globalchange  > 过去全球变化的重建
DOI: 10.1007/s00382-016-3332-z
Scopus记录号: 2-s2.0-84994351560
论文题名:
400 Years of summer hydroclimate from stable isotopes in Iberian trees
作者: Andreu-Hayles L.; Ummenhofer C.C.; Barriendos M.; Schleser G.H.; Helle G.; Leuenberger M.; Gutiérrez E.; Cook E.R.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2017
卷: 49, 期:2017-01-02
起始页码: 143
结束页码: 161
语种: 英语
英文关键词: Atmospheric circulation ; Extreme analyses ; Hydroclimate ; Iberian Peninsula ; Old World Drought Atlas (OWDA) ; Sea level pressure (SLP) ; Tree rings
英文摘要: Tree rings are natural archives that annually record distinct types of past climate variability depending on the parameters measured. Here, we use ring-width and stable isotopes in cellulose of trees from the northwestern Iberian Peninsula (IP) to understand regional summer hydroclimate over the last 400 years and the associated atmospheric patterns. Correlations between tree rings and climate data demonstrate that isotope signatures in the targeted Iberian pine forests are very sensitive to water availability during the summer period, and are mainly controlled by stomatal conductance. Non-linear methods based on extreme events analysis allow for capturing distinct seasonal climatic variability recorded by tree-ring parameters and asymmetric signals of the associated atmospheric features. Moreover, years with extreme high (low) values in the tree-ring records were characterised by coherent large-scale atmospheric circulation patterns with reduced (enhanced) moisture transport onto the northwestern IP. These analyses of extremes revealed that high/low proxy values do not necessarily correspond to mirror images in the atmospheric anomaly patterns, suggesting different drivers of these patterns and the corresponding signature recorded in the proxies. Regional hydroclimate features across the broader IP and western Europe during extreme wet/dry summers detected by the northwestern IP trees compare favourably to independent multicentury sea level pressure and drought reconstructions for Europe. Historical records also validate our findings that attribute non-linear moisture signals recorded by extreme tree-ring values to distinct large-scale atmospheric patterns and allow for 400-year reconstructions of the frequency of occurrence of extreme conditions in late spring and summer hydroclimate. © 2016, Springer-Verlag Berlin Heidelberg.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53165
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作者单位: Tree-Ring Laboratory, Lamont-Doherty Earth Observatory, Columbia University, 61 Route 9W, Palisades, NY, United States; Department of Physical Oceanography, Woods Hole Oceanographic Institution, Woods Hole, MA, United States; Department of History and Archaeology, University of Barcelona, Barcelona, Spain; Institut Català Ciències del Clima (IC3), Barcelona, Catalonia, Spain; Climate Dynamics and Landscape Evolution, German Centre for Geosciences, Potsdam, Germany; Research Center Juelich Institute of Bio-and Geosciences, Agrosphere (IBG-3), Juelich, Germany; Climate and Environmental Physics, University of Bern, Bern, Switzerland; Department of Ecology, University of Barcelona, Barcelona, Spain

Recommended Citation:
Andreu-Hayles L.,Ummenhofer C.C.,Barriendos M.,et al. 400 Years of summer hydroclimate from stable isotopes in Iberian trees[J]. Climate Dynamics,2017-01-01,49(2017-01-02)
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