DOI: 10.5194/cp-15-53-2019
Scopus记录号: 2-s2.0-85059940971
论文题名: Pollen-based temperature and precipitation changes in the Ohrid Basin (western Balkans) between 160 and 70 ka
作者: Sinopoli G. ; Peyron O. ; Masi A. ; Holtvoeth J. ; Francke A. ; Wagner B. ; Sadori L.
刊名: Climate of the Past
ISSN: 18149324
出版年: 2019
卷: 15, 期: 1 起始页码: 53
结束页码: 71
语种: 英语
Scopus关键词: climate variation
; Eemian
; marine isotope stage
; paleoclimate
; pollen
; precipitation (climatology)
; temperature
; Atlantic Ocean
; Atlantic Ocean (North)
; Balkans
; Lake Ohrid
; Southern Europe
英文摘要: Our study aims to reconstruct climate changes that occurred at Lake Ohrid (south-western Balkan Peninsula), the oldest extant lake in Europe, between 160 and 70 ka (covering part of marine isotope stage 6, MIS 6; all of MIS 5; and the beginning of MIS 4). A multi-method approach, including the "Modern Analog Technique" and the "Weighted Averaging Partial Least-Squares Regression", is applied to the high-resolution pollen sequence of the DEEP site, collected from the central part of Lake Ohrid, to provide quantitative estimates of climate and bioclimate parameters. This allows us to document climatic change during the key periods of MIS 6 and MIS 5 in southern Europe, a region where accurate climate reconstructions are still lacking for this time interval. Our results for the penultimate glacial show cold and dry conditions, while the onset of the "last interglacial" is characterized by wet and warm conditions, with temperatures higher than today (by ca. 2 ĝ C). The Eemian also shows the well-known climatic tri-partition in the Balkans, with an initial pre-temperate phase of abrupt warming (128-121 ka), a central temperate phase with decreasing temperatures associated with wet conditions (121-118 ka), followed by a post-temperate phase of progressive change towards cold and dry conditions (118-112 ka). After the Eemian, an alternation of four warm/wet periods with cold/dry ones, likely related to the succession of Greenland stadials and cold events known from the North Atlantic, occurred. The observed pattern is also consistent with hydrological and isotopic data from the central Mediterranean. The Lake Ohrid climate reconstruction shows greater similarity with climate patterns inferred from northern European pollen records than with southern European ones, which is probably due to its intermediate position and the mountainous setting. However, this hypothesis needs further testing as very few climate reconstructions are available for southern Europe for this key time period.. © Author(s) 2019. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122255
Appears in Collections: 气候变化事实与影响
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作者单位: Dipartimento di Biologia Ambientale, Sapienza University of Rome, Rome, Italy; Dipartimento di Scienze della Terra, Sapienza University of Rome, Rome, Italy; Institut des Sciences de l'Evolution de Montpellier, University of Montpellier, CNRS, IRD, EPHE, Montpellier, France; Organic Geochemistry Unit, School of Chemistry, University of Bristol, Bristol, United Kingdom; Institute of Geology and Mineralogy, University of Cologne, Cologne, Germany; Wollongong Isotope Geochronology Laboratory, School of Earth and Environmental Sciences, University of Wollongong, Wollongong, Australia
Recommended Citation:
Sinopoli G.,Peyron O.,Masi A.,et al. Pollen-based temperature and precipitation changes in the Ohrid Basin (western Balkans) between 160 and 70 ka[J]. Climate of the Past,2019-01-01,15(1)