短周期月亮潮汐波的分析和地球Love数κ的解算  

Analysis of Short Period Terms in Earth Tides Caused by the Moon and the Determination of Love Number κ

作　　者：聂士忠[1] 王玉泰[2] 

机构地区：[1]石油大学物理科学与技术学院,山东东营257061 [2]济南大学信息科学与工程学院,山东济南250022

出　　处：《济南大学学报（自然科学版）》2004年第2期130-131,共2页Journal of University of Jinan(Science and Technology)

基　　金：山东省自然科学基金资助项目 (Y2 0 0 3A0 1)

摘　　要：分析了地球自转速率短周期变化的机制 ,利用最大熵谱估计方法对UT1时间序列进行了谱分析 ,证实存在与理论相符的月亮波Mm 和Mf 波。由幅值和位相比较稳定的Mm 波计算得到Love数为κ =0 2 99± 0 0 0 2 ,与固体潮的理论计算值比较接近。用天文方法确定地球Love数 。The theory of the Earth tides with short periods was summarized,and the UT1 time series was analysed.It was approved that there are some short period terms in UT1 time series expected by the theory of Earth tides.The Love number κ was determined from UT1 series.The calculated results from Mm wave were κ=0 229±0 002 and κ=0 286±0 003 from Mf wave.These results are close to Wahr's theory of Earth model.The accurate calculation of love number from astronomical observation is helpful to the foundation of Earth tides and the theoretical model of the Earth.

关 键 词：短周期 月亮 潮汐 LOVE数 

分 类 号：P183.5[天文地球—天文学]