A holistic approach to inversion of time-domain airborne EM

Ross Brodie; Malcolm Sambridge

doi:10.1071/ASEG2006ab019

ISSN: 2202-0586
E-ISSN:

oa A holistic approach to inversion of time-domain airborne EM
Authors Ross Brodie and Malcolm Sambridge
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2006, Issue ASEG2006 - 18th Geophysical Conference, Dec 2006, p. 1 - 4
DOI: https://doi.org/10.1071/ASEG2006ab019
- Published online: 01 Dec 2006

Abstract

A “holistic” method for simultaneously estimating conductivity and calibration models from 1-D inversion of time-domain airborne electromagnetic (AEM) data is proposed. The work extends the concept of holistic inversion that been successfully applied to frequency-domain AEM data. The entire multi-component airborne dataset and available independent conductivity and interface-depth data are simultaneously inverted. A spline-based conductivity model covering the complete survey area is estimated. Unmonitored elements of the system geometry are included as unknown parameters of the calibration model and are solved for in the inversion.

Conventional 1-D inversion methods invert each airborne sample in isolation from other samples. However, by simultaneously considering all of the available information together in a holistic inversion formulation, we are able to exploit the inter-component and spatial coherency characteristics of the airborne data. The formulation ensures that the conductivity and calibration models are optimal with respect to the airborne data and prior information.

Article metrics loading...

/content/journals/10.1071/ASEG2006ab019

2006-12-01

2026-01-13

From This Site

/content/journals/10.1071/ASEG2006ab019

dcterms_title,dcterms_subject,pub_keyword

-contentType:Journal -contentType:Contributor -contentType:Concept -contentType:Institution

10

5

Full text loading...

References

Brodie, R.C., and Lane, R., 2003, The importance of accurate altimetry in AEM surveys for land management: Exploration Geophysics, 34, 77-81.
Brodie, R. C, and Sambridge, M. 2005, A Holistic approach to inversion of frequency-domain airborne EM data: submitted to Geophysics.
Christensen, A., 2003, Calibration of Honeysuckle Creek conductivity depth imaging: Preview, Australian Society of Exploration Geophysicists 106, 27-30.
Fitzpatrick, A., 2004, Calculation of conductivity depth images (CDI) for SA AEM data using EMFlow 5.30 (AMIRA-P407B): RESOLVE: Riverland and Tintinara (East & West); TEMPEST: Jamestown & Angas Bremer Plians Cooperative Research Centre for Landscapes, Environment and Mineral Exploration, Open file report 176.
Lane, R., Green, A, Golding, C, Owers, M., Pik, P., Plunkett, C, Sattel, D., and Thorn, B. 2000, An example of 3D conductivity mapping using the TEMPEST airborne electromagnetic system: Exploration Geophysics, 31, 162–172.
Lane, R., Brodie, R.C., and Fitzpatrick, A, 2004, Constrained inversion of AEM data from the Lower Balonne area, Southern Queensland, Australia: Cooperative Research Centre for Landscapes, Environment and Mineral Exploration, Open file report 163.
Sattel, D., Lane, R., and Pears, G., 2004, Novel ways to process and model GEOTEM data: 17th Geophysical Conference and Exhibition., Australian Society of Exploration Geophysicists, Extended Abstracts.
Smith, R.S., 2001a, On removing the primary field from fixed-wing time-domain airborne electromagnetic data: some consequences for quantitative modelling, estimating bird position and detecting perfect conductors: Geophysical Prospecting, 49, 405–416.
Smith, R.S., 2001b, Tracking the transmitting-receiving offset in fixed-wing transient EM systems: methodology and application: Exploration Geophysics, 32, 14-19.

/content/journals/10.1071/ASEG2006ab019

Article Type: Research Article

Keyword(s): airborne; calibration; electromagnetic; geometry; holistic; inversion; spline

Most Cited This Month Most Cited RSS feed

- Inversion of data from electrical imaging surveys in water-covered areas
  
  Authors M. H. Loke and J. W. Lane
- Inversion of Magnetic Data from Remanent and Induced Sources
  
  Authors Robert G. Elllis, Barrry de Wet and Ian N. Macleod
- A comparison of smooth and blocky inversion methods in 2-D electrical imaging surveys
  
  Authors M. H. Loke, Ian Acworth and Torleif Dahlin
- Designing matched bandpass and azimuthal filters for the separation of potential-field anomalies by source region and source type
  
  Authors Jeffrey D. Phillips
- Bad Colour Maps Hide Big Features and Create False Anomalies
  
  Authors Peter Kovesi
- Practical 3D EM inversion – the P223F software suite
  
  Authors Art Raiche, Fred Sugeng and Glenn Wilson
- Estimating Noise Levels in AEM Data
  
  Authors Andy Green and Richard Lane
- Target delineation using Full Tensor Gravity Gradiometry data
  
  Authors Colm A. Murphy and James Brewster
- Transdimensional Monte Carlo Inversion of AEM Data
  
  Authors Ross C Brodie and Malcolm Sambridge
- The geotech VTEM time domain helicopter em system
  
  Authors Ken Witherly, Richard Irvine and Edward Morrison
More Less

oa A holistic approach to inversion of time-domain airborne EM

Abstract

Most Read This Month

Most Cited This Month Most Cited RSS feed