Natural Periodic Processes and Climate Variability in the Northern Hemisphere

被引：1

作者：

Babich, V. V. ^{[1
]}

Darin, A. V. ^{[1
]}

Smolyaninova, L. G. ^{[1
]}

Kalugin, I. A. ^{[1
]}

机构：

[1] Russian Acad Sci, Siberian Branch, Sobolev Inst Geol & Mineral, Novosibirsk 630090, Russia

来源：

DOKLADY EARTH SCIENCES | 2017年 / 477卷 / 02期

基金：

俄罗斯基础研究基金会;

关键词：

HOLOCENE; CYCLES;

D O I：

10.1134/S1028334X17120212

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Decomposition of five different paleoclimatic reconstructions of regional and hemispheric scale into different frequency periodic components has been performed for the extratropical zone of the Northern Hemisphere using spectral analysis methods (Hilbert-Huang transformation, wavelet transform, Fourier transform). The presence of similar to 1000, similar to 500, similar to 350, and similar to 200-year quasi-cyclic periodicities has been established, which determines climatic variability over the last 2-4 millennia. The presence of similar cyclicities, manifested in climatic and other geological processes, has been noted by many researchers and has been explained, as a rule, by changes in solar insolation. Thus, there is every reason to believe that the revealed quasi-periodic components in the climate variability of the extratropical zone of the Northern Hemisphere are natural, conditioned by natural cyclical phenomena and can serve as a basis for long-term predictive climatic constructions.

引用

页码：1470 / 1472

页数：3

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