DOI: 10.1002/2015GL065499
论文题名: Black Sea temperature response to glacial millennial-scale climate variability
作者: Wegwerth A. ; Ganopolski A. ; Ménot G. ; Kaiser J. ; Dellwig O. ; Bard E. ; Lamy F. ; Arz H.W.
刊名: Geophysical Research Letters
ISSN: 0094-8558
EISSN: 1944-8289
出版年: 2015
卷: 42, 期: 19 起始页码: 8147
结束页码: 8154
语种: 英语
英文关键词: Black Sea
; Dansgaard-Oeschger cycles
; proxy-model comparison
; TEX86 temperature
Scopus关键词: Climate change
; Climatology
; Glacial geology
; Atmospheric circulation
; Atmospheric teleconnection patterns
; Black sea
; Climate variability
; Dansgaard-Oeschger cycles
; Proxy model
; Temperature anomaly
; Temperature variability
; Atmospheric temperature
; biomarker
; climate variation
; Dansgaard-Oeschger cycle
; Heinrich event
; ice-rafted debris
; inland sea
; meridional circulation
; paleotemperature
; proxy climate record
; sea surface temperature
; teleconnection
; temperature anomaly
; trend analysis
; Arctic
; Black Sea
; Eurasia
; Greenland
英文摘要: The Eurasian inland propagation of temperature anomalies during glacial millennial-scale climate variability is poorly understood, but this knowledge is crucial to understanding hemisphere-wide atmospheric teleconnection patterns and climate mechanisms. Based on biomarkers and geochemical paleothermometers, a pronounced continental temperature variability between 64,000 and 20,000 years ago, coinciding with the Greenland Dansgaard-Oeschger cycles, was determined in a well-dated sediment record from the formerly enclosed Black Sea. Cooling during Heinrich events was not stronger than during other stadials in the Black Sea. This is corroborated by modeling results showing that regular Dansgaard-Oeschger cycles penetrated deeper into the Eurasian continent than Heinrich events. The pattern of coastal ice-rafted detritus suggests a strong dependence on the climate background state, with significantly milder winters during periods of reduced Eurasian ice sheets and an intensified meridional atmospheric circulation. Key Points Impact of Dansgaard-Oeschger cycles on the Black Sea surface temperature Absence of extra cooling during Heinrich events Different modes of DO cycles and HE propagation suggested by a proxy-model comparison © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84947038054&doi=10.1002%2f2015GL065499&partnerID=40&md5=544b01ebb0230e607acc4569e6b3b574
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8174
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Marine Geology, Leibniz Institute for Baltic Sea Research Warnemünde (IOW), Rostock, Germany
Recommended Citation:
Wegwerth A.,Ganopolski A.,Ménot G.,et al. Black Sea temperature response to glacial millennial-scale climate variability[J]. Geophysical Research Letters,2015-01-01,42(19).