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On the Short Period Terms in the UT1 and Those in the Polar Motion
Published online by Cambridge University Press: 27 June 2016
Abstract
Short period terms ranging from 0.3 to 6.0 yr. are resolved from 13.5 yr data of UT1 and polar motion on periodograms, considering the mutual interference effects caused by truncation of data. Beside principal terms known well, 26 month term is reconfirmed but any Chandlerian term is not found in UT1. Minor amplitude terms are found around 0.48, 0.86, 1.36, 1.58, 3, and 4 yr in UT1, and 1.12, 1.26, and 1.43 yr in polar motion.
- Type
- Research Article
- Information
- Symposium - International Astronomical Union , Volume 48: Rotation of the Earth , 1972 , pp. 58 - 60
- Copyright
- Copyright © Reidel 1972
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