1887
ASEG2007 - 19th Geophysical Conference
  • ISSN: 2202-0586
  • E-ISSN:

Abstract

Summary

Dissolved salt in aquifers is a potential threat to fresh water resources and the environment. Interpolated grid maps at aquifer depths, derived from borehole EC measurements on water samples, are combined with more detailed bulk electrical conductivities from airborne electromagnetics to provide detailed estimates of total dissolved salt load and subsurface porosity values. A resistive host matrix assumption implies that our calculated porosity and salt load values are maximum values. This mapping technique is a large area coverage remote senor method which has been tested in different areas of the salt-threatened Murray-Darling basin. This technique provides extensive information on the hydraulic properties of aquifers, important for quantitative hydrology.

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/content/journals/10.1071/ASEG2007ab075
2007-12-01
2026-01-16
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References

  1. Archie, G. E., 1942, The electrical resistivity log as an aid to determining some reservoir characteristics: Transactions of the AIME, 146, p. 54-62.
  2. Baldridge, W. S., L. C. Gregory, A. R. Bruce and R. J. George, 2007, Application of time-domain airborne electromagnetic induction to hydrogeologic investigations on the Pajarito Plateau, New Mexico, USA: Geophysics, 72, B31-B45.
  3. Buselli, G. and D. R. Williamson, 1996, Modeling of broadband airborne electromagnetic responses from saline environments: Geophysics, 61, 1624 -1632.
  4. Christiansen, A. V. and N. B. Christensen, 2003, A quantitative appraisal of airborne and ground-based transient electromagnetic (TEM) measurements in Denmark: Geophysics, 68, 523-534.
  5. Cresswell, R. G., D. L. Dent, G. L. Jones and D. S. Galloway, 2004, Three-dimensional mapping of salt stores in the southeast Murray-Darling Basin, Australia. 1. Steps in calibration of airborne electromagnetic surveys: Soil Use and Management, 20, 133-143.
  6. Edwards, M. D. and J. A. Webb, 2003, Ground-truthing of a Tempest airborne electromagnetic survey in the salinised Kamarooka catchment, near Bendigo in central Victoria: Advances in regolith; Proceedings CRC LEME Regional Regolith Symposium, Adelaide, Nov 2003, 110-114.
  7. Elliott, P. J. and L. T. Thomas, 1986, Interpretation of lithology from the formation resistivity of unconsolidated argillaceous/arenaceous sediments: Exploration Geophysics, 17 (2), 75-79.
  8. Gonçalves, M. C., J. Šimunek, Tiago B. Ramos, J. C. Martins, M. J. Neves and F. P. Pires, 2006, Multicomponent solute transport in soil lysimeters irrigated with waters of different quality: Water Resources Research, 42,
  9. Hodges, G., 2001, Calibration of the RESOLVE Resistivity Mapping System. http://www.fugroairborne.com/resources/technical_ notes/heli_em/resolve_1.html, accessed 1 Nov. 2006.
  10. Hunt, R. E., 2005, Geotechnical engineering investigation Handbook: Taylor & Francis
  11. Ley-Cooper, Y., J. Macnae, T. Robb and J. Vrbancich, 2006, Identification of calibration errors in helicopter electromagnetic (HEM) data through transform to the altitude-corrected phase-amplitude domain: Geophysics, 71, G27-G34.
  12. Ley-Cooper, Y., J. Macnae and S. Tweed, 2007, Estimating Subsurface Porosity and Salt Loads Using Airborne Geophysical Data.: Near surface Geophysics, In Press.
  13. Macnae, J. C., A. King, N. Soltz, A. Osmakoff and A. Blaha, 1998, Fast AEM data processing and inversion: Exploration Geophysics, 29, 163-169.
  14. McNeill, J. D., 1997, use of electromagnetic methods for ground water studies, S. H. Ward, ed., Geotechnical and environmental Geophysics: Society of Exploration Geophysicists, 191-219.
  15. McWorter, D. B. and D. K. Sunada, 1977, Groundwater Hydrology and Hydraulics, ed., Water Resources Publications:
  16. Paine, J. G. and E. W. Collins, 2003, Applying airborne electromagnetic induction in ground-water salinization and resource studies, West Texas,: in Proceedings, Symposium on the Application of Geophysics to Engineering and Environmental Problems: Environmental and Engineering Geophysical Society, p. 722-738 (CD-ROM).
  17. Schoups, G., J. W. Hopmans, C. A. Young, J. A. Vrugt, W. W. Wallender, K. K. Tanji and S. Panday, 2005, Sustainability of irrigated agriculture in the San Joaquin Valley, California: Proceedings of the National Academy of Sciences, 102, 15352-15356.
  18. Slater, A. L. D. and D. Lesmes, 2002, IP interpretation in environmental investigations: Geophysics, 67, 77-88.
  19. Stewart, M. A., T. N. Bhatt, R. J. Fennema and D. V. Fitterman, 2002,The Road to Flamingo: an Evaluation of Flow Pattern Alterations and Salinity Intrusion in the Lower Glades, Everglades National Park, ed., USGS open file report OFR-02-59.
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  • Article Type: Research Article
Keyword(s): Airborne; Altimeter; Calibration; Electromagnetics; Groundwater; Porosity; Salinity
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