Abstract
A simple statistical approach has been applied to the repeated electro-optical distance measurements (EDM) of 1,358 lines in the Tohoku district of Japan to obtain knowledge about the precision of EDM and the possible accumulation of strain. The average time interval between measurements is about seven or eight years. It is shown that the whole data of the difference between distance measurements repeated over a given lineδD are interpreted in terms of EDM errors comprising distance proportional systematic errors and standard errors expressed by the usual form\(\sqrt {\alpha ^2 + \beta ^2 D^2 } \). The rate of horizontal deformation must therefore be much smaller than the strain rates of about 0.7 ∼ 0.8 ppm over 7 to 8 years which have been hitherto expected.
Similar content being viewed by others
References
Bibby H.W. and R.I. Walcott (1977). Earth deformation and triangulation in New Zealand, New Zealand Surveyor, 28, 741–762.
Brunner F.K. and R. Coleman (1989). Strain effects near Palmdale associated with the San Fernando Earthquake(1971), J. Geophys. Res., 94, B5, 5651–5658.
Fraser C.S.(1984). The turbulent transfer model applied to geodetic measurements, The Canadian Surveyor, 38, 2, 79–90.
Fujii Y., K. Sugita and K. Nakane (1986 a). Earth's horizontal strain in the north-east Japan (I) -Method of analysis- (in Japanese), J. Geod. Soc. Japan, 32, 1, 32–41.
Fujii Y., K. Sugita and K. Nakane (1986 b). Earth's horizontal strain in the north-east Japan (II) -Results of analysis- (in Japanese), J. Geod. Soc. Japan, 32, 1, 43–55.
Geographical Survey Institute (1987a). Horizontal Strain in Japan, 1985-1883 (in Japanese).
Geographical Survey Institute (1987b). Crustal movement in the Tohoku district (in Japanese), Rep. Coord. Comm. Earthq. Predict., 38, 81–103.
Geographical Survey Institute (1989). Horizontal crustal movements in the Tohoku region (in Japanese), Rep. Coord. Comm. Earthq. Predict., 42, 43–52.
Geographical Survey Institute (1991). Horizontal strain in the Tohoku district (in Japanese), Rep. Coord. Comm. Earthq. Predict., 46, 35–38.
Harada T.(1983). Crustal strains expressed with their standard deviations in the improved universal program (PAG-U) (in Japanese), J. Geod. Soc. Japan, 29, 124–129.
Mizuno H.(1985a). Leveling results in the Tokai region and the estimation of the accuracy of leveling based on them, Earthq. Predict. Res., 3, 425–440.
Mizuno H.(1985b). Stochastic characteristics of vertical movements of the ground as revealed by repeated geodetic leveling, J. Geod. Soc. Japan, 31, 46–58.
Mizuno H.(1988). A study of random vertical displacements and estimates of the accuracy of leveling based on weekly measurements, manuscripta geodaetica, 13, 275–289.
Mizuno H.(1990). Comparative results of repeated distance measurements, Proceedings of International Association of Geodesy Symposia 101, Global and Regional Geodynamics, 125th Anniversary General Meeting of IAG, Edinburgh, 1989, edited by P. Vyskocil, C. Reigber and P.A. Cross. Springer, 1990, 285–292.
Nakane K. and Y. Fujii (1982). Horizontal crustal movement in Kanto-Tokai district (VII) -Result of calculated earth strains-(in Japanese), J. Geod. Soc. Japan, 28, 3, 152–161.
Prescott W.H., J.C. Savage and W.T. Kinoshita (1979). Strain accumulation rates in the western United States between 1970 and 1978, J. Geophys. Res., 84, B10, 5423–5435.
Savage J.C. and W.H. Prescott (1973). Precision of geodolite distance measurements for determining fault movements, J. Geophys. Res., 78, 6001–6008.
Savage J.C., W.H. Prescott, M.Lisowski and N. King (1979). Geodolite measurements of deformation near Hollister, California, 1971–1978, J. Geophys. Res., 84, B13, 7599–7615.
Savage J.C. and M. Lisowski (1991), Strain accumulation along the Denali fault at the Nenana River and Delta River Crossing, Alaska, J. Geophys. Res., 96, B9, 14,481–14,492.
Savage J.C., M.Lisowski and W.H. Prescott (1991), Strain accumulation in western Washington, J. Geophys. Res., 96, B9, 14,493–14,507.
Savage J.C., M. Lisowski and W.H. Prescott (1992). Strain accumulation across the Wasatch fault near Ogden, Utah, J. Geophys. Res., 97, B2, 2071–2083.
Author information
Authors and Affiliations
Additional information
An erratum to this article is available at http://dx.doi.org/10.1007/BF00807993.
Rights and permissions
About this article
Cite this article
Mizuno, H. Horizontal strain and precision of EDM from repeated surveys of the Precise Geodetic Net of Japan. Bulletin Géodésique 68, 137–150 (1994). https://doi.org/10.1007/BF00808287
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00808287