A borehole trajectory inversion scheme to adjust the measurement geometry for 3D travel-time tomography on glaciers

Hellmann, Sebastian; Grab, Melchior; Patzer, Cedric; Bauder, Andreas; Maurer, Hansruedi

doi:https://doi.org/10.5194/se-14-805-2023

Articles | Volume 14, issue 7

https://doi.org/10.5194/se-14-805-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/se-14-805-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 14, issue 7

Research article

|

28 Jul 2023

Research article |

| 28 Jul 2023

A borehole trajectory inversion scheme to adjust the measurement geometry for 3D travel-time tomography on glaciers

Sebastian Hellmann, Melchior Grab, Cedric Patzer, Andreas Bauder, and Hansruedi Maurer

Data sets

Field and Synthetic Data for a Combined 3D~Velocity and Borehole Trajectory Inversion Algorithm S. Hellmann https://doi.org/10.3929/ethz-b-000541813

Video supplement

A Borehole Trajectory Inversion Scheme to Adjust the Measurement Geometry for 3D Travel Time Tomography on Glaciers - Video Supplement S. Hellmann https://doi.org/10.3929/ethz-b-000541812

Short summary

Acoustic waves are suitable to analyse the physical properties of the subsurface. For this purpose, boreholes are quite useful to deploy a source and receivers in the target area to get a comprehensive high-resolution dataset. However, when conducting such experiments in a subsurface such as glaciers that continuously move, the boreholes get deformed. In our study, we therefore developed a method that allows an analysis of the ice while considering deformations.