| 一种优化地震前兆观测点布设的方法 |
| |
| 引用本文： | 王炜,赵利飞,林命週,马钦忠,吴耿锋,吴绍春.一种优化地震前兆观测点布设的方法[J].地震,2006,26(4):22-28. |
| |
| 作者姓名： | 王炜 赵利飞 林命週 马钦忠 吴耿锋 吴绍春 |
| |
| 作者单位： | 上海市地震局,上海,200062;上海大学计算机工程与科学学院,上海,200072 |
| |
| 摘 要： | 使用基于主成分分析的优化地震前兆观测点方法, 用1998年数据对上海地区的9个水氡观测台站进行优化。 结果表明, 可以撤消3个信息量较小的台站观测, 剩下的6个台所含信息量占全部9个台站信息量的比例为93.0%。 表明在地震前兆观测中, 如果局部地区的地震前兆观测台站数据具有一定的相关性, 那么即使大量增加前兆观测台站的数量, 也并不意味着所获取的信息量会同步增多。 文中所用的优化方法对于指导地震前兆观测台站的优化具有一定意义。
|
| 关 键 词： | 主成分分析 特征向量 贡献率 优化台站 |
| 文章编号： | 1000-3274(2006)04-0022-07 |
| 收稿时间： | 2006-03-13 |
| 修稿时间： | 2006-05-15 |
A method to optimize earthquake precursor observatories |
| |
| WANG Wei,ZHAO Li-fei,LIN Ming-zhou,MA Qin-zhong,WU Geng-feng,WU Shao-chun.A method to optimize earthquake precursor observatories[J].Earthquake,2006,26(4):22-28. |
| |
| Authors: | WANG Wei ZHAO Li-fei LIN Ming-zhou MA Qin-zhong WU Geng-feng WU Shao-chun |
| |
| Institution: | 1. Earthquake Administration of Shanghai Municipality, Shanghai 200062, China;
2. Computer Institute of Shanghai University, Shanghai 200072, China |
| |
| Abstract: | Based on principal component analysis method,the authors optimized nine radon observatories in Shanghai area by using 1998 radon data.The result shows that three observatories that maintain little information can be canceled,because the rest six observatories covered 93.0% information of the total nine observatories.It means that an increase of observatory number does not always work,because the information gained from these observatories will not increase in accordance if the observatory data are correlative in the local area.The method to optimize observatory distribution is very important to direct the optimization of earthquake precursory observatories. |
| |
| Keywords: | Principal component analysis Eigenvector Contribution ratio Optimizing observatory |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《地震》浏览原始摘要信息 |
| 点击此处可从《地震》下载免费的PDF全文 |
|
