Direct measurement of diurnal polar motion by ring laser gyroscopes

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dc.contributor.authorSchreiber, K.U.
dc.contributor.authorVelikoseltsev, A.
dc.contributor.authorKlügel, T.
dc.contributor.authorRothacher, M.
dc.contributor.authorStedman, G.E.
dc.contributor.authorWiltshire, D.L.
dc.date.accessioned2014-04-17T02:57:34Z
dc.date.available2014-04-17T02:57:34Z
dc.date.issued2004en
dc.description.abstractWe report the first direct measurements of the very small effect of forced diurnal polar motion, successfully observed on three of our large ring lasers, which now measure the instantaneous direction of Earth’s rotation axis to a precision of 1 part in 108 when averaged over a time interval of several hours. Ring laser gyroscopes provide a new viable technique for directly and continuously measuring the position of the instantaneous rotation axis of the Earth and the amplitudes of the Oppolzer modes. In contrast, the space geodetic techniques (VLBI, SLR, GPS, etc.) contain no information about the position of the instantaneous axis of rotation of the Earth, but are sensitive to the complete transformation matrix between the Earth-fixed and inertial reference frame. Further improvements of gyroscopes will provide a powerful new tool for studying the Earth’s interior.en
dc.identifier.citationSchreiber, K.U., Velikoseltsev, A., Klügel, T., Rothacher, M., Stedman, G.E., Wiltshire, D.L. (2004) Direct measurement of diurnal polar motion by ring laser gyroscopes. Journal of Geophysical Research: Solid Earth, 109(6), pp. B06405.en
dc.identifier.issn0148-0227
dc.identifier.urihttp://hdl.handle.net/10092/9130
dc.language.isoen
dc.publisherUniversity of Canterbury. Physics and Astronomyen
dc.rights.urihttps://hdl.handle.net/10092/17651en
dc.subject.anzsrcFields of Research::51 - Physical sciences::5102 - Atomic, molecular and optical physics::510202 - Lasers and quantum electronicsen
dc.subject.anzsrcField of Research::02 - Physical Sciences::0201 - Astronomical and Space Sciences::020108 - Planetary Science (excl. Extraterrestrial Geology)en
dc.subject.anzsrcField of Research::04 - Earth Sciences::0404 - Geophysics::040499 - Geophysics not elsewhere classifieden
dc.titleDirect measurement of diurnal polar motion by ring laser gyroscopesen
dc.typeJournal Article
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