Interannual variations in the length of day and ENSO events in 1982-1983 and 1997-1998

Dawei Zheng; Yonghong Zhou; Xinhao Liao; Xiaoli Ding; Yongqi Chen; Jason Chao; Zhilin Li

doi:10.1007/BF02872292

Interannual variations in the length of day and ENSO events in 1982-1983 and 1997-1998

Dawei Zheng, Yonghong Zhou, Xinhao Liao, Xiaoli Ding, Yongqi Chen, Jason Chao, Zhilin Li

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

Abstract

The length of day series during the period of 1962.0 - 2000.0, the atmospheric angular momentum and the Southern Oscillation Index are adopted to analyze the relationships among the ENSO events that have occurred since 1960, the changes in the length of day and the atmospheric angular momentum. Attention is particularly given to the different effects of the 1982-1983 and 1997-1998 ENSO events on the variations of Earth rotation. The synthetic excitation effects of multi-scale atmospheric oscillations on the anomalous variations of the interannual rates of Earth rotation are revealed by means of the time-frequency spectrum of the wavelet transform.

Original language	English
Pages (from-to)	128-136
Number of pages	9
Journal	Science in China, Series A: Mathematics, Physics, Astronomy
Volume	44
Issue number	1
DOIs	https://doi.org/10.1007/BF02872292
Publication status	Published - 1 Jan 2001

Keywords

Atmospheric angular momentum
Change in length of day
ENSO events

ASJC Scopus subject areas

General

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10.1007/BF02872292

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abstract = "The length of day series during the period of 1962.0 - 2000.0, the atmospheric angular momentum and the Southern Oscillation Index are adopted to analyze the relationships among the ENSO events that have occurred since 1960, the changes in the length of day and the atmospheric angular momentum. Attention is particularly given to the different effects of the 1982-1983 and 1997-1998 ENSO events on the variations of Earth rotation. The synthetic excitation effects of multi-scale atmospheric oscillations on the anomalous variations of the interannual rates of Earth rotation are revealed by means of the time-frequency spectrum of the wavelet transform.",

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AU - Zheng, Dawei

AU - Zhou, Yonghong

AU - Liao, Xinhao

AU - Ding, Xiaoli

AU - Chen, Yongqi

AU - Chao, Jason

AU - Li, Zhilin

PY - 2001/1/1

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N2 - The length of day series during the period of 1962.0 - 2000.0, the atmospheric angular momentum and the Southern Oscillation Index are adopted to analyze the relationships among the ENSO events that have occurred since 1960, the changes in the length of day and the atmospheric angular momentum. Attention is particularly given to the different effects of the 1982-1983 and 1997-1998 ENSO events on the variations of Earth rotation. The synthetic excitation effects of multi-scale atmospheric oscillations on the anomalous variations of the interannual rates of Earth rotation are revealed by means of the time-frequency spectrum of the wavelet transform.

AB - The length of day series during the period of 1962.0 - 2000.0, the atmospheric angular momentum and the Southern Oscillation Index are adopted to analyze the relationships among the ENSO events that have occurred since 1960, the changes in the length of day and the atmospheric angular momentum. Attention is particularly given to the different effects of the 1982-1983 and 1997-1998 ENSO events on the variations of Earth rotation. The synthetic excitation effects of multi-scale atmospheric oscillations on the anomalous variations of the interannual rates of Earth rotation are revealed by means of the time-frequency spectrum of the wavelet transform.

KW - Atmospheric angular momentum

KW - Change in length of day

KW - ENSO events

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EP - 136

JO - Science in China, Series A: Mathematics

JF - Science in China, Series A: Mathematics

IS - 1

ER -

Interannual variations in the length of day and ENSO events in 1982-1983 and 1997-1998

Abstract

Keywords

ASJC Scopus subject areas

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