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前兆台站及观测测项的密度改正方法
引用本文:王炜,吴耿锋,张博锋,郑兆苾,刘辉,李生.前兆台站及观测测项的密度改正方法[J].地震,2004,24(3):29-34.
作者姓名:王炜  吴耿锋  张博锋  郑兆苾  刘辉  李生
作者单位:1. 上海市地震局,上海,200062
2. 上海大学,上海,200072
3. 安徽省地震局,安徽,合肥,230031
基金项目:"十五"科技部科技攻关项目(2001BA601B01 04 04)
摘    要:介绍了使用MYCIN不精确推理模型生成发震可信度分布图、可信度密度等值线图以及进行前兆测项的密度改正方法。通过对1989年大同6.1级和1998年张北6.2级地震的震前异常进行推理和比较,经过密度改正的可信度密度等值线图可以克服某些地区由于前兆测项密度较高而造成对地点判断的偏差,从而对未来发震地区的判断起到较好的效果。

关 键 词:地震前兆异常  地震预测  密度改正  可信度  MYCIN不精确推理
文章编号:1000-3274(2004)03-0029-06
修稿时间:2003年11月25

The correcting method of station number and items number of precursory observation
WANG Wei,WU Geng-feng,ZHANG Bo-feng,ZHENG Zhao-bi,LIU Hui,LI Sheng.The correcting method of station number and items number of precursory observation[J].Earthquake,2004,24(3):29-34.
Authors:WANG Wei  WU Geng-feng  ZHANG Bo-feng  ZHENG Zhao-bi  LIU Hui  LI Sheng
Institution:WANG Wei~1,WU Geng-feng~2,ZHANG Bo-feng~2,ZHENG Zhao-bi~3,LIU Hui~2,LI Sheng~2
Abstract:How to make the distribution contour of creditability factor and density of earthquake occurrence using MYCIN inexact inference method and how to make density correction for precursory observation items are introduced in this paper. By means of the inference and analysis for Datong earthquake M_S 6.1 occurred in 1989 and Zhangbei earthquake M_S 6.2 occurred in 1998 the corrected creditability density distribution contour can correct mistake in estimating location of future earthquakes due to higher precursory density in some areas. The correcting method for precursory item density has good effect.
Keywords:Density correction  MYCIN inexact inference  Creditability factor
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