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Continental-scale temperature variability during the past two millennia
Moinuddin Ahmed; ......; Ze-Xin Fan
2013
Source PublicationNature Geoscience
Volume6Issue:xPages:339-346
Abstract

Past global climate changes had strong regional expression. To elucidate their spatio-temporal pattern, we reconstructed past temperatures for seven continental-scale regions during the past one to two millennia. The most coherent feature in nearly all of the regional temperature reconstructions is a long-term cooling trend, which ended late in the nineteenth century. At multi-decadal to centennial scales, temperature variability shows distinctly different regional patterns, with more similarity within each hemisphere than between them. There were no globally synchronous multi-decadal warm or cold intervals that define a worldwide Medieval Warm Period or Little Ice Age, but all reconstructions show generally cold conditions between ad 1580 and 1880, punctuated in some regions by warm decades during the eighteenth century. The transition to these colder conditions occurred earlier in the Arctic, Europe and Asia than in North America or the Southern Hemisphere regions. Recent warming reversed the long-term cooling; during the period ad 1971–2000, the area-weighted average reconstructed temperature was higher than any other time in nearly 1,400 years.

Document Type期刊论文
Identifierhttp://ir.xtbg.org.cn/handle/353005/4374
Collection2012年后新成立研究组
Recommended Citation
GB/T 7714
Moinuddin Ahmed,......,Ze-Xin Fan. Continental-scale temperature variability during the past two millennia[J]. Nature Geoscience,2013,6(x):339-346.
APA Moinuddin Ahmed,......,&Ze-Xin Fan.(2013).Continental-scale temperature variability during the past two millennia.Nature Geoscience,6(x),339-346.
MLA Moinuddin Ahmed,et al."Continental-scale temperature variability during the past two millennia".Nature Geoscience 6.x(2013):339-346.
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