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- Title
Tidal earth crust deformation measurements.
- Authors
Dontsov, Denis; Pöschel, Wolfgang; Schott, Walter; Kukowski, Nina; Jahr, Thomas; Schindler, Peter
- Abstract
This paper presents an application of the fiber coupled homodyne interferometers for the tide caused earth crust deformation measurements. Deformation of the earth crust mainly results from the tidal forces of sun and moon acting on the Earth, but also comes from seismic wave propagation or regional and local sources. The devices used for monitoring of such processes called strainmeters. The Geodynamic Observatory Moxa in Thuringia/Germany records and compares over the years the values gained by different stainmeters. The first laser interferometer was installed in the observatory in 2002. The new laser interferometer based setup, presented in this paper, allows direct monitoring of northsouth and east-west components of the earth deformation in the range of 1-2 μmat measuring distances of 26m.
- Subjects
SURFACE of the earth; DEFORMATION of surfaces; ANTHROPOGEOMORPHOLOGY; DEFORMATIONS (Mechanics); TIDAL forces (Mechanics)
- Publication
Technisches Messen, 2016, Vol 83, Issue 7/8, p439
- ISSN
0171-8096
- Publication type
Article
- DOI
10.1515/teme-2015-0014