Hybrid inversion of airborne TEM data - Mixed precision responses for tunable performance and accuracy

C. Kirkegaard, A.V. Christiansen, E. Auken

    Publikation: Bidrag til bog/rapport/konferenceproceedingsKonferenceartikel i proceedingspeer review

    Resumé

    Modern airborne TEM surveys often produce extremely large datasets that can be very time consuming to invert using a full system forward model description. Often, approximate forward models are used providing very fast results at the expense of accuracy. We show how forward models of different precision can be combined in a versatile hybrid inversion, providing tunable accuracy and performance. Our study includes inversions of actual field data using different degrees of approximation. We show how this influences the resulting earth resistivity model, discuss the implications and provide performance metrics.

    OriginalsprogEngelsk
    TitelNear Surface 2011 - 17th EAGE European Meeting of Environmental and Engineering Geophysics
    ForlagEuropean Association of Geoscientists and Engineers
    ISBN (Trykt)978-90-73834-15-6
    DOI
    StatusUdgivet - 2011
    Begivenhed17th European Meeting of Environmental and Engineering Geophysics, Near Surface 2011 - Leicester, Storbritannien
    Varighed: 12 sep. 201114 sep. 2011

    Konference

    Konference17th European Meeting of Environmental and Engineering Geophysics, Near Surface 2011
    Land/OmrådeStorbritannien
    ByLeicester
    Periode12/09/1114/09/11

    Programområde

    • Programområde 2: Vandressourcer

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