Articles | Volume 9, issue 6
https://doi.org/10.5194/esurf-9-1459-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esurf-9-1459-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Vibration of natural rock arches and towers excited by helicopter-sourced infrasound
Department of Geology and Geophysics, University of Utah, Salt Lake
City, UT 84112, USA
Jeffrey R. Moore
Department of Geology and Geophysics, University of Utah, Salt Lake
City, UT 84112, USA
Paul R. Geimer
Department of Geology and Geophysics, University of Utah, Salt Lake
City, UT 84112, USA
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Short summary
We performed controlled helicopter flights near seven rock arches and towers in Utah, USA, and recorded how their natural vibrations changed as the helicopter performed different maneuvers. We found that arches and towers vibrate up to 1000 times faster during these flights compared to time periods just before the helicopter's approach. Our study provides data that can be used to predict long-term damage to culturally significant rock features from sustained helicopter flights over time.
We performed controlled helicopter flights near seven rock arches and towers in Utah, USA, and...