The temperature of Europe during the Holocene reconstructed from pollen data
The temperature of Europe during the Holocene reconstructed from pollen data
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DOI：
10.1016/s0277-3791(03)00173-2
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发表时间：
2003-07-01
影响因子：
4
通讯作者：
Guiot, J
中科院分区：
文献类型：
--
作者：
Davis, BAS;Brewer, S;Guiot, J
我们给出了过去12,000年来欧洲最热月、最冷月和年平均地面气温的第一次区域平均时间序列重建。这些系列基于对500多个花粉点的定量花粉气候重建，这些花粉点使用创新的四维网格程序进行同化。这种方法将三维空间网格与以时间表示的第四维相结合，允许将来自不规则时间序列的数据‘聚焦’到规则的时间步长上。我们提供了六个区域重建的温度时间序列以及整个欧洲的汇总时间序列。结果表明，在区域和年度能源收支非常平衡的情况下，全新世气温趋势存在重大的空间和季节差异。传统的中全新世最高温度只在北欧地区出现，主要是在夏季。这种变暖被南欧上空的中全新世降温所平衡，而中欧占据了中间位置。整个欧洲年平均气温的变化表明，热收支几乎呈线性增长，最高可达7800BP，随后全新世剩余时间的状况稳定。这种早期的全新世变暖和后来的平衡主要受到西部冬季气温上升的影响，直到今天，西部地区的冬季气温一直在以逐渐下降的速度上升。(C)2003爱思唯尔有限公司。保留所有权利。
We present the first area-average time series reconstructions of warmest month, coldest month and mean annual surface air temperatures across Europe during the last 12,000 years. These series are based on quantitative pollen climate reconstructions from over 500 pollen sites assimilated using an innovative four-dimensional gridding procedure. This approach combines three-dimensional spatial gridding with a fourth dimension represented by time, allowing data from irregular time series to be 'focussed' onto a regular time step. We provide six regional reconstructed temperature time series as well as summary time series for the whole of Europe. The results suggest major spatial and seasonal differences in Holocene temperature trends within a remarkably balanced regional and annual energy budget. The traditional mid-Holocene thermal maximum is observed only over Northern Europe and principally during the summer. This warming was balanced by a mid-Holocene cooling over Southern Europe, whilst Central Europe occupied an intermediary position. Changes in annual mean temperatures for Europe as a whole suggest an almost linear increase in thermal budget up to 7800 BP, followed by stable conditions for the remainder of the Holocene. This early Holocene warming and later equilibrium has been mainly modulated by increasing winter temperatures in the west, which have continued to rise at a progressively decreasing rate up to the present day. (C) 2003 Elsevier Ltd. All rights reserved.