Rotation and Strain Instrument Performance Tests with Active Seismic Sources

Autor: David Sollberger, Johana Brokešová, Olivier Sebe, Pascal Edme, Gizem Izgi, Christian Veress, Patrick Paitz, Felix Bernauer, Piotr Bonkovsky, Basil Brunner, Katrin Behnen, Anna Kurzych, Frédéric Guattari, Joachim Wassermann, Jonas Igel, Stefanie Donner, Eva P. S. Eibl, Piotr Bobra, Stefan Buske, Heiner Igel
Rok vydání: 2020
Předmět:
Zdroj: Proc. EGU General Assembly 2020-Geophysical Research Abstracts
EGUsphere
DOI: 10.5194/egusphere-egu2020-4256
Popis: Interest in measuring seismic rotation and strain is growing in many areas of geophysical research. This results in a great need for reliable and field deployable instruments measuring ground rotation and strain. To further establish a high quality standard for rotation and strain measurements in seismology, researchers from the Ludwig-Maximilians University of Munich (LMU), the German Federal Institute for Geosciences and Natural Resources, the University of Potsdam and the ETH Zürich organized a comparative sensor test experiment which took place in November 2019 at the Geophysical Observatory of the LMU in Fürstenfeldbruck, Germany. More than 40 different sensors such as ring-laser and fiber optic gyroscopes, a Distributed Acoustic Sensing (DAS) cable and interrogator, liquid-based as well as mechanical rotation sensors were involved in addition to 12 classical broadbandseismometers and a 80 channel, 4Hz geophone chain. The experiment consisted of two parts: during the first part, the sensors were co-located in a huddle test recording self noise and signals from small, nearby explosions. In a second part, the sensors were distributed into the field in various array configurations recording active seismic signals generated by small amounts of explosive and a vibro-seis truck. This contribution presents details on the setup of the experiment and first results on sensor performance characteristics and signal similarities.
Databáze: OpenAIRE
Externí odkaz: