globalchange  > 影响、适应和脆弱性
DOI: 10.1016/j.epsl.2018.07.027
Scopus记录号: 2-s2.0-85050679805
论文题名:
Reconstruction of late Holocene autumn/winter precipitation variability in SW Romania from a high-resolution speleothem trace element record
作者: Warken S.F.; Fohlmeister J.; Schröder-Ritzrau A.; Constantin S.; Spötl C.; Gerdes A.; Esper J.; Frank N.; Arps J.; Terente M.; Riechelmann D.F.C.; Mangini A.; Scholz D.
刊名: Earth and Planetary Science Letters
ISSN: 0012821X
出版年: 2018
卷: 499
起始页码: 122
结束页码: 133
语种: 英语
英文关键词: North Atlantic forcing ; precipitation reconstruction ; proxy calibration ; Romania ; speleothem ; trace elements
Scopus关键词: Calibration ; Precipitation (meteorology) ; Climate gradients ; Climate reconstruction ; Climatic features ; North Atlantic ; Precipitation reconstruction ; Precipitation variability ; Romania ; speleothem ; Trace elements ; Holocene ; paleoclimate ; precipitation (climatology) ; proxy climate record ; reconstruction ; seasonal variation ; speleothem ; trace element ; Romania
英文摘要: We present the first high-resolution trace element (Mg/Ca, Sr/Ca, Ba/Ca) record from a stalagmite in southwestern Romania covering the last 3.6 ka, which provides the potential for quantitative climate reconstruction. Precise age control is based on three independent dating methods, in particular for the last 250 yr, where chemical lamina counting is combined with the identification of the 20th century radiocarbon bomb peak and 230Th/U dating. Long-term cave monitoring and model simulations of drip water and speleothem elemental variability indicate that precipitation-related processes are the main drivers of speleothem Mg/Ca ratios. Calibration against instrumental climate data shows a significant anti-correlation of speleothem Mg/Ca ratios with autumn/winter (October to March) precipitation (r = −0.61, p < 0.01), which is statistically robust when considering age uncertainties and auto-correlation. This relationship is used to develop a quantitative reconstruction of autumn/winter precipitation. During the late Holocene, our data suggest a heterogeneous pattern of past regional winter hydroclimate in the Carpathian/Balkan realm, along with intermittent weakening of the dominant influence of North Atlantic forcing. In agreement with other regional paleo-hydrological reconstructions, the observed variability reveals periodically occurring strong NW–SE hydro-climate gradients. We hypothesize, that this pattern is caused by shifts of the eastern edge of the area of influence of the NAO across central-eastern Europe due to the confluence of North Atlantic forcing, and other climatic features such as the East Atlantic/Western Russia (EAWR) pattern. © 2018 Elsevier B.V.
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被引频次[WOS]:37   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109718
Appears in Collections:影响、适应和脆弱性
气候变化事实与影响

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作者单位: Institute of Geosciences, Johannes Gutenberg-University Mainz, Johann-Joachim-Becher-Weg 21, Mainz, 55128, Germany; Institute of Environmental Physics, Heidelberg University, Im Neuenheimer Feld 229, Heidelberg, 69120, Germany; Institute of Earth and Environmental Science, University of Potsdam, Karl-Liebknecht-Strasse 24, Haus 2714476, Germany; GFZ German Research Centre for Geosciences, Section 5.2 Climate Dynamics and Landscape Development, Telegrafenberg, Potsdam, 14473, Germany; Institute of Speleology “Emil Racovita”, Strada Frumosa 31, Bucuresti010986, Romania; Institute of Geology, University of Innsbruck, Innrain 52, Innsbruck, 6020, Austria; Institute of Geosciences, Goethe University Frankfurt, Altenhöferallee 1, Frankfurt am Main, 60438, Germany; Department of Geography, Johannes Gutenberg-University Mainz, Johann-Joachim-Becher-Weg 21, Mainz, 55128, Germany

Recommended Citation:
Warken S.F.,Fohlmeister J.,Schröder-Ritzrau A.,et al. Reconstruction of late Holocene autumn/winter precipitation variability in SW Romania from a high-resolution speleothem trace element record[J]. Earth and Planetary Science Letters,2018-01-01,499
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