Rose Parade Seismology: Signatures of Floats and Bands on Optical Fiber

Creators: Wang, Xin; Williams, Ethan F.; Karrenbach, Martin; González Herráez, Miguel; Martins, Hugo Fidalgo; Zhan, Zhongwen

Abstract

The 2020 Rose Parade in Pasadena, California, was recorded by the Pasadena distributed acoustic sensing array, which utilizes the underground telecom fiber optic cables as sensors. The floats and bands generate remarkable broadband seismic signatures that can be captured at meters' resolution.

Additional Information

© 2020 Seismological Society of America. Manuscript received 26 February 2020; Published online 6 May 2020. The authors thank the City of Pasadena for contributing their optical fibers for our research. The authors thank OptaSense, University of Alcala, and Aragon Photonics for providing the distributed acoustic sensing (DAS) instruments, and the authors also thank Lisa LaFlame for installing the OptaSense 3rd Generation Distributed Acoustic Sensor system (ODH‐3). The authors would also like to thank Paul Lewis, Jeff Shaner, Monaly Josephy, Mary Howard, Greg Custer, and Mike Sumich for providing the floats' Global Positioning System (GPS) track records to help confirm our seismic interpretations. The authors also thank Yingdi Luo for providing photos of Rose Parade. This work was supported in part by the National Science Foundation (NSF) Faculty Early Career Development (CAREER) Program Award Number 1848166, the California Institute of Technology–Jet Propulsion Laboratory (Caltech‐JPL) President's and Director's Research and Development Fund (PDRDF). Miguel González Herráez and Hugo Fidalgo Martins acknowledge financial support from the Spanish Ministry of Economy and Competitiveness (MINECO; RTI2018‐097957‐B‐C31) and European Commission (Grant Numbers 722509 and 875302). Data and Resources: Raw distributed acoustic sensing (DAS) records used in this study are available upon request to the corresponding author. The information about Rose Parade is available at https://tournamentofroses.com/events/about-rose-parade. Pasadena Tournament of Roses Announces 2020 Float Awards is available at https://tournamentofroses.com/pasadena-tournament-of-roses-announces-2020-float-awards-presented-by-ftd/. Statistics and data of Tournament of Roses 2019 are available at https://tournamentofroses.com/wp-content/uploads/2019/10/2019Statistics_9.pdf. All websites were last accessed in February 2020.

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