| DOI: | 10.5194/cp-11-509-2015
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| Scopus记录号: | 2-s2.0-84925606502
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| 论文题名: | A high-resolution δ18O record and Mediterranean climate variability |
| 作者: | Taricco C.; Vivaldo G.; Alessio S.; Rubinetti S.; Mancuso S.
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| 刊名: | Climate of the Past
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| ISSN: | 18149324
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| 出版年: | 2015
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| 卷: | 11, 期:3 | | 起始页码: | 509
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| 结束页码: | 522
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| 语种: | 英语
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| Scopus关键词: | climate oscillation
; climate variation
; data set
; drilling
; foraminifera
; Mediterranean environment
; Northern Hemisphere
; oxygen isotope
; reconstruction
; shallow water
; spectral analysis
; temperature anomaly
; time series
; Gallipoli
; Gulf of Taranto
; Ionian Sea
; Italy
; Lecce
; Mediterranean Sea
; Puglia
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| 英文摘要: | A high-resolution, well-dated foraminiferal δ18O record from a shallow-water core drilled from the Gallipoli Terrace in the Gulf of Taranto (Ionian Sea), previously measured over the last two millennia, has been extended to cover 707 BC-AD 1979. Spectral analysis of this series, performed using singular-spectrum analysis (SSA) and other classical and advanced methods, strengthens the results obtained analysing the shorter δ18O profile, detecting the same highly significant oscillations of about 600, 380, 170, 130 and 11 years, respectively explaining about 12, 7, 5, 2 and 2% of the time series total variance, plus a millennial trend (18% of the variance). The comparison with the results of multi-channel singular-spectrum analysis (MSSA) applied to a data set of 26 Northern Hemisphere (NH) temperature-proxy records shows that NH temperature anomalies share with our local record a long-term trend and a bicentennial (170-year period) cycle. These two variability modes, previously identified as temperature-driven, are the most powerful modes in the NH temperature data set. Both the long-term trends and the bicentennial oscillations, when reconstructed locally and hemispherically, show coherent phases. Furthermore, the corresponding local and hemispheric amplitudes are comparable if changes in the precipitation-evaporation balance of the Ionian sea, presumably associated with temperature changes, are taken into account. © Author(s) 2015. |
| 资助项目: | ETH, Eidgenössische Technische Hochschule Zürich
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/49160
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| Appears in Collections: | 气候变化与战略
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| Recommended Citation: | |
Taricco C.,Vivaldo G.,Alessio S.,et al. A high-resolution δ18O record and Mediterranean climate variability[J]. Climate of the Past,2015-01-01,11(3)
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