globalchange  > 气候变化与战略
DOI: 10.1073/pnas.2005520117
论文题名:
Lagged atmospheric circulation response in the Black Sea region to Greenland Interstadial 10
作者: Czymzik M.; Nowaczyk N.R.; Dellwig O.; Wegwerth A.; Muscheler R.; Christl M.; Arz H.W.
刊名: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
出版年: 2020
卷: 117, 期:46
起始页码: 28649
结束页码: 28654
语种: 英语
英文关键词: Cosmogenic radionuclides | archive synchronization | Black Sea sediments | climate | phase relationship
Scopus关键词: Article ; atmosphere ; Black Sea ; chronology ; climate change ; climate warming ; controlled study ; detritus ; Greenland ; ice core record ; latitude ; paleoclimate ; precipitation ; priority journal ; sea surface temperature ; sediment ; X ray fluorescence spectrometry
英文摘要: Northern Hemispheric high-latitude climate variations during the last glacial are expected to propagate globally in a complex way. Investigating the evolution of these variations requires a precise synchronization of the considered environmental archives. Aligning the globally common production rate variations of the cosmogenic radionuclide 10Be in different archives provides a tool for such synchronizations. Here, we present a 10Be record at <40-y resolution along with subdecadal proxy records from one Black Sea sediment core around Greenland Interstadial 10 (GI-10) ∼41 ka BP and the Laschamp geomagnetic excursion. We synchronized our 10Be record to that from Greenland ice cores based on its globally common production rate variations. The synchronized environmental proxy records reveal a bipartite climate response in the Black Sea region at the onset of GI-10. First, in phase with Greenland warming, reduced sedimentary coastal ice rafted detritus contents indicate less severe winters. Second, and with a lag of 190 (± 44) y, an increase in the detrital K/Ti ratio and authigenic Ca precipitation point to enhanced regional precipitation and warmer lake surface temperatures. We explain the lagged climatic response by a shift in the dominant mode of atmospheric circulation, likely connected with a time-transgressive adjustment of the regional thermal ocean interior to interstadial conditions. © 2020 National Academy of Sciences. All rights reserved.
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被引频次[WOS]:7   [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/163938
Appears in Collections:气候变化与战略

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作者单位: Czymzik, M., Marine Geology, Leibniz Institute for Baltic Sea Research Warnemünde, Rostock, 18119, Germany; Nowaczyk, N.R., Climate Dynamics and Landscape Evolution, Helmholtz Centre Potsdam, German Research Centre for Geosciences, Potsdam, 14473, Germany; Dellwig, O., Marine Geology, Leibniz Institute for Baltic Sea Research Warnemünde, Rostock, 18119, Germany; Wegwerth, A., Marine Geology, Leibniz Institute for Baltic Sea Research Warnemünde, Rostock, 18119, Germany; Muscheler, R., Department of Geology, Lund University, Lund, 22362, Sweden; Christl, M., Laboratory of Ion Beam Physics, Eidgenössische Technische Hochschule Zurich, Zurich, 8093, Switzerland; Arz, H.W., Marine Geology, Leibniz Institute for Baltic Sea Research Warnemünde, Rostock, 18119, Germany

Recommended Citation:
Czymzik M.,Nowaczyk N.R.,Dellwig O.,et al. Lagged atmospheric circulation response in the Black Sea region to Greenland Interstadial 10[J]. Proceedings of the National Academy of Sciences of the United States of America,2020-01-01,117(46)
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