Chandler wobble: two more large phase jumps revealed

  title={Chandler wobble: two more large phase jumps revealed},
  author={Zinovy Malkin and Natalia Miller},
  journal={Earth, Planets and Space},
Investigations of the anomalies in the Earth rotation, in particular, the polar motion components, play an important role in our understanding of the processes that drive changes in the Earth’s surface, interior, atmosphere, and ocean. This paper is primarily aimed at investigation of the Chandler wobble (CW) at the whole available 163-year interval to search for the major CW amplitude and phase variations. First, the CW signal was extracted from the IERS (International Earth Rotation and… 

Figures from this paper


This paper is aimed at investigation of the Chandler wobble (CW) at the 164-year interval to search for the major CW amplitude and phase variations. The CW signal was extracted from the IERS polar

Chandler wobble in variations of the Pulkovo latitude for 170 years

The work studies the Chandler component of polar motion, obtained from variations in the Pulkovo latitude over 170 years (1840–2009). To extend the time series of variations in the Pulkovo latitude

Singular Spectrum Analysis in Astrometry and Geodynamics

The paper presents the possibilities of the Singular Spectrum Analyses on the examples of its application to several astrometric and geodynamic time series. The comparisons of results obtained by

Variable Chandler and Annual Wobbles in Earth’s Polar Motion During 1900–2015

The Chandler wobble (CW) and annual wobble (AW) are the two main components of polar motion, which are difficult to separate because of their very close periods. In the light of Fourier dictionary

Joint Analysis of the Polar Motion and Celestial Pole Offset Time Series

A joint analysis of the polar motion (PM) and celestial pole oset (CPO) time series along with time series of two geomagnetic indices, Kp and Dst, revealing possible connection between the Earth’s magnetic eld variations and CW and FCN excitation.

Manifestation of solar and geodynamic activity in the dynamics of the Earth’s rotation

The relationships between different manifestations of solar and geomagnetic activity and the structural peculiarities of the dynamics of the pole wobble and irregularities in the Earth’s rotation are

Chandler wobble: Stochastic and deterministic dynamics

We propose a model of the Earth’s torqueless precession, the “Chandler wobble,” as a self-oscillation driven by positive feedback between the wobble and the centrifugal deformation of the portion of

Analysis of Polar Motion Variations from 170-year Observation Series

This work is devoted to investigation of low frequency variations in Polar motion (PM). It has been shown that the main PM features can be effectively investigated using not only time series of the



Inversion of polar motion data: Chandler wobble, phase jumps, and geomagnetic jerks

We reconsider the analysis of the polar motion with a method totally different from the wavelet analysis used in previous papers. The total polar motion is represented as the sum of oscillating

On the double-peak spectrum of the Chandler wobble

Abstract.It is well known that two close spectral peaks with comparable amplitudes exist in the Chandler wobble (CW) band in the observed polar motion spectrum during the first half of the last

Linear drift and periodic variations observed in long time series of polar motion

Abstract. Two long time series were analysed: the C01 series of the International Earth Rotation Service and the pole series obtained by re-analysis of the classical astronomical observations using

Is Chandler Frequency Constant

The observed polar motion in the period 1860-1985 is analyzed in order to decide whether Chandler frequency was constant. It is shown that while the phase of annual wobble was very stable throughout

On the Variation of Latitude

IN connection with the interesting investigations of Dr. Chandler on the variation of latitude, permit me to suggest the desirability of calling attention to Maxwell's remarks on the same subject at

On the Rotation of the Earth

The attentive analysis of the observations of the latitudes shows that the movement of the terrestrial poles is compounded of two others, of which the periods are, the one of 430 days, and the other of twelve months.

Empiric models of the Earth’s free core nutation

Free core nutation (FCN) is the main factor that limits the accuracy of the modeling of the motion of Earth’s rotational axis in the celestial coordinate system. Several FCN models have been

On the latitude variations of the interval between 1830 and 1860

  • Doklady AN SSSR,
  • 1944

The Earth's variable rotation, geophysical causes and consequences