From Geoscience Australia
JSON RDF ISO19115-3 XML

Trans-dimensional Bayesian inversion of Airborne Electromagnetic data for 2D conductivity profiles

ARCHIVED

Created 13/01/2025

Updated 13/01/2025

JSON RDF ISO19115-3 XML

This paper presents the application of a novel trans-dimensional sampling approach to a time domain airborne electromagnetic (AEM) inverse problem to solve for plausible conductivities of the subsurface. Geophysical inverse problems, such as time domain AEM, are well known to have a large degree of non-uniqueness. Common least-squares optimization approaches fail to take this into account and provide a single solution with linearized estimates of uncertainty which can result in overly optimistic appraisal of the conductivity of the subsurface. In this new non-linear approach, the spatial complexity of a 2D profile is controlled directly by the data. By examining an ensemble of proposed conductivity profiles it accommodates non-uniqueness and provides more robust estimates of uncertainties. Citation: Hawkins, R., Brodie, R. C., & Sambridge, M. (2018). Trans-dimensional Bayesian inversion of airborne electromagnetic data for 2D conductivity profiles. Exploration Geophysics, 49(2), 134–147. https://doi.org/10.1071/EG16139

Files and APIs

Tags

Additional Info

Field Value
Title Trans-dimensional Bayesian inversion of Airborne Electromagnetic data for 2D conductivity profiles
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/f5a55823-26b6-42ea-8e7a-bf7669da8556
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 14/11/2016
Geospatial Coverage {"type": "Polygon", "coordinates": [[[112.92, -54.75], [159.11, -54.75], [159.11, -9.2402], [112.92, -9.2402], [112.92, -54.75]]]}
Data Portal data.gov.au

Data Source

This dataset was originally found on data.gov.au "Trans-dimensional Bayesian inversion of Airborne Electromagnetic data for 2D conductivity profiles". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/trans-dimensional-bayesian-inversion-of-airborne-electromagnetic-data-for-2d-conductivity-profi

Original dataset
Dataset copies

No duplicate datasets found.