地震地磁观测与研究2016，Vol.37Issue(1)：57-62,6.DOI:10.3969/j.issn.1003-3246.2016.01.009
河北昌黎地电阻率频谱特征分析
Spectrum characteristics of georesistivity at Changli Seismic Station in Hebei Province
摘要
Abstract
The spectrum characteristics of diurnal and annual variation have been identiifed by maximum entropy method,based on georesisticity data at Changli Seismic Station,Hebei Province. The study shows that the amplitude of the 24 h diural wave is the largest in georesistivity diural variation,followed in turn by the 12 h semidiural wave and 8 h periodic wave. Georesistivity diural variation is mainly affected by temperture and solid tide. The temperture arising can cause georesistivity to decline. The solid tide can cause disturbance of conifned water level,which leads to changing of georesistivity. Georesistivity has signiifcant annual period of higher in winter and lower in summer,which was controlled by rainfall. We can remove the effect of rainfall from georesistivity by convolution ifltering method.关键词
地电阻率/日变/年变/固体潮/降雨量Key words
georesistivity/diurnal variation/annual variation/solid tide/rainfall引用本文复制引用
张国苓,乔子云,贾立峰,王艳荣,佟鑫..河北昌黎地电阻率频谱特征分析[J].地震地磁观测与研究,2016,37(1):57-62,6.基金项目
由国家自然科学基金（41274079）；中国地震局青年震情跟踪工作任务 （）
