Time variations of the Earth's gravity field and crustal deformation due to the establishment of the Three Gorges Reservoir

Zhang, K.; Featherstone, Will; Bian, S.; Tao, B.

doi:10.1007/BF01090819

Access Status

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Authors

Zhang, K.

Featherstone, Will

Bian, S.

Tao, B.

Date

1996

Type

Journal Article

Metadata

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Citation

Zhang, K.F. and Featherstone, W.E. and Bian, S.F. and Tao, B.Z.. 1996. Time variations of the Earth's gravity field and crustal deformation due to the establishment of the Three Gorges Reservoir. Journal of Geodesy 70 (7): 440-449.

Source Title

Journal of Geodesy

DOI

10.1007/BF01090819

Faculty

Division of Resources and Environment

Department of Spatial Sciences

Remarks

Originally published in Journal of Geodesy 1996 70(7) pp.440-449.

URI

http://hdl.handle.net/20.500.11937/32380

Collection

Curtin Research Publications

Abstract

A method is developed with which to predict time variations of the Earth's gravity field and crustal deformation due to mass loading. Using this method, changes to the original geodetic datums can be estimated. This is applied to the Three Gorges area of China, due to the construction of the Yangtze river dam. Results indicate that the probable maximum crustal deformation and changes in gravity, elevation and deflection of the vertical will be 7.8mm, 4.7mgal, 19.0mm and 0.61 arc seconds, respectively. These changes are of importance for the establishment of monitoring operations both during and upon completion of the dam.