| 地震与地球旋转运动相关性的几点讨论 |
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| 引用本文： | 李愿军.地震与地球旋转运动相关性的几点讨论[J].防灾减灾工程学报,1986(2). |
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| 作者姓名： | 李愿军 |
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| 作者单位： | 国家地震局地震研究所 |
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| 摘 要： | 本文对地震的时、空、强特征进行研究,并与地球旋转运动进行对比,发现它们之间有这样一些相关规律:1.中国和欧洲地区的地震活动具有相同的年变化,并与地球自转加速度同步;2.全球M≥8级大震的月频分布曲线与日长(△P)曲线一致,但频度曲线超前一个月;3.南北半球M≥7级地震活动的逐月时序迭加具有高低潮的反向呼应关系;4.地震沿纬度分布状态表明,在北纬35°处和赤道偏南的纬度带上是两个地震活动高峰带.认为日地距离的变化使地球处于周期性的太阳引力场中,是地震活动出现规律性季节变化的主要原因.
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THE OVERALL ADJUSTMENT PROGRAMME FOR DYNAMIC QUASI-STABLE ADJUSTMENT |
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| Abstract: | The dynamic quasi-stable adjustment is a method which concerns the influence of crustal movement between two repetition surveys on the observed elevation difference. This method is more suitable to repetition data processing for crustal deformation mornitoring networks and repeating leveling networks covering a vast area. In this paper, the related formulas are derived for the overall adjustment programme, and the concrete forms of the supplementary matrix G~T and displacement weight matrix P_r are given. |
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