Tailoring geophysical inversion for education and research with the open-source toolbox pyGIMLi

  • Tagungsort:

    Online

  • Datum:

    05.07.2022

  • Referent:

    Thomas Günther

    LIAG

  • Zeit:

    9:30 am

  • Quelle:

    Dr. Thomas Günther studierte an der TU Bergakademie Freiberg. Er promovierte 2004 mit dem Thema 3D-Inversion geoelektrischer Daten. Nach einer kurzen PostDoc-Zeit arbeitet er nun am Leibniz-Institut für Angewandte Geophysik in Hannover, wo er in der Sektion Geoelektrik und Elektromagnetik Gruppenleiter im Bereich Modellierung und Inversion aktiv ist. Dr. Günther hat sich seit seinem Studium der Entwicklung von Open-Source-Software verschrieben und forscht insbesondere an der Verknüpfung verschiedener geophysikalischer Methoden, vor allem im Bereich Grundwasser-Geophysik.

Abstract

Inversion of geophysical data is of crucial importance for understanding states and processes in the subsurface, particularly if different methods are involved. However, very often, specialized (sometimes black-box) software hinders both method combination and the understanding in geophysical education and reproducible research. We present the open-source toolbox pyGIMLi (Geophysical Inversion and Modelling Library in Python), not as inversion program, but as a versatile toolbox that can be particularly used for data fusion purposes. We demonstrate how the subsurface can be specifically controlled, by incorporating structural constraints (e.g. from seismics) and prior data (e.g. from boreholes). Furthermore, we show different kinds of coupling, by using structural, petrophysical or temporal joint inversion. The software is thus particularly suited for teaching purposes, but also as a basis to reproduce publication results according to the FAIR standards.