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Effects of Ground Motions on Amplitude Interferometry

Published online by Cambridge University Press:  02 August 2016

Peter L. Bender
Peter L. Bender*
Affiliation:
Joint Institute for Laboratory Astrophysics, Boulder, Colorado 80309

Abstract

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Some examples are given of types of ground motion which hs.ve been observed with seismic and geodetic instruments. In general, away from sources of man-made noise, the amplitudes of ground strains and tilts in the microseism band with periods of a few seconds normally are of the order of a few times 10-10. Strain and tilt tides give amplitudes of a few times 10-8, and long term average strain and tilt rates at relatively good sites may be roughly 10-7/yr. Superposed on such relatively long wavelength motions can be larger local pier motions, which are likely to be irregular. However, very high ground stability has been demonstrated at a few sites The limitations of ground motions on long term amplitude interferometer stability are serious if applications such as earth rotation and polar motion measurements are considered, but at shorter periods the environmental problems will be almost completely atmospheric.

Type
The Scientific Programme
Information
International Astronomical Union Colloquium , Volume 50: High Angular Resolution Stellar Interferometry , January 1979 , pp. 5-1 - 5-9
Copyright
Copyright © 1979

References

1) Latham, G. V. and Nowroozi, A.A., J. Geophys. Res., 73, 3945, 1968.Google Scholar
2) Murphy, A.J., Savino, J., Rynn, J.M.W. et al. , J Geophys. Res., 77, 5042, 1972.CrossRefGoogle Scholar
3) Zschau, J., “Prediction of storm surges from marine loading tilt measured inland from the sea,” Proc 8th Int. Symp. on Earth Tides, Bonn, 1977, in press.Google Scholar
4) Zschau, J., “Air pressure induced tilt in porous media,” Proc. 8th Int Symp. on Earth Tides, Bonn, 1977, in press.Google Scholar
5) Warburton, R.J. and Goodkind, J.M., Geophys. J R. astr. Soc. 48, 281, 1977.CrossRefGoogle Scholar
6) Huggett, G.R., Slater, L.E. and Pavlis, G., Geophys. Res. Lett. 3, 754, 1976.Google Scholar
7) Berger, J. and Wyatt, F., private communication, 1978.Google Scholar
8) Beavan, J. and Bilham, R., J. Geophys. Res. 82, 5699, 1977.Google Scholar
9) Berger, J. and Wyatt, F., Proc. Conf. on Tectonic Problems of the San Andreas Fault System, Kovach, R.K. and Nur, A., Eds., Geol. Sci., Stanford Univ. Publ. Vol. 13, p. 80, 1973.Google Scholar
10) Berger, J., Adv. Geophys. 16, 1, 1973.Google Scholar
11) Berger, J., in preparation, 1978.Google Scholar
12) Levine, J. and Hall, J.L., J. Geophys. Res. 77, 2595, 1972.CrossRefGoogle Scholar
13) Levine, J. and Harrison, J.C., J. Geophys. Res. 81, 2543, 1976.CrossRefGoogle Scholar
14) Levine, J., Geophys. J. R. astr. Soc. 54, 27, 1978.Google Scholar
15) Levine, J., private communication, 1978.Google Scholar
16) Berger, J. and Levine, J., J. Geophys. Res. 79, 1210, 1974.Google Scholar
17) Beavan, R.J. and Goulty, N.R., Geophys. J. R. astr. Soc. 48, 293, 1977 Google Scholar
18) Harrison, J.C. and Herbst, K., Geophys. Res. Lett. 4, 535, 1977.Google Scholar
19) Stolz, A. and Larden, D.R., J Geophys. Res., submitted,Google Scholar
20) Munk, W.H. and MacDonald, G.J.F., The Rotation of the Earth, Cambridge Univ. Press, London, 1960.Google Scholar
21) Farrell, W.E., Rev. Geophys. Space Phys. 10, 761, 1972.Google Scholar
22) Lisitzin, E., Sea Level Changes, Elsevier Pub. Co., Amsterdam, 1974.Google Scholar
23) Floyd, R.P., Manual for Setting Geodetic Bench Marks, National Geodetic Survey, Rockville, MD, 1978.Google Scholar
24) Honkasalo, T., in Geodeettinen laitos - The Finnish Geodetic Institute 1918–1968, Pub. No. 65 of the Finnish Geodetic Institute, Helsinki, 57, 1969.Google Scholar
25) Parm, T., in Proc. Second Int. Symp. on Deformation Measurements by Geodetic Methods, Int. Fed. of Surveyors, Bonn, 1978.Google Scholar
26)See additional articles in: Proc. Int. Symp. on High Precision Geodetic Length Measurements, Int. Assoc. of Geodesy, Helsinki, 1978.Google Scholar
27) Elsmore, B. and Ryle, M., Mon. Not. R. astr Soc. 174, 411, 1976.CrossRefGoogle Scholar