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GU MEKGLIN, LUO MINGJIN, SUI JIANSHEcom sh advance. 1986: HARMONIC ANALYSIS OF STRAIN TIDAL DATA OBSERVED BY A BOREHOLE STRAINMETER OF CAPACITIVE DISPLACEMENT TYPE AT THE SHESHAN STATION, SHANGHAI CITY. Acta Seismologica Sinica, 8(2): 197-210.
Citation: GU MEKGLIN, LUO MINGJIN, SUI JIANSHEcom sh advance. 1986: HARMONIC ANALYSIS OF STRAIN TIDAL DATA OBSERVED BY A BOREHOLE STRAINMETER OF CAPACITIVE DISPLACEMENT TYPE AT THE SHESHAN STATION, SHANGHAI CITY. Acta Seismologica Sinica, 8(2): 197-210.
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HARMONIC ANALYSIS OF STRAIN TIDAL DATA OBSERVED BY A BOREHOLE STRAINMETER OF CAPACITIVE DISPLACEMENT TYPE AT THE SHESHAN STATION, SHANGHAI CITY

  • Seismological Bureau of Hehan Peovince

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  • Published Date: August 31, 2011
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    • Abstract
  • The strain tidal data observed by a YRZ-2 bcrehole strainmeter of capacitive displacement type at the Sheshan Station in Shanghai City wore processed by the method of venedikov harmonic analysis without and with correction of ocean tide loads respectively. Results showed that: 1) the love number l2 of several main semidiurnal tides was close to the result calculated on the basis of the Gutenberg-Bullen earth model A. 2) The love number l2 of several diurnal tides was much smaller, than the one of semidiurnal tides. This was probably caused by the frequency response characteristic of the whole measuring system and the coupling state ibetween the sensor and the rock stratum. 3) In Shanghai the strain effect of ocean tide loads approached the direct effect of tide-generating force, and after correction of ocean tide loads the accuracy of calculation was distinctly improved.
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    • References (1)
  • [1] 池顺良,压容式钻孔应变仪的初步试验结果,地震学报,4, 98——103, 1982.

    [2] 王龙甫,弹性力学,科学出版社,1978.

    [3] Melchoir, P, The Tides of the Planet Earth, Pergamon Press,1978.

    [4] Farrell, W. F., Deformation of the Earth by Surface Loads, Rev,Geopleys. Space Phys. 10, 761——792,1972.

    [5] 许厚泽、陈振邦、杨怀冰,海尖潮汐对重力潮汐观测的影响,地球物理学报,25,120——128,1982.

    [6] 毛伟建,地球表面质量负荷的静态响应,地球物理学报,27,74——83,1984.

    [7] 北京大学地球物理系,重力与固体潮教程,地震出版社,1982.

    [1] 池顺良,压容式钻孔应变仪的初步试验结果,地震学报,4, 98——103, 1982.

    [2] 王龙甫,弹性力学,科学出版社,1978.

    [3] Melchoir, P, The Tides of the Planet Earth, Pergamon Press,1978.

    [4] Farrell, W. F., Deformation of the Earth by Surface Loads, Rev,Geopleys. Space Phys. 10, 761——792,1972.

    [5] 许厚泽、陈振邦、杨怀冰,海尖潮汐对重力潮汐观测的影响,地球物理学报,25,120——128,1982.

    [6] 毛伟建,地球表面质量负荷的静态响应,地球物理学报,27,74——83,1984.

    [7] 北京大学地球物理系,重力与固体潮教程,地震出版社,1982.
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