气候变化领域集成服务门户(CCPortal): An annually resolved record of Western European vegetation response to Younger Dryas cooling

CCPortal

DOI	10.1016/j.quascirev.2020.106198
	An annually resolved record of Western European vegetation response to Younger Dryas cooling
	Obreht I.; Wörmer L.; Brauer A.; Wendt J.; Alfken S.; De Vleeschouwer D.; Elvert M.; Hinrichs K.-U.
发表日期	2020
ISSN	0277-3791
卷号	231
英文摘要	The regional patterns and timing of the Younger Dryas cooling in the North Atlantic realm were complex and are mechanistically incompletely understood. To enhance understanding of regional climate patterns, we present molecular biomarker records at subannual to annual resolution by mass spectrometry imaging (MSI) of sediments from the Lake Meerfelder Maar covering the Allerød-Younger Dryas transition. These analyses are supported by conventional extraction-based molecular-isotopic analyses, which both validate the imaging results and constrain the sources of the target compounds. The targeted fatty acid biomarkers serve as a gauge of the response of the local aquatic and terrestrial ecosystem to climate change. Based on the comparison of our data with existing data from Meerfelder Maar, we analyse the short-term environmental evolution in Western Europe during the studied time interval and confirm the previously reported delayed hydrological response to Greenland cooling. However, despite a detected delay of Western European environmental change of ∼135 years, our biomarker data show statistically significant correlation with deuterium excess in Greenland ice core at ∼ annual resolution during this time-transgressive cooling. This suggests a coherent atmospheric forcing across the North Atlantic realm during this transition. We propose that Western European cooling was postponed due to major reorganization of the westerlies that were intermittently forcing warmer and wetter air masses from lower latitudes to Western Europe and thus resulted in delayed cooling relative to Greenland. © 2020 The Authors
英文关键词	Fatty acids; FT-ICR-MS; High-resolution biomarkers; Lateglacial; Mass Spectrometry Imaging; Meerfelder Maar; Paleoclimatology; Western Europe
语种	英语
scopus关键词	Aquatic ecosystems; Climate change; Fatty acids; Glacial geology; Mass spectrometry; Molecular imaging; FT-ICR MS; High resolution; Lateglacial; Mass-spectrometry imaging; Meerfelder Maar; Paleoclimatology; Western Europe; Biomarkers; annual variation; atmospheric forcing; biomarker; cooling; fatty acid; historical record; imaging method; late glacial; mass spectrometry; paleoclimate; vegetation dynamics; Younger Dryas; Arctic; Atlantic Ocean; Atlantic Ocean (North); Germany; Greenland; Meerfelder Maar; Rhineland-Palatinate; Western Europe
来源期刊	Quaternary Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/151577
作者单位	Organic Geochemistry Group, MARUM – Center for Marine Environmental Sciences and Department of Geosciences, University of Bremen, Leobener Str. 8, Bremen, 28359, Germany; GFZ – German Research Centre for Geosciences, Section Climate Dynamics and Landscape Evolution, Telegrafenberg, Potsdam, 14473, Germany; Potsdam University, Department of Earth Sciences, Karl-Liebknecht-Str. 24/25, Potsdam, 14476, Germany; Paleoceanography Group, MARUM – Center for Marine Environmental Sciences and Department of Geosciences, University of Bremen, Leobener Str. 8, Bremen, 28359, Germany
推荐引用方式 GB/T 7714	Obreht I.,Wörmer L.,Brauer A.,et al. An annually resolved record of Western European vegetation response to Younger Dryas cooling[J],2020,231.
APA	Obreht I..,Wörmer L..,Brauer A..,Wendt J..,Alfken S..,...&Hinrichs K.-U..(2020).An annually resolved record of Western European vegetation response to Younger Dryas cooling.Quaternary Science Reviews,231.
MLA	Obreht I.,et al."An annually resolved record of Western European vegetation response to Younger Dryas cooling".Quaternary Science Reviews 231(2020).