Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Science 21 July 1967:
Vol. 157. no. 3786, pp. 304 - 305
DOI: 10.1126/science.157.3786.304
Prev | Table of Contents | Next

Articles

Implications for Geophysics of the Precise Measurement of the Earth's Rotation

Gordon J. F. MacDonald 1

1 Institute for Defense Analysis, Arlington, Virginia 22202

A radio interferometer could yield an error on the order of 10-9 second at the semidiurnal frequency. With errors of this magnitude, yearly changes in the rate at which the earth's rotation is slowing down could be determined. The proposed interferometer could also yield significant improvements in the determination of the Love number k and its variation with frequency, and in the changes in angular momentum of the atmosphere for periods greater than 1 week.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Transcontinental Baselines and the Rotation of the Earth Measured by Radio Interferometry.
I. I. Shapiro, I. I. Shapiro, D. S. Robertson, C. A. Knight, C. C. Counselman III, A. E. E. Rogers, H. F. Hinteregger, S. Lippincott, A. R. Whitney, T. A. Clark, et al. (1974)
Science 186, 920-922
   Abstract »    PDF »
Radio Interferometry at One-Thousandth Second of Arc.
M. H. Cohen, D. L. Jauncey, K. I. Kellermann, and B. G. Clark (1968)
Science 162, 88-94
   PDF »
Radio Method for the Precise Measurement of the Rotation Period of the Earth.
T. Gold and T. Gold (1967)
Science 157, 302-304
   Abstract »    PDF »


To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)