Authors / CoAuthors
Ray, A. | Douglas, A. | VanDerWielen, S. | LeyCooper, Y. | Brodie, R. | Symington, N. | Nicoll, M. | Wong, S. | Sun, Y. | Czarnota, K.
Abstract
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.
Product Type
dataset
eCat Id
149375
Contact for the resource
Resource provider
Point of contact
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
Point of contact
Digital Object Identifier
Keywords
- ( Project )
-
- EFTF – Exploring for the Future
- ( Project )
-
- Australia’s Resources Framework
-
- airborne electromagnetics
-
- probability
-
- geophysical inversion
- theme.ANZRC Fields of Research.rdf
-
- Electrical and electromagnetic methods in geophysics
-
- Published_External
Publication Date
2024-08-07T06:17:55
Creation Date
2024-03-25T05:00:00
Security Constraints
Legal Constraints
Status
completed
Purpose
Uncertainty estimation for rapid interpretation of subsurface geology.
Maintenance Information
notPlanned
Topic Category
geoscientificInformation
Series Information
Lineage
<div>This product is associated with deliverables from the HiQGA software</div>
Parent Information
Extents
[-44, -9, 112, 154]
Reference System
Spatial Resolution
Service Information
Associations
Downloads and Links
Download summary document describing package contents (pdf) [1.8 MB]
Download line locations as shapefiles (shp gpkg) [6.0 MB]
Download conductivity percentiles as summary PNG images [6.2 GB]
Download conductivity percentiles in ASEG-GDF format [188.5 MB]
Download 3D GOCAD SGrids [550.9 MB]
Download conductivity percentiles as 3D VTK structured in MGA survey projections (vts) [338.1 MB]
Download conductivity percentiles as 3D VTK structured grids in GDA94 longitude latitude (vts) [339.5 MB]
Download conductivity percentiles as ASCII plain text files in MGA survey projections (txt) [802.5 MB]
Source Information