| 北京重力地球潮参数和重力仪力学特性的测定 |
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| 引用本文： | 郑金涵,刘克人,刘端法.北京重力地球潮参数和重力仪力学特性的测定[J].地球物理学报,1995,38(4):487-493. |
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| 作者姓名： | 郑金涵 刘克人 刘端法 |
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| 作者单位： | 国家地震局地球物理研究所, 北京 100081 |
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| 摘 要： | 根据北京白家疃测站８台ＧＥＯ潮汐重力仪对比观测的资料，采用标准线性体流变模型模拟重力仪及记录系统的力学特性，计算各台仪器的格值改正系数、主潮汐波的振幅衰减系数和相位滞后；确定北京重力地球潮的振幅因子δ和相让滞后为δ（Ｍ２）＝１．１７８４，δ（Ｏ１）＝１．１８０４，δ（Ｍ２）／δ（Ｏ１）＝０．９９８３，（Ｍ２）＝０．０７°，（Ｏ１）＝０．１０°．
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| 关 键 词： | 重力固体潮 相位滞后 振幅因子 仪器力学特性 |
| 收稿时间： | 1993-04-04 |
INVESTINGATION OF EARTH-TIDE AT BEIJING AND DYNAMIC CHARACTERISTICS OF INSTRUMENTS:COMPARATIVE OBSERVATION WITH GEO-GRAWMETERS |
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| ZHENG JIN-HAN, LIU KE-REN, LIU DUAN-FA.INVESTINGATION OF EARTH-TIDE AT BEIJING AND DYNAMIC CHARACTERISTICS OF INSTRUMENTS:COMPARATIVE OBSERVATION WITH GEO-GRAWMETERS[J].Chinese Journal of Geophysics,1995,38(4):487-493. |
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| Authors: | ZHENG JIN-HAN LIU KE-REN LIU DUAN-FA |
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| Institution: | Institute of Geophysics, State Seismological Bureau, Beijing 100081 |
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| Abstract: | Based on the record data synchronously observed at Beijing（Baijiatan station）with 8 sets of geodynamics gravimeters, adopting a rheological model with standard linear body to modelling mechanical characteristics of observation systems, The correction coefficients of scale values, the attenuation coefficients and the phase-lags ocrresponding to main tidal components for each gravimeter are calculated. The earthtidal amptitude factors δand phase lags at Beijing are evaluated.δ（Ｍ２）=1.1784,δ（Ｏ１）=1.1804,δ（Ｍ２）/δ（Ｏ１）= 0.9983, （Ｍ２）=-0.07, （Ｏ１）=0.10, which seem favourable to Melchior experience model; and highly agree with the modelcorrected with tidal loading from Schwlderski's global model and local model of nearChina sea. |
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| Keywords: | Earth tide Phase Lags Amptitude factors Rheological model |
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