Studying of Deformation Processes by Two-Coordinate Laser Strainmeter

• 作者: Grigory I. Dolgikh
• 来源期刊: 清洁煤炭能国际期刊(英文)
• 学科: 数学
• 关键词: Two-coordinate LASER Strainmeter High Tides Earthquakes NATURAL OSCILLATIONS of the Earth NATURAL Os-cillations of Geoblocks NATURAL OSCILLATIONS of Bays Superficial and Internal Sea Waves QUASIPERIODIC OSCILLATIONS
• 年，卷（期）: 2013,（2）
• 页码范围: 21-23
• 页数: 3页
• 分类号: O1

摘要

The results of experimental data processing of a two-coordinate laser strainmeter are discussed. The two-coordinate laser strainmeter consists of two laser strainmeters which measuring shoulders are oriented along the lines “North- South” and “West-East”. Measurement accuracy of the earth's crust microdisplacements of these devices makes 0 to1 nm. Working frequency range is from 0 to 1000 Hz. Processing experimental data the main attention is paid to high tides, natural oscillations of the Earth, natural oscillations of geoblocks, superficial sea waves. It is established that after separate earthquakes the natural oscillations of regional geoblocks are strongly excited. Besides, it is revealed that quasiperiodic fluctuations of crust in the range of periods from 1 to 12 min. are caused by atmospheric processes. Besides, it is revealed that quasiperiodic oscillations of the earth's crust in the range of periods from 1 to 12 minutes are caused by atmospheric processes.