气候变化领域集成服务门户(CCPortal): Wavelet analysis reveals periodic oscillations in a 1700 year ice-core record from Guliya, China

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DOI	10.3189/172756406781812375
	Wavelet analysis reveals periodic oscillations in a 1700 year ice-core record from Guliya, China
	Yang, Meixue; Yao, Tandong; Gou, Xiaohua; Wang, Huijun; Neumann, Thomas
发表日期	2006
ISSN	0260-3055
起始页码	132
结束页码	+
卷号	43
英文摘要	Ice cores contribute important records of past climate changes. As one of the thickest ice caps in central Asia, the Guliya ice cap (35 degrees 17'N, 81 degrees 29'E) provides valuable information for this critical region about the past climate and environment changes. We used wavelet analysis to examine periodic temperature and precipitation oscillations over the past 1700 years recorded in the Guliya ice core. The results show non-linear oscillations in the ice-core records, with multiple timescales. Temperature records indicate persistent oscillations with periodicities of approximately 200, 150 and 70 years. Precipitation records show significant periodicities at 200, 100, 150 and 60 years. However, the amplitude modulation and frequency vary with time. Wavelet analysis can explore these time series in greater detail and furnish additional useful information.
关键词	ENSO TEMPERATURE MONSOON TRENDS
学科领域	Geology
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000245520800018
来源期刊	ANNALS OF GLACIOLOGY, VOL 43, 2006
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111459
推荐引用方式 GB/T 7714	Yang, Meixue,Yao, Tandong,Gou, Xiaohua,et al. Wavelet analysis reveals periodic oscillations in a 1700 year ice-core record from Guliya, China[J]. 中国科学院青藏高原研究所,2006,43.
APA	Yang, Meixue,Yao, Tandong,Gou, Xiaohua,Wang, Huijun,&Neumann, Thomas.(2006).Wavelet analysis reveals periodic oscillations in a 1700 year ice-core record from Guliya, China.ANNALS OF GLACIOLOGY, VOL 43, 2006,43.
MLA	Yang, Meixue,et al."Wavelet analysis reveals periodic oscillations in a 1700 year ice-core record from Guliya, China".ANNALS OF GLACIOLOGY, VOL 43, 2006 43(2006).