中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Comparison of high frequency variations of the atmosphere and the polar motion

文献类型:期刊论文

作者Wang, BW; Gu, ZN; Jin, WJ
刊名CHINESE ASTRONOMY AND ASTROPHYSICS
出版日期2002
卷号26期号:1页码:88-96
关键词excitation function atmospheric angular momentum high-frequency oscillation
英文摘要The inferred excitation function X-m derived from EOP(IERS 97C04) polar motion series and the series X-p and X-ib(p) of the atmospheric angular momentum (AAM) provided by NCEP/NCAR for 1988-1999 are used to assess the contribution of AAM to the polar motion. Power spectra and complex wavelet analysis show that there are high peaks and similar structures in X-m and X-p, and their cross correlation coefficient is 0.75 (retrograde) and 0.60 (prograde). The peaks in X-ib(p) are lower. The phase of X-p is about one day ahead of X-m. The indications are that atmosphere variation is the main source of excitation of polar motion in the high-frequency range, and particularly so for the retrograde motion, while there may be other sources.
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Astronomy & Astrophysics
研究领域[WOS]Astronomy & Astrophysics
关键词[WOS]EARTHS
收录类别SCI
语种英语
WOS记录号WOS:000174388500011
源URL[http://119.78.226.72/handle/331011/28678]  
专题上海天文台_星系宇宙学重点实验室
作者单位Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
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GB/T 7714
Wang, BW,Gu, ZN,Jin, WJ. Comparison of high frequency variations of the atmosphere and the polar motion[J]. CHINESE ASTRONOMY AND ASTROPHYSICS,2002,26(1):88-96.
APA Wang, BW,Gu, ZN,&Jin, WJ.(2002).Comparison of high frequency variations of the atmosphere and the polar motion.CHINESE ASTRONOMY AND ASTROPHYSICS,26(1),88-96.
MLA Wang, BW,et al."Comparison of high frequency variations of the atmosphere and the polar motion".CHINESE ASTRONOMY AND ASTROPHYSICS 26.1(2002):88-96.

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来源:上海天文台

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