globalchange  > 过去全球变化的重建
DOI: 10.1016/j.quascirev.2012.10.030
Scopus记录号: 2-s2.0-84881370103
论文题名:
Shifts in precipitation during the last millennium in northern Scandinavia from lacustrine isotope records
作者: Rosqvist G.C.; Leng M.J.; Goslar T.; Sloane H.J.; Bigler C.; Cunningham L.; Dadal A.; Bergman J.; Berntsson A.; Jonsson C.; Wastegård S.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2013
卷: 66
起始页码: 22
结束页码: 34
语种: 英语
英文关键词: Diatoms ; Isotope ; Lakes ; Last millennium ; Scandinavian climate
Scopus关键词: Atmospheric circulation ; Carbon isotopes ; Diatoms ; Isotopic composition ; Last millenniums ; Oxygen isotopes ; Scandinavian climate ; Seasonal variation ; Carbon ; Forestry ; Lakes ; Phytoplankton ; Isotopes ; atmospheric circulation ; climate forcing ; cloud cover ; isotopic analysis ; lacustrine deposit ; lake water ; nineteenth century ; precipitation (climatology) ; residence time ; seasonal variation ; tree ring ; Climates ; Diatoms ; Forestry ; Isotopes ; Lakes ; Scandinavia ; Scandinavia ; Bacillariophyta
英文摘要: Here we present δ;18Odiatom data from two high-latitude lakes; one has short residence time and a water isotopic composition (δ18Olake) that fluctuate due to seasonal variations in precipitation and temperature, and the other has δ18Olake that is influenced by longer lake water residence times and evaporation. The δ18Odiatom records reveal common responses to precipitation forcing over the past millennium. Relatively wet summers are inferred from δ18Odiatom between 1000 and 1080 AD, 1300 and 1440 AD, and during the early 19th century, coincided with periods of high cloud cover inferred from tree-ring carbon isotopes, and other data for high Arctic Oscillation index. While relatively dry summers with increasing influence of winter snow are indicated between 1600 and 1750 AD. The co-response between carbon isotopes in trees and oxygen isotopes in diatoms strengthens the relationship between cloud cover and precipitation and the hypothesis that these changes were the result of significant regional shifts in atmospheric circulation. © 2012 Elsevier Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60742
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作者单位: Department of Physical Geography and Quaternary Geology, Stockholm University, 106 91 Stockholm, Sweden; Department of Geology, University of Leicester, Leicester LE1 7RH, United Kingdom; NERC Isotope Geosciences Laboratory, British Geological Survey, Keyworth, Nottingham G12 5GG, United Kingdom; Faculty of Physics, A. Mickiewicz University, Ul. Umultowska 85, 61-614 Poznań, Poland; Poznań Radiocarbon Laboratory, Ul. Rubiez 46, 61-612 Poznan, Poland; Department of Ecology and Environmental Science, Umeå University, SE-901 87 Umeå, Sweden; School of Geography and Geosciences, Irvine Building, University of St Andrews, North Street, St Andrews KY16 9AL, Fife, Scotland, United Kingdom

Recommended Citation:
Rosqvist G.C.,Leng M.J.,Goslar T.,et al. Shifts in precipitation during the last millennium in northern Scandinavia from lacustrine isotope records[J]. Quaternary Science Reviews,2013-01-01,66
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