用长序列重力观测资料对液核动力学效应的检验  

THE VERIFICTION OF LIQUID——CORE DYNAMIC EFFECT BY LONG SERIES OF OBSERVATION ON GRAVITY TIDE

作　　者：翦大西[1] 李辉[1] 胡延昌[1] 付兆珠 

机构地区：[1]国家地震局地震研究所

出　　处：《地壳形变与地震》1990年第3期84-89,共6页Crustal Deformation and Earthquake

摘　　要：本文分析了下关、弥渡、郫县、宝坻4个重力台站GS-15重力仪所测的长序列重力观测资料,并在莫洛金斯基液核动力效应理论的基础上,用实测结果检验了由于地球液核运动而产生在重力固体潮周日波上的共振响应。同时,对不同的地球模型做了某些比较分析和评估。计算结果表明:检验地球液核动力效应的一组指标数δ(O_1)—A(K_1),δ(ψ、),δ(Φ_1)等的结果是令人满意的,其中主要分波的精度优于0.2％,与地球共振频率最为接近的ψ_1,Φ_1波的精度也优于2％。文章最后给出了观测结果与地球模型比较的结果,In the paper, a long series of observation of four GS-15 gravimeters from Xiaguan, Midu, Pixan and Baodi gravity stations are analysed,and based on Molodensky theory of liquid-core dynamic effect,the resonant response in diurnal wave due to the movemint of liquidcore of the earth is verified by observation results and some comparative analysis and estimation to different earth model are made.Calculation shows it is satis-factory for a set of index numbers (δ(O_1)δ(K_1), δ(ψ_1), δ(ψ_1)and so on)to Verify the liquid-core dynamic effect and the precision of main wave are not more than 0.2% and the precision of ψ_1, φ_1 waves which close to resonant frequency are in 2% range.In the last, the results of comparison between observation reaults and diffenert earth mndel are presented.

关 键 词：重力观测 液核 动力学效应 固体潮 

分 类 号：P315.7[天文地球—地震学]