宁夏石嘴山和固原大地电场资料对比分析

英文篇名：CONTRASTIVE ANALYSIS OF GEOELECTRIC FIELD AT SHUIZUISHAN AND GUYUAN STATION IN NINGXIA
中文刊名：内陆地震
英文刊名：Inland Earthquake
作者：卫定军
英文作者：WEI Ding-jun1 ; 2(1.University of Science and Technology of China ; Hefei 230026 ; Anhui ; China ; 2.Earthquake Administration of Ningxia Province ; Yinchuan 75001 ; Ningxia ; China)
中文关键词：大地电场 ; 地电暴 ; 干扰变化 ; 频谱特征 ; 宁夏
英文关键词：Geoelectric field ; Geoelectric storm ; Spectrum characteristic ; Disturbance variation ; Ningxia
出版日期：2010-03-15
机构：中国科学技术大学;宁夏地震局;
年：2010
期：01
出版单位：内陆地震

摘要

处理分析了2008年1~11月宁夏石嘴山和固原地震台大地电场资料,对比研究了这两个台大地电场静日变化、干扰变化及它们的频谱特性等。石嘴山和固原地震台大地电场的变化特征:①具有明显的峰谷型静日变化形态,都含有12、24、8 h等3种主周期成份;②地电暴记录清晰可见,主要以变幅增大、时间同步为特征,但两台地电暴时频谱成份存在差异;③干扰变化特征均表现为短时突跳,变幅增大。
In this paper,the data of geoelectric field at Shuizuishan and Guyuan stations in Ningxia from Jan to Nov in 2008 have been processed and analyzed.Through the contrastive study about the characteristics such as magnetostatic and disturbed data of the geoelectric field at Shuizuishan and Guyuan station and their power spectrums,the conclusions have been obtained below.The magnetostatic daily variation has obvious peak-valley shape and contains 3 main periodic components of 12,24,8 hours.When the geoelectric storm occurs,there are clearly visible records,having the characteristics of increased change range and the same occurring time.But there are differences in frequency components at these two stations.The characteristics of the disturbed data appear as the sudden leap and amplitude increased.

引文

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