气候变化领域集成服务门户(CCPortal): Revising Alpine summer temperatures since 881 CE

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DOI	10.1007/s00382-024-07195-1
	Revising Alpine summer temperatures since 881 CE
	Kuhl, Eileen; Esper, Jan; Schneider, Lea; Trouet, Valerie; Kunz, Marcel; Klippel, Lara; Buentgen, Ulf; Hartl, Claudia
发表日期	2024
ISSN	0930-7575
EISSN	1432-0894
英文摘要	Europe experienced severe heat waves during the last decade, which impacted ecological and societal systems and are likely to increase under projected global warming. A better understanding of pre-industrial warm-season changes is needed to contextualize these recent trends and extremes. Here, we introduce a network of 352 living and relict larch trees (Larix decidua Mill.) from the Matter and Simplon valleys in the Swiss Alps to develop a maximum latewood density (MXD) chronology calibrating at r = 0.8 (p > 0.05, 1901-2017 CE) against May-August temperatures over Western Europe. Machine learning is applied to identify historical wood samples aligning with growth characteristics of sites from elevations above 1900 m asl to extend the modern part of the chronology back to 881 CE. The new Alpine record reveals warmer conditions in the tenth century, followed by an extended cold period during the late Medieval times, a less-pronounced Little Ice Age culminating in the 1810s, and prolonged anthropogenic warming until present. The Samalas eruption likely triggered the coldest reconstructed summer in Western Europe in 1258 CE (-2.32 degree celsius), which is in line with a recently published MXD-based reconstruction from the Spanish Pyrenees. Whereas the new Alpine reconstruction is potentially constrained in the lowest frequency, centennial timescale domain, it overcomes variance biases in existing state-of-the-art reconstructions and sets a new standard in site-control of historical samples and calibration/ verification statistics.
英文关键词	Climate reconstruction; Climate change; Dendrochronology; Europe; European Alps; Tree rings
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:001190332000001
来源期刊	CLIMATE DYNAMICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/288647
作者单位	Johannes Gutenberg University of Mainz; Justus Liebig University Giessen; University of Arizona; University of Cambridge; Czech Academy of Sciences; Global Change Research Centre of the Czech Academy of Sciences; Swiss Federal Institutes of Technology Domain; Swiss Federal Institute for Forest, Snow & Landscape Research; Masaryk University Brno
推荐引用方式 GB/T 7714	Kuhl, Eileen,Esper, Jan,Schneider, Lea,et al. Revising Alpine summer temperatures since 881 CE[J],2024.
APA	Kuhl, Eileen.,Esper, Jan.,Schneider, Lea.,Trouet, Valerie.,Kunz, Marcel.,...&Hartl, Claudia.(2024).Revising Alpine summer temperatures since 881 CE.CLIMATE DYNAMICS.
MLA	Kuhl, Eileen,et al."Revising Alpine summer temperatures since 881 CE".CLIMATE DYNAMICS (2024).