Abstract—

This study is focused on the analysis of data of the long-term latitude observations and the Global Navigation Satellite System (GNSS). The latitude observations include small-amplitude periodic and random harmonics as noise components of different nature and duration. These harmonics are a source of valuable information on seismology, geodynamic processes, and Earth structure in the telescope vicinity. The value of observations carried out at a certain observatory is in their reliability, homogeneity, uniqueness, and long-term series. The latitude observations are reduced to build a diagram of temporal variations in the mean latitude of an observational site on a long-time interval. In this paper, we analyze a curve of the nonpolar oscillations (free of components induced by the pole motion) of the mean latitude. We compare the periodic components of secular variations in the mean latitude and the GNSS observations. Geodynamic parameters of the dynamics of the Earth’s crust relative to tectonic faults on the Tatarstan territory have been determined from the GNSS data; also, from the analysis of the astronomical latitude variations anomalously deviating from the predictive model, the correlation with seismic processes has been shown.

中文翻译：

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卫星导航系统的纬度观测和数据分析以确定地球动力学参数

摘要-

这项研究的重点是对长期纬度观测数据和全球导航卫星系统（GNSS）的数据进行分析。纬度观测结果包括小幅度的周期性谐波和随机谐波，它们是不同性质和持续时间的噪声分量。这些谐波是有关望远镜附近的地震学，地球动力学过程和地球结构的宝贵信息的来源。在某个天文台进行的观测的价值在于它们的可靠性，同质性，唯一性和长期序列。减少纬度观测值，以建立长时间间隔内观测站点平均纬度的时间变化图。在本文中，我们分析了平均纬度的非极性振荡（不含极运动引起的分量）的曲线。我们比较了平均纬度和GNSS观测值的长期变化的周期性分量。已经从GNSS数据中确定了tar斯坦领土上地壳相对于构造断层动力学的地球动力学参数。同样，通过对异常偏离预测模型的天文纬度变化的分析，也显示了与地震过程的相关性。