EGU2020-16008, updated on 10 Jan 2023
https://doi.org/10.5194/egusphere-egu2020-16008
EGU General Assembly 2020
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

UAS magnetics as a non-invasive exploration technology

Yuleika Madriz, Robert Zimmermann, Junaidh Shaik Fareedh, Sandra Lorenz, and Richard Gloaguen
Yuleika Madriz et al.
  • Helmholtz-Zentrum Dresden-Rossendorf, Helmholtz Institute Freiberg for Resource Technology, Freiberg, Germany (y.madriz-diaz@hzdr.de)

The growing demand for innovative and sustainable exploration technologies is boosting opportunities for non-invasive geophysical surveys using unmanned aerial systems (UASs). During the last few years lightweight magnetometers have been increasingly developed for their use on UASs. Aeromagnetic surveys can provide a rapid and cost-effective technology to improve the detection of shallow targets and to delineate magnetite-pyrrhotite-rich mineralizations. With low altitude flights and tight flight lines, magnetometers lifted by rotary wing UAS systems can deliver high resolution maps in small-to-medium scale areas (<100 sq.km). We propose an adaptive workflow for aeromagnetic survey acquisitions by using multi-copters that in combination with a programmed processing tool can efficiently achieve valid observations and reliable maps. Results suggest that minimizing and compensating for the magnetometers attitude changes during flight as well as the removal of temporal variations plays an important role to avoid small anomalies to go undetected. For this study we present a comprehensive data set where UAS aeromagnetic surveys aids to overcome the scale gap between ground and airborne magnetics in potentially hazardous environments where UAS have operational advantage over traditional techniques.

How to cite: Madriz, Y., Zimmermann, R., Shaik Fareedh, J., Lorenz, S., and Gloaguen, R.: UAS magnetics as a non-invasive exploration technology, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-16008, https://doi.org/10.5194/egusphere-egu2020-16008, 2020.