| 地球物理探测卫星数据分析处理技术与地震预测应用研究项目及研究进展 |
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| 作者姓名： | 申旭辉 黄建平 林剑 罗志才 乐会军 吴立新 张学民 崔静 |
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| 作者单位： | 1.应急管理部国家自然灾害防治研究院，北京1000852.华中科技大学物理学院引力中心，湖北武汉4300793.中国科学院地质与地球物理研究所，北京1000294.中南大学，湖南长沙4100835.中国地震局地震预测研究所，北京100036 |
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| 摘 要： | 地震监测预警和预测预报是当前地球科学及相关学科所面临的最艰巨的问题之一,是关系到人类社会安全与国计民生的亟待攻克的科学难题.为进一步提高地震预测科学研究水平,推进地震监测预测能力建设,我国于世纪之交提出了建立地震立体观测体系的战略发展思路,并希望突破三维地球物理场获取能力瓶颈,发展地球多圈层耦合模型,通过卫星观测获取全...
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| 关 键 词： | 张衡1号 地球物理探测卫星 地震预测应用 卫星数据处理分析 |
| 收稿时间： | 2021-11-24 |
Project plan and research on data analysis and processing technology of geophysical exploration satellite and application research of earthquake prediction |
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| Authors: | Shen Xuhui Huang Jianping Lin Jian Luo Zhicai Le Huijun Wu Lixin Zhang Xuemin Cui Jing |
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| Institution: | 1.National Institute of Natural Hazards, Ministry of Emergency Management of China, Beijing 100085, China2.Gravity Center, School of Physics, Huazhong University of Science and Technology, Hubei Wuhan 430079, China3.Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China4.Central South University, Hunan Changsha 410083, China5.Institute of Earthquake Forecasting, China Earthquake Administration, Beijing 100036, China |
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| Abstract: | Earthquake monitoring and prediction is one of the most difficult problems in earth science and related disciplines, and it is a scientific problem that concerns the safety of human society, national economy and people’s livelihood. In order to further improve the scientific research level of earthquake prediction and promote the construction of earthquake monitoring and prediction ability, the strategic development idea of three-dimensional seismic observation system was put forward in China at the turn of the century. It is hoped to break through the bottleneck of 3D geophysical field acquisition ability, develop the earth multi-layer coupling model, and obtain the earthquake case information of global large earthquakes through satellite observation, so as to effectively promote the scientific exploration of earthquake monitoring and prediction. As a space-based platform, geophysical satellite exploration has become a new and important direction in the scientific exploration of three-dimensional seismic monitoring and prediction. In February 2018, China’s first geophysical field satellite, electromagnetic monitoring and experimental satellite ZH1(01) was successfully launched into orbit and passed the in-orbit test. At present, the electromagnetic satellite data processing technology and the ionospheric modeling technology in China is close to the international parallel state. However, the gravity satellite data processing is still in the tracking research stage, the global geomagnetic field modeling is in the initial stage, and the multi-parameter comprehensive analysis of geophysical field coupled by multiple layers needs to be further studied. In view of the above scientific problems, the project has carried out researches on spaceborne electromagnetic field, ionospheric data processing and calibration technology, satellite load field data processing technology, global/regional geophysical field fine modeling technology, geophysical field multi-parameter comprehensive analysis and seismic anomaly identification technology. Through research, this project implements the corresponding algorithm and the module of research and development and the global geophysical field model is established. The main characteristics of earthquake cases library and sample library construct the satellite monitoring earthquake prediction application platform, complete the global and China’s earthquake cases accumulation, and predicting earthquake monitoring application demonstration in the Sichuan-Yunnan region and earthquake track inspection, demonstrate significant results were obtained in the application. The main achievements are as follows: three new technologies have been obtained: ① high-precision three-frequency beacon ionospheric inversion technology; ② VLF wave FDTD propagation model; ③ fine processing technology of satellite gravity gradiometry data. Three new methods were proposed: ① optimization processing method of high-precision magnetic field data; ② satellite magnetic disturbance signal extraction algorithm; ③ satellite multi-parameter comprehensive analysis method. Three new products were produced: ① global main magnetic field model. This model was successfully incorporated into IGRF2020.0, which is the first model for global geophysical field modeling in China; ② global three-dimensional ionospheric electron density model; ③ global time-varying gravity field model. One theory have been proposed: multi-source heterogeneous seismic anomaly information fusion and anomaly recognition. A new platform is developed: satellite seismic monitoring and prediction application platform. |
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| Keywords: | ZH1(01) geophysical exploration satellite application of earthquake prediction satellite data processing and analysis |
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