

- AusAEM 1 NT (2017)

- AusAEM 1 QLD (2017)

- AusAEM 2 Tranche 1 part (2019)

- AusAEM 3 Eastern Resources Corridor (all 3 phases)

- AusAEM 3 Western Resources Corridor (Kimberley, Central, Musgraves and South)

The 10th, 50th and 90th and mean percentiles of log10 conductivity are provided in a variety of formats:

- VTK structured grids

- ASCII point clouds

- ASEG-GDF2 files

- GOCAD S-grids

All products have been provided in the coordinate reference system (CRS) the original AEM data were provided in. The VTK unstructured grids are also provided in GDA94 geodetic longitude, latitude coordinates for ease of display in the same CRS.

Identification info

Date (Creation): 2024-03-25T05:00:00

Date (Publication): 2024-08-07T06:17:55

Citation identifier: Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/149375

Citation identifier: Digital Object Identifier/https://dx.doi.org/10.26186/149375

Cited responsible party

Role	Organisation / Individual Name	Details
Publisher	Commonwealth of Australia (Geoscience Australia)	Voice
Author	Ray, A.	Internal Contact
Author	Douglas, A.	External Contact
Author	VanDerWielen, S.	Internal Contact
Author	LeyCooper, Y.	Internal Contact
Author	Brodie, R.	Internal Contact
Author	Symington, N.	Internal Contact
Author	Nicoll, M.	Internal Contact
Author	Wong, S.	Internal Contact
Author	Sun, Y.	External Contact
Author	Czarnota, K.	Internal Contact

Purpose: Uncertainty estimation for rapid interpretation of subsurface geology.

Status: Completed

Point of contact

Role	Organisation / Individual Name	Details
Resource provider	Minerals, Energy and Groundwater Division	External Contact
Point of contact	Commonwealth of Australia (Geoscience Australia)	Voice
Point of contact	Ray, A.	Internal Contact

Spatial representation type

Topic category

Geoscientific information

Extent

Temporal extent

Time period: 2024-03-25 2024-03-25

Maintenance and update frequency: Not planned

Resource format

Title: Product data repository: Various Formats

Website: Data Store directory containing the digital product files

Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes

Project

EFTF – Exploring for the Future

Project

Australia’s Resources Framework

Keywords

airborne electromagnetics

Keywords

probability

Keywords

geophysical inversion

theme.ANZRC Fields of Research.rdf

Electrical and electromagnetic methods in geophysics

Keywords

Published_External

Resource constraints

Title: Creative Commons Attribution 4.0 International Licence

Alternate title: CC-BY

Edition: 4.0

Website

https://creativecommons.org/licenses/by/4.0/

Addressee

Role	Organisation / Individual Name	Details
User	Any

Use constraints: License

Use constraints: Other restrictions

Other constraints: (c) Commonwealth of Australia (Geoscience Australia) 2024

Resource constraints

Title: Australian Government Security Classification System

Edition date: 2018-11-01T00:00:00

Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification: Unclassified

Classification system: Australian Government Security Classification System

Language: English

Character encoding: UTF8

Distribution Information

Distributor contact

Role	Organisation / Individual Name	Details
Distributor	Commonwealth of Australia (Geoscience Australia)	Voice facsimile

OnLine resource: Download summary document describing package contents (pdf) [1.8 MB]

Download summary document describing package contents (pdf) [1.8 MB]

Distribution format

pdf

File decompression technique

nil

OnLine resource: Download line locations as shapefiles (shp gpkg) [6.0 MB]

Download line locations as shapefiles (shp gpkg) [6.0 MB]

Distribution format

shp dbj prj shx gpkg

File decompression technique

unzip

OnLine resource: Download conductivity percentiles as summary PNG images [6.2 GB]

Download conductivity percentiles as summary PNG images [6.2 GB]

Distribution format

png txt

File decompression technique

unzip

OnLine resource: Download conductivity percentiles in ASEG-GDF format [188.5 MB]

Download conductivity percentiles in ASEG-GDF format [188.5 MB]

Distribution format

dat dfn hdr

File decompression technique

unzip

OnLine resource: Download 3D GOCAD SGrids [550.9 MB]

Download 3D GOCAD SGrids [550.9 MB]

Distribution format

txt sg data

File decompression technique

unzip

OnLine resource: Download conductivity percentiles as 3D VTK structured in MGA survey projections (vts) [338.1 MB]

Download conductivity percentiles as 3D VTK structured in MGA survey projections (vts) [338.1 MB]

Distribution format

txt vts

File decompression technique

unzip

OnLine resource: Download conductivity percentiles as 3D VTK structured grids in GDA94 longitude latitude (vts) [339.5 MB]

Download conductivity percentiles as 3D VTK structured grids in GDA94 longitude latitude (vts) [339.5 MB]

Distribution format

vtk xml

File decompression technique

unzip

OnLine resource: Download conductivity percentiles as ASCII plain text files in MGA survey projections (txt) [802.5 MB]

Download conductivity percentiles as ASCII plain text files in MGA survey projections (txt) [802.5 MB]

Distribution format

txt

File decompression technique

unzip

Resource lineage

Statement: <div>This product is associated with deliverables from the HiQGA software</div>

Metadata constraints

Title: Australian Government Security Classification System

Edition date: 2018-11-01T00:00:00

Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification: Unclassified

Metadata

Metadata identifier

urn:uuid/f1b141b7-8c2d-497e-9823-fa584820ba05

Title: GeoNetwork UUID

Language: English

Character encoding: UTF8

Contact

Role	Organisation / Individual Name	Details
Point of contact	Commonwealth of Australia (Geoscience Australia)	Voice
Point of contact	Ray, A.	Internal Contact

Type of resource

Resource scope: Dataset

Alternative metadata reference

Title

Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier: eCatId/149375

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/f1b141b7-8c2d-497e-9823-fa584820ba05

Metadata linkage

https://ecat.ga.gov.au/geonetwork/skr/eng/catalog.search#/metadata/f1b141b7-8c2d-497e-9823-fa584820ba05

Metadata linkage

https://ecat.ga.gov.au/geonetwork/static/eng/catalog.search#/metadata/f1b141b7-8c2d-497e-9823-fa584820ba05

Date info (Creation): 2024-07-09T05:04:13

Date info (Revision): 2024-07-09T05:04:13

Metadata standard

Title: AU/NZS ISO 19115-1:2014

Metadata standard

Title: ISO 19115-1:2014

Metadata standard

Title: ISO 19115-3

Title: Geoscience Australia Community Metadata Profile of ISO 19115-1:2014

Edition: Version 2.0, September 2018

Citation identifier: http://pid.geoscience.gov.au/dataset/ga/122551

Spatial extent

Provided by

Access to the portal

Read here the full details and access to the data.

Associated resources

Not available

Simple

Identification info

Extent

Temporal extent

Resource format

Resource constraints

Resource constraints

Distribution Information

Resource lineage

Metadata constraints

Metadata

Type of resource

Alternative metadata reference

Metadata standard

Metadata standard

Metadata standard

Spatial extent

Keywords

Provided by

Associated resources