| 地震大地测量确定凹凸体研究进展与展望 |
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| 引用本文： | 许才军,王晓航,温扬茂,李伟.地震大地测量确定凹凸体研究进展与展望[J].武汉大学学报(信息科学版),2022,47(10):1701-1712. |
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| 作者姓名： | 许才军 王晓航 温扬茂 李伟 |
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| 作者单位： | 1.武汉大学测绘学院，湖北 武汉，430079 |
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| 基金项目： | 国家自然科学基金42074007国家自然科学基金42130101 |
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| 摘 要： | 介绍了凹凸体、障碍体及其震源模式相关概念，综述了地震大地测量确定凹凸体的研究进展，主要从介质结构分布（高强度异常体）、地震活动性分析和断层滑动特性三个方面探讨凹凸体确定的技术与方法，并分析了存在的问题。对活动断层凹凸体分布的精细确定研究进行了展望，今后的研究重点是开展大地测量数据联合反演确定凹凸体分布、联合大地测量与地震、地球物理数据确定凹凸体分布以及基于机器学习方法进行凹凸体分布确定。
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| 关 键 词： | 凹凸体 地震危险性分析 地震大地测量 联合反演 机器学习方法 |
| 收稿时间： | 2022-08-02 |
Progress and Prospects of Seismic Geodetic Determination of Asperities |
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| Affiliation: | 1.School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China2.Key Laboratory of Geophysical Geodesy, Ministry of Natural Resources, Wuhan University, Wuhan 430079, China3.Key Laboratory of Geospace Environment and Geodesy, Ministry of Education, Wuhan University, Wuhan 430079, China4.Faculty of Geomatics, Lanzhou Jiaotong University, Lanzhou 730070, China |
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| Abstract: | The study of asperities is of great importance for seismic hazard analysis. This paper introduces the concepts of asperities, barriers and their source models, and reviews the progress of research on the determination of asperities by seismic geodesy, mainly discusses the technique and method for determining asperities from the aspects of medium structure analysis (high-intensity anomalies), seismic activity analysis, the fault slip pattern, and the problems are analyzed. This paper also prospects the determination of the distribution of asperities on active faults, future researches will focus on joint inversion of geodetic data, joint geodetic and seismic geophysical data, and machine learning based methods to determinate the distribution of asperities. The study provides a strong theoretical basis for seismic safety evaluation. |
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