Title

Vehicle induced seismic effects at a gravitational wave observatory

Document Type

Journal Article

Publisher

American Institute of Physics

Faculty

Faculty of Computing, Health and Science

School

School of Computer and Information Science

RAS ID

2311

Comments

Originally published as: Coward, D., Blair, D., Burman, R., & Zhao, C. (2003). Vehicle-induced seismic effects at a gravitational wave observatory. Review of scientific instruments, 74(11), 4846-4854. Original article available here

Abstract

The seismic signature of a vehicle traveling on the site of the Australian International Gravitational Observatory has been studied using a two-axis seismometer. The main laboratory strongly attenuated the vehicle-induced seismic noise across all frequencies. We find that the magnitude of the vehicle-induced seismic signal followed a d−γ" tabindex="0" id="MathJax-Element-1-Frame">d power law, with d the source–detector distance and γ≈1.7±0.4." tabindex="0" id="MathJax-Element-2-Frame">γ≈1.7±0.4. The results are indicative of strong attenuation of seismic disturbances and are consistent with other measurements of low-amplitude Rayleigh wave attenuation in similar sandy soil types, a highly desirable property for the site of a gravitational wave observatory. This analysis provides a tool for estimating the magnitude of vehicle-induced seismic noise at the laboratory buildings from more distant sources on and around the site.

DOI

10.1063/1.1614411

 
COinS
 

Link to publisher version (DOI)

10.1063/1.1614411