| 数字前兆观测地震异常短临特征的初步研究 |
| |
| 引用本文： | 田山,汪翠枝,李君英,庞群英,马骥,王建国.数字前兆观测地震异常短临特征的初步研究[J].地震地磁观测与研究,2009,30(2):57-67. |
| |
| 作者姓名： | 田山 汪翠枝 李君英 庞群英 马骥 王建国 |
| |
| 作者单位： | 中国天津,300201,天津市地震局 |
| |
| 基金项目： | 天津市科技支撑计划重点项目 |
| |
| 摘 要： | 以高频序列分析处理方法，对2001年以来首都圈及外围部分地区的数字化前兆观测资料进行处理分析。所采用的数字前兆分析方法主要有两种：①原始图像变化形态研究，观察分析图像的突变、潮汐畸变、振荡、脉冲等微动态变化特征；②通过滤波等方法研究提取数字前兆资料的高频信息在地震前后的变化特征。并结合首都圈地区ML4．5以上地震，对数字化前兆的短临特征进行研究。
|
| 关 键 词： | 数字前兆观测 短临前兆 异常特征 滤波分析 潮汐畸变 |
Primary study on the earthquake short-impending anomalous characteristic of digitalized precursory observation |
| |
| Tian Shan,Wang Cuizhi,Li Junying,Pang Qunying,Ma Ji,Wang Jianguo.Primary study on the earthquake short-impending anomalous characteristic of digitalized precursory observation[J].Seismological and Geomagnetic Observation and Research,2009,30(2):57-67. |
| |
| Authors: | Tian Shan Wang Cuizhi Li Junying Pang Qunying Ma Ji Wang Jianguo |
| |
| Institution: | (Earthquake Administration of Tianjin Municipality, Tianjin 300201, China) |
| |
| Abstract: | In this paper, the digital precursor＇s observational data of Capital area and surrounding area since 2001 were processed and analyzed with the high frequency sequence analysis method. Two kind of digital precursors analysis method were adopted： ①primitive image variations study, analyzing the tiny dynamic variation characteristics, such as mutation on image, tidal distortion, oscillate, pulse; ②filtering method study, withdrawing high frequency information before and after earthquake from digital precursors observational data. Using the earthquakes with magnitude ML≥4.5 in Capital area, the short-impending characteristic of digital precursor observations are studied. |
| |
| Keywords: | digitalized precursors observation short-impending anomalous characteristic filtering analysis tidal distortion |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
