globalchange  > 过去全球变化的重建
DOI: 10.1016/j.quascirev.2017.02.020
论文题名:
Last millennium Northern Hemisphere summer temperatures from tree rings: Part II, spatially resolved reconstructions
作者: Anchukaitis K.J.; Wilson R.; Briffa K.R.; Büntgen U.; Cook E.R.; D'Arrigo R.; Davi N.; Esper J.; Frank D.; Gunnarson B.E.; Hegerl G.; Helama S.; Klesse S.; Krusic P.J.; Linderholm H.W.; Myglan V.; Osborn T.J.; Zhang P.; Rydval M.; Schneider L.; Schurer A.; Wiles G.; Zorita E.
刊名: Quaternary Science Reviews
出版年: 2017
卷: 163
起始页码: 1
结束页码: 22
语种: 英语
英文关键词: Common Era ; Last millennium ; Northern Hemisphere ; Reconstruction ; Spatial ; Summer temperatures ; Tree-rings
英文摘要: Climate field reconstructions from networks of tree-ring proxy data can be used to characterize regional-scale climate changes, reveal spatial anomaly patterns associated with atmospheric circulation changes, radiative forcing, and large-scale modes of ocean-atmosphere variability, and provide spatiotemporal targets for climate model comparison and evaluation. Here we use a multiproxy network of tree-ring chronologies to reconstruct spatially resolved warm season (May–August) mean temperatures across the extratropical Northern Hemisphere (40-90°N) using Point-by-Point Regression (PPR). The resulting annual maps of temperature anomalies (750–1988 CE) reveal a consistent imprint of volcanism, with 96% of reconstructed grid points experiencing colder conditions following eruptions. Solar influences are detected at the bicentennial (de Vries) frequency, although at other time scales the influence of insolation variability is weak. Approximately 90% of reconstructed grid points show warmer temperatures during the Medieval Climate Anomaly when compared to the Little Ice Age, although the magnitude varies spatially across the hemisphere. Estimates of field reconstruction skill through time and over space can guide future temporal extension and spatial expansion of the proxy network. © 2017 Elsevier Ltd
资助项目: Anchukaitis, K.J. ; School of Geography and Development, University of ArizonaUnited States ; 电子邮件: kanchukaitis@email.arizona.edu
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59264
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作者单位: School of Geography and Development, University of Arizona, Tucson, AZ, United States; Laboratory of Tree-Ring Research, University of Arizona, Tucson, AZ, United States; Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY, United States; School of Geography and Geosciences, University of St Andrews, United Kingdom; Climatic Research Unit, School of Environmental Sciences, University of East Anglia, Norwich, United Kingdom; Department of Geography, University of Cambridge, Cambridge, United Kingdom; Swiss Federal Research Institute WSL, Birmensdorf, Switzerland; Global Change Research Centre and Masaryk University Brno; Department of Environmental Science, William Paterson University, Wayne, NJ, United States; Department of Geography, Gutenberg University, Mainz, Germany; Department of Physical Geography, Stockholm University, Stockholm, Sweden; School of GeoSciences, University of Edinburgh, Edinburgh, United Kingdom; Natural Resources Institute Finland, Rovaniemi, Finland; Navarino Environmental Obs., Messinia, Greece; Department of Earth Sciences, University of Gothenburg, Göteborg, Sweden; Siberian Federal University, Krasnoyarsk, Russian Federation; Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague; Department of Geography, Justus Liebig University, Giessen, Germany; Tree Ring Lab, The College of Wooster, Wooster, OH, United States; Institute of Coastal Research, Helmholtz-Zentrum Geesthacht (HZG), Hamburg, Germany

Recommended Citation:
Anchukaitis K.J.,Wilson R.,Briffa K.R.,et al. Last millennium Northern Hemisphere summer temperatures from tree rings: Part II, spatially resolved reconstructions[J]. Quaternary Science Reviews,2017-01-01,163
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