AusAEM Phase 1: Probabilistic Airborne Electromagnetic Inversion of 141,000 km

141,000 line kilometers of airborne electromagnetic (AEM) data from the AusAEM program have been processed into regional-scale probabilistic inversion products. The dataset, provided by Geoscience Australia, includes the 10th, 50th, 90th, and mean percentiles of log10 conductivity. Data from multiple surveys conducted between 2011 and 2019 are available in formats including VTK grids, ASCII point clouds, ASEG-GDF2, and GOCAD S-grids.

Use Cases

• Model subsurface conductivity uncertainty based on the provided probabilistic percentiles.
• Map regional geological features using the airborne electromagnetic inversion products.
• Integrate conductivity data with other geospatial layers for resource assessment.
• Visualize 3D subsurface structures using the provided VTK structured grids or GOCAD S-grids.

Strengths

• Covers 141,000 line kilometers of airborne electromagnetic survey data.
• Provides probabilistic inversion products (10th, 50th, 90th, mean percentiles) to address ambiguity.
• Includes data from multiple surveys spanning from 2011 to 2019.
• Offers data in multiple standard geospatial formats (VTK, ASCII, ASEG-GDF2, GOCAD).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and total file size are unknown, which may limit suitability assessment.

Provenance

Source

Geoscience Australia Data

Collection Method

Airborne electromagnetic (AEM) survey data processed through probabilistic inversion.

Time Range

Surveys conducted from 2011 to 2019.

Freshness

Last updated 2026-06-24 04:58:26.316351; freshness should be verified.

Geography

Australia, covering regions including Frome, Northern Territory, Queensland, Eastern and Western Resources Corridors.