1887
PDF

Abstract

Summary

Airborne electromagnetic methods (AEM) have in the last decade undergone immense hardware and software developments. 10 years ago high resolution shallow surveys for geotechnical engineering, aquifer mapping, landslides etc, could only be done by frequency domain methods whereas time domain methods were more suited for deep measurements. Today, the development of the time domain methods has reached a level where the same or even better data from an airborne platform is obtained compared to the best groundbased system. Also, data inversion has changed from being dominated by approximate algorithms to full solutions modelling the complete system characteristics with inversion of thousands of line kilometers of data in one run. These inversions are possible because the algorithms use multithreaded architecture, which efficiently runs on small workstations or severs.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201411989
2015-03-27
2024-03-28
Loading full text...

Full text loading...

/deliver/fulltext/2214-4609/2015/18-20-Auken-etal.html?itemId=/content/papers/10.3997/2214-4609.201411989&mimeType=html&fmt=ahah

References

  1. AukenE., ChristiansenA.V., KirkegaardC., FiandacaG., SchamperC., BehroozmandA.A., BinleyA., NielsenE., EffersøF., ChristensenN.B., SørensenK.I., FogedN., and VignoliG.
    2014. An overview of a highly versatile forward and stable inverse algorithm for airborne, ground-based and borehole electromagnetic and electric data. Exploration Geophysics1–13, DOI: 10.1071/EG13097.
    https://doi.org/10.1071/EG13097 [Google Scholar]
  2. AukenE., ChristiansenA.V., WestergaardJ.A., KirkegaardC., FogedN., and ViezzoliA.
    2009. An integrated processing scheme for high-resolution airborne electromagnetic surveys, the SkyTEM system. Exploration Geophysics40, 184–192.
    [Google Scholar]
  3. FiandacaG., AukenE., KirkegaardC., and ChristiansenA.V.
    2014. Voxel inversion of airborne electromagnetic data for improved model integration. Vienna.
    [Google Scholar]
  4. KirkegaardC. and AukenE.
    2014. A parallel, scalable and memory efficient inversion code for very large scale airborne EM surveys. Geophysical Prospecting.
    [Google Scholar]
  5. SchamperC., AukenE., and SørensenK.I.
    2014. Coil response inversion for very early time modelling of helicopter-borne time-domain electromagnetic data and mapping of near-surface geological layers. Geophysical Prospecting62, 658–674, DOI: 10.1111/1365‑2478.12104.
    https://doi.org/10.1111/1365-2478.12104 [Google Scholar]
  6. SørensenK.I. and AukenE.
    2004. SkyTEM - A new high-resolution helicopter transient electromagnetic system. Exploration Geophysics35, 191–199.
    [Google Scholar]
  7. ViezzoliA., ChristiansenA.V., AukenE., and SørensenK.I.
    2008. Quasi-3D modeling of airborne TEM data by Spatially Constrained Inversion. Geophysics73, F105–F113.
    [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201411989
Loading
/content/papers/10.3997/2214-4609.201411989
Loading

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error