Electromagnetic methods used for the characterisation of aquifers in Timor-Leste

Yusen Ley Cooper; Tim Munday

doi:10.1071/ASEG2012ab409

ISSN: 2202-0586
E-ISSN:

oa Electromagnetic methods used for the characterisation of aquifers in Timor-Leste
Authors Yusen Ley Cooper^a and Tim Munday^a
View Affiliations Hide Affiliations

^a CSIRO, Address [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2012, Issue ASEG2012 - 22nd Geophysical Conference, Dec 2012, p. 1 - 4
DOI: https://doi.org/10.1071/ASEG2012ab409
- Published online: 01 Dec 2012

Abstract

Summary

This work was done in the frame of a greater project aimed at assessing possible impacts of climate change on the groundwater resources in Timor-Leste.

With the intention to contribute to the understanding of the area’s aquifer characteristics and groundwater quality, two lines of time domain EM soundings were acquired in different coastal locations. The acquired data where then inverted and interpreted with in a contextual framework.

The geophysical component within the broader project was brought in to assist with coastal aquifer characterisation and to better understand the aquifers’ architecture. The method employed has proven to be an effective way of sounding the ground in Timor-Leste. Some of the results we have produced have contributed to fill-in gaps between well logs and water chemistry and have helped identify the potential presence of a seawater wedge in proximity of some of the city’s pumping wells.

Article metrics loading...

/content/journals/10.1071/ASEG2012ab409

2012-12-01

2026-01-21

From This Site

/content/journals/10.1071/ASEG2012ab409

dcterms_title,dcterms_subject,pub_keyword

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

10

5

Full text loading...

References

Flemming, E., et al. (1999), Inversion of band-limited TEM responses, Geophysical Prospecting, 47, 551-564.
Grant, F. S., and G. F. West (1965), Interpretation Theory in Applied Geophysics, Mc Graw-Hill.
Malinverno, A. (2002), Parsimonious Bayesian Markov chain Monte Carlo inversion in a nonlinear geophysical problem, Geophysical Journal International, 151, 675–688.
Massie, D. (2010), terraTEM operation Manual edited by M. Geoscope.
Minsley, B. J. (2011), A trans-dimensional Bayesian Markov chain Monte Carlo algorithm for model assessment using frequency-domain electromagnetic data Geophysical Journal International.
Munkholm, M. S., and E. Auken (1996), Electromagnetic Noise Contamination on Transient Electromagnetic Soundings in Culturally Disturbed Environments, Journal of Environmental and Engineering Geophysics, 1(2), 119-127.
Nabighian, M. N. (1979), Quasi-static transient response of a conducting half-space - An approximate representation, Geophysics, 44(10), 17O10-1705.
Nabighian, M. N. (1998), Electromagnetic Methods in Applied Geophyics, SEG.
Reid, J. E., and J. C. Macnae (1998), Comments on the electromagnetic “smoke ring” concept, Geophysics, 63(6), 1908-1913.

/content/journals/10.1071/ASEG2012ab409

Article Type: Research Article

Keyword(s): Transient electromagnetics; Groundwater; saltwater intrusion; Timor-Leste; Hydrogeophysics

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 Electromagnetic methods used for the characterisation of aquifers in Timor-Leste

Abstract

Most Read This Month

Most Cited This Month Most Cited RSS feed