DOI: 10.1016/j.quascirev.2017.01.010
Scopus记录号: 2-s2.0-85009932496
论文题名: Climate variability in SE Europe since 1450 AD based on a varved sediment record from Etoliko Lagoon (Western Greece)
作者: Koutsodendris A. ; Brauer A. ; Reed J.M. ; Plessen B. ; Friedrich O. ; Hennrich B. ; Zacharias I. ; Pross J.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2017
卷: 159 起始页码: 63
结束页码: 76
语种: 英语
英文关键词: Balkan Peninsula
; Climate variability
; Etoliko Lagoon
; Little Ice Age
; SE Europe
; Solar minimum
; Varve microfacies
Scopus关键词: Atmospheric pressure
; Climatology
; Ecology
; Ecosystems
; Eutrophication
; Glacial geology
; Ice
; Lakes
; Meteorology
; Trees (mathematics)
; Balkan peninsulas
; Climate variability
; Etoliko Lagoon
; Little Ice Age
; Micro-facies
; Solar minima
; Climate change
; atmospheric circulation
; chronology
; climate variation
; dinoflagellate cyst
; eutrophication
; lamination
; Little Ice Age
; Maunder Minimum
; microfacies
; North Atlantic Oscillation
; ostracod
; pollen
; precipitation (climatology)
; primary production
; sediment analysis
; solar radiation
; varve
; Aetolia and Acarnania
; Balkans
; Etoliko Lagoon
; Greece
; Western Greece
; Bacillariophyta
; Dinophyceae
; Ostracoda
英文摘要: To achieve deeper understanding of climate variability during the last millennium in SE Europe, we report new sedimentological and paleoecological data from Etoliko Lagoon, Western Greece. The record represents the southernmost annually laminated (i.e., varved) archive from the Balkan Peninsula spanning the Little Ice Age, allowing insights into critical time intervals of climate instability such as during the Maunder and Dalton solar minima. After developing a continuous, ca. 500-year-long varve chronology, high-resolution μ–XRF counts, stable-isotope data measured on ostracod shells, palynological (including pollen and dinoflagellate cysts), and diatom data are used to decipher the season-specific climate and ecosystem evolution at Etoliko Lagoon since 1450 AD. Our results show that the Etoliko varve record became more sensitive to climate change from 1740 AD onwards. We attribute this shift to the enhancement of primary productivity within the lagoon, which is documented by an up to threefold increase in varve thickness. This marked change in the lagoon's ecosystem was caused by: (i) increased terrestrial input of nutrients, (ii) a closer connection to the sea and human eutrophication particularly from 1850 AD onwards, and (iii) increasing summer temperatures. Integration of our data with those of previously published paleolake sediment records, tree-ring-based precipitation reconstructions, simulations of atmospheric circulation and instrumental precipitation data suggests that wet conditions in winter prevailed during 1740–1790 AD, whereas dry winters marked the periods 1790–1830 AD (Dalton Minimum) and 1830–1930 AD, the latter being sporadically interrupted by wet winters. This variability in precipitation can be explained by shifts in the large-scale atmospheric circulation patterns over the European continent that affected the Balkan Peninsula (e.g., North Atlantic Oscillation). The transition between dry and wet phases at Etoliko points to longitudinal shifts of the precipitation pattern in the Balkan Peninsula during the Little Ice Age. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59306
Appears in Collections: 过去全球变化的重建
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作者单位: Institute of Earth Sciences, Heidelberg University, Im Neuenheimer Feld 234, Heidelberg, Germany; German Research Center for Geosciences, Section 5.2 Climate Dynamics and Landscape Evolution, Telegrafenberg, Potsdam, Germany; Department of Geography, School of Environmental Sciences, University of Hull, Cottingham Road, Hull, United Kingdom; Department of Environmental and Natural Resources Management, University of Patras, Seferi 2, Agrinio, Greece
Recommended Citation:
Koutsodendris A.,Brauer A.,Reed J.M.,et al. Climate variability in SE Europe since 1450 AD based on a varved sediment record from Etoliko Lagoon (Western Greece)[J]. Quaternary Science Reviews,2017-01-01,159