极移

刚体地球CIP轴的极移和岁差章动

Polar migration and nutation of CIP axis of rigid earth

极移运动轨迹是是椭圆，短半轴（b）与长半轴（a）之比为0.86；

The orbit of polar movement is ellipse .

用极移数据直接测算钱德勒摆动Q值

Specification of Q for Chandler Wobble Directly from Polar Motion Data

历史上的每一次极移都与行星x的过境有着关联。

Every pole shift , historically , has been associated with a passage of Planet X.

Chandler极移的振幅、周期和位相的变化

The variation on the amplitude , period and phase of the chandler 's polar motion

由此对CIP轴进行了理论定义，并给出了其极移、岁差和章动的动力学方程。

Therefore , the theoretical definition of CIP and its dynamical equation on polar motion and precession-nutation have been given .

其中，大气在周年尺度上对极移X分量的贡献为16%，对Y分量的贡献为43%；在半年尺度上对极移X分量的贡献为9%，对Y分量的贡献为30%。

On annual time scale , the contributions to X and Y components of polar motion are16 % and43 % , respectively , while on semi annual time scale , the contributions are9 % and30 % .

根据地球自由核章动在周日重力潮汐观测中的共振效应确定了自由核章动的复本征周期和品质因子Q值，研究了极移重力效应；

The complex eigen period period and Q value of the FCN are evaluated based on the resonance observed in the diurnal tidal gravity , the gravity change due to the polar motion is also studied .

而同一个信号在不同的时期强度相差悬殊。Chandler极移的振幅、周期和位相的变化

The signal amplitude is quite different in the different period . THE VARIATION ON THE AMPLITUDE , PERIOD AND PHASE OF THE CH AND LER 'S POLAR MOTION

日长变化是表征地球自转运动的一个重要参数，它与极移、岁差和章动统称为地球定向参数（EOP）。

Length of Day ( LOD ) change is an important parameter which reflects the earth rotation . LOD change 、 Polar Motion ( PM )、 Precession and Nutation are called Earth Orientation Parameters ( EOP ) .

然而这些数据是在地固坐标系中给出的，因此其中的全球电离层TEC图像数据的变化必然会受到地球自转、极移等因素的影响。

But the data of the file provide with the Geographic Frame Coordinate System , so the change of the Global Total Electron Content ( IGTEC ) maps are certainly influenced by the factors of the earth rotation and the earth pole moving etc.

通过对卫星轨道运动方程积分30min，可知由摄动力模型的简化、积分器和忽略极移影响等因素引起的拟合误差分别为0.827m，0.224m和0.025m。

Min , it can be found that the orbit fitting error due to the simplified force model , the numerical integration method and the neglect of the polar motion are respectively 0.827 ? m , 0.224 ? m and 0.025 ?

全球水分布对极移的激发&综述与基本理论

The Excitation Effects of Water Distribution on Polar Motion-Review and Theory

利用自回归模型检测地球极移重力效应

Detection of gravitational effect of polar motion by use of auto-regression model

极移振幅主要周期分量的时变特征

Time - variation of periodic components of polar motion amplitude

你曾经指出在极移之后莫斯科将会沉没到水下。

You spoke-Moscow will be shipped under water after shift .

地震位移场对极移的激发

On the excitation of earthquake displacement field to polar motion

极移对板块构造的影响

On the influence of polar shift upon tectonic plate boundaries

测定极移的各种天文观测技术的相互比较

Comparison between the polar coordinates determined by different observational techniques

极移与重力异常变化的关系

The Relation of the pole Motion and the Gravity Abnormality

液核地球极移和章动理论模型的改进

A Theoretical Improvement on Wobble and Nutation of Fluid Core Earth Model

弹性地球极移和章动的理论研究

Theoretical research on wobble and nutation of elastic earth

周年极移与旱涝灾害

The annual wobble of polar motion and the disasters of droughts and waterloggings

大气激发和观测极移之间的转换变化分析

Analyses on the Transfer Changes Between the Atmospheric Excitation and the Polar Motion

极移对地面重力及大地水准面的影响

The effect on the earth surface 's gravity and geoid by polar motion

人们会在极移之前加紧（领袖选举）吗？

Will people step up ahead of the shift ?

极移序列系统差的探讨

Study on systematic error between two polar motion series

但或许你们某些人并不清楚是什麽导致了极移。

But some of you might not have found what causes these pole shifts .

大气对极移的非季节性激发贡献

Contributions of atmospheric excitation to nonseasonal polar motion

极移振幅和相位的时-频域统计分析

A statistical analysis of the amplitude of earth polar shift in time frequency domain