节点文献

长春台体应变仪器观测到的地球基频球型振荡

EARTH FUNDAMENTAL SPHERICAL OSCILLATION OBSERVED BY THE BULK STRAIN OF CHANGCHUN SEISMIC STATION

推荐 CAJ下载
PDF下载
不支持迅雷等下载工具，请取消加速工具后下载。

【Author】 LIU Bing-bing1,YANG Yao-wen2,REN Jia3,JIANG Cui-rong3,FAN Jin-mei4(1.Earthquake Administration of Jilin Province,Jilin Changchun 130117,China;2.Lijiang Central Seismic Station,Yunnan Lijiang 674100,China;3.Zhangjiakou Central Seismic Station,Hebei Zhangjiakou 075000,China;4.Huailai Seismic Station,Hebei Huailai 075400,China)

【机构】吉林省地震局；云南省地震局丽江地震台；河北省地震局张家口中心地震台；河北省地震局怀来地震台；

【摘要】本文分析了2004年12月26日苏门答腊M9.0级大地震后5天的长春台体应变观测资料,利用功率谱密度估计方法,在没有对资料进行去固体潮处理的情况下,较准确地获得了大地震激发的基频球型振荡,并与地球初步参考模型(PREM)的理论自由振荡频率进行了对比,发现实测振荡频率与PREM预测的振荡频率基本符合。更多还原

【Abstract】 The purpose of this paper is to analyze the bulk strain observation data of Changchun Seismic Station at 5 days after a destructive earthquake of magnitude 9.0 in Sumatra on 26th Dec,2004.We utilize the estimate method of power spectrum density and comparatively accurately acquire fundamental spherical oscillation caused by violent earthquake without dealing with data on getting rid of earth tide.Furthermore we compare it with the theory of PREM--free oscillation frequency,and find out observed oscillation frequency basically accords with the oscillation frequency forecasted by PREM.更多还原

【关键词】体应变；苏门答腊9.0级大地震；地球自由振荡；球型振荡；
【Key words】 bulk strain； violent earthquake of M 9.0 in Sumatra； earth free oscillation； spherical oscillation；

【文献出处】东北地震研究 ,Seismological Research of Northeast China , 编辑部邮箱 ,2009年04期

【分类号】P315.63
【下载频次】23

知网节下载

节点文献中：

本文链接的文献网络图示:

本文的引文网络

节点文献