Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-019-05087-3 |
Crossover and peaks in the Pleistocene climate spectrum; understanding from simple ice age models | |
Ditlevsen, Peter1; Mitsui, Takahito2; Crucifix, Michel3 | |
2019-12-26 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | Denmark; Japan; Belgium |
英文摘要 | The power spectrum provides a compact representation of the scale dependence of the variability in time series. At multi-millennial time scales the spectrum of the Pleistocene climate is composed of a set of narrow band spectral modes attributed to the regularly varying changes in insolation from the astronomical change in Earth's orbit and rotation superimposed on a continuous background generally attributed to stochastic variations. Quantitative analyses of paleoclimatic records indicate that the continuous part comprises a dominant part of the variance. It exhibits a power-law dependency typical of stochastic, self-similar processes, but with a scale break at the frequency of glacial-interglacial cycles. Here we discuss possible origins of this scale break, the connection between the continuous background and the narrow bands, and the apparently modest spectral power above the continuum at these scales. We demonstrate that the observed scale break around 100 ka can have a variety of different origins and does not imply an internal time scale of correlation as implied by the simplest linear stochastic model. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000504464800002 |
WOS关键词 | COHERENCE RESONANCE ; VARIABILITY ; TRANSITION ; PACEMAKER ; SIGNAL ; NOISE |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/224314 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Univ Copenhagen, Niels Bohr Inst, Copenhagen, Denmark; 2.Univ Tokyo, Atmosphere & Ocean Res Inst, Kashiwa, Chiba, Japan; 3.UCLouvain, Earth & Life Inst, Louvain La Neuve, Belgium |
推荐引用方式 GB/T 7714 | Ditlevsen, Peter,Mitsui, Takahito,Crucifix, Michel. Crossover and peaks in the Pleistocene climate spectrum; understanding from simple ice age models[J]. CLIMATE DYNAMICS,2019. |
APA | Ditlevsen, Peter,Mitsui, Takahito,&Crucifix, Michel.(2019).Crossover and peaks in the Pleistocene climate spectrum; understanding from simple ice age models.CLIMATE DYNAMICS. |
MLA | Ditlevsen, Peter,et al."Crossover and peaks in the Pleistocene climate spectrum; understanding from simple ice age models".CLIMATE DYNAMICS (2019). |
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