Earth rotation and ENSO events: Combined excitation of interannual LOD variations by multiscale atmospheric oscillations

Dawei Zheng; Xiaoli Ding; Yonghong Zhou; Yongqi Chen

doi:10.1016/S0921-8181(02)00176-5

Earth rotation and ENSO events: Combined excitation of interannual LOD variations by multiscale atmospheric oscillations

Dawei Zheng, Xiaoli Ding, Yonghong Zhou, Yongqi Chen

Research output: Journal article publication › Journal article › Academic research › peer-review

14 Citations (Scopus)

Abstract

Time series of the length of day characterizing the rate of Earth rotation, the atmospheric angular momentum and the Southern Oscillation Index from 1962 to 2000 are used to reexamine the relationships between the ENSO events and the changes in the length of day, as well as the global atmospheric angular momentum. Particular attention is given to the different effects of the 1982-1983 and 1997-1998 ENSO events on the variations of Earth rotation. The combined effects of multiscale atmospheric oscillations (seasonal, quasi-biennial and ENSO time scales) on the anomalous variations of the interannual rates of Earth rotation are revealed in this paper by studying the wavelet spectra of the data series.

Original language	English
Pages (from-to)	89-97
Number of pages	9
Journal	Global and Planetary Change
Volume	36
Issue number	1-2
DOIs	https://doi.org/10.1016/S0921-8181(02)00176-5
Publication status	Published - 1 Mar 2003

Keywords

Atmospheric angular momentum
ENSO
Variation of Earth rotation
Wavelet spectrum

ASJC Scopus subject areas

Earth-Surface Processes

More information

10.1016/S0921-8181(02)00176-5

Cite this

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T1 - Earth rotation and ENSO events: Combined excitation of interannual LOD variations by multiscale atmospheric oscillations

AU - Zheng, Dawei

AU - Ding, Xiaoli

AU - Zhou, Yonghong

AU - Chen, Yongqi

PY - 2003/3/1

Y1 - 2003/3/1

N2 - Time series of the length of day characterizing the rate of Earth rotation, the atmospheric angular momentum and the Southern Oscillation Index from 1962 to 2000 are used to reexamine the relationships between the ENSO events and the changes in the length of day, as well as the global atmospheric angular momentum. Particular attention is given to the different effects of the 1982-1983 and 1997-1998 ENSO events on the variations of Earth rotation. The combined effects of multiscale atmospheric oscillations (seasonal, quasi-biennial and ENSO time scales) on the anomalous variations of the interannual rates of Earth rotation are revealed in this paper by studying the wavelet spectra of the data series.

AB - Time series of the length of day characterizing the rate of Earth rotation, the atmospheric angular momentum and the Southern Oscillation Index from 1962 to 2000 are used to reexamine the relationships between the ENSO events and the changes in the length of day, as well as the global atmospheric angular momentum. Particular attention is given to the different effects of the 1982-1983 and 1997-1998 ENSO events on the variations of Earth rotation. The combined effects of multiscale atmospheric oscillations (seasonal, quasi-biennial and ENSO time scales) on the anomalous variations of the interannual rates of Earth rotation are revealed in this paper by studying the wavelet spectra of the data series.

KW - Atmospheric angular momentum

KW - ENSO

KW - Variation of Earth rotation

KW - Wavelet spectrum

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DO - 10.1016/S0921-8181(02)00176-5

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VL - 36

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EP - 97

JO - Global and Planetary Change

JF - Global and Planetary Change

IS - 1-2

ER -

Earth rotation and ENSO events: Combined excitation of interannual LOD variations by multiscale atmospheric oscillations

Abstract

Keywords

ASJC Scopus subject areas

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