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How to Detect the Chandler and the Annual Wobble of the Earth with a Large Ring Laser Gyroscope

K. U. Schreiber, T. Klügel, J.-P. R. Wells, R. B. Hurst, and A. Gebauer
Phys. Rev. Lett. 107, 173904 – Published 20 October 2011
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Abstract

We demonstrate a 16m2 helium-neon ring laser gyroscope with sufficient sensitivity and stability to directly detect the Chandler wobble of the rotating Earth. The successful detection of both the Chandler and the annual wobble is verified by comparing the time series of the ring laser measurements against the “C04 series” of Earth rotation data from the International Earth Rotation and Reference System Service.

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  • Received 19 August 2011

DOI:https://doi.org/10.1103/PhysRevLett.107.173904

© 2011 American Physical Society

Synopsis

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Earth Wobble Rings True

Published 20 October 2011

A laser gyroscope measures extremely low-frequency wobbles in the Earth’s rotation.

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Authors & Affiliations

K. U. Schreiber1,2,*, T. Klügel2, J.-P. R. Wells3, R. B. Hurst3, and A. Gebauer1

  • 1Technische Universitaet Muenchen, Forschungseinrichtung Satellitengeodaesie, Geodätisches Observatorium Wettzell, 93444 Bad Kötzting, Germany
  • 2Bundesamt für Kartographie und Geodäsie, Geodätisches Observatorium Wettzell, 93444 Bad Kötzting, Germany
  • 3Department of Physics and Astronomy University of Canterbury, Private Bag 4800, Christchurch 8020, New Zealand

  • *schreiber@fs.wettzell.de

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Issue

Vol. 107, Iss. 17 — 21 October 2011

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