Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-016-3468-x |
Quantifying climate changes of the Common Era for Finland | |
Luoto, Tomi P.; Nevalainen, Liisa | |
2017-10-01 | |
发表期刊 | CLIMATE DYNAMICS
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ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2017 |
卷号 | 49 |
文章类型 | Article |
语种 | 英语 |
国家 | Finland |
英文摘要 | In this study, we aim to quantify summer air temperatures from sediment records from Southern, Central and Northern Finland over the past 2000 years. We use lake sediment archives to estimate paleotemperatures applying fossil Chironomidae assemblages and the transfer function approach. The used enhanced Chironomidae-based temperature calibration set was validated in a 70-year high-resolution sediment record against instrumentally measured temperatures. Since the inferred and observed temperatures showed close correlation, we deduced that the new calibration model is reliable for reconstructions beyond the monitoring records. The 700-year long temperature reconstructions from three sites at multi-decadal temporal resolution showed similar trends, although they had differences in timing of the cold Little Ice Age (LIA) and the initiation of recent warming. The 2000-year multi-centennial reconstructions from three different sites showed resemblance with each other having clear signals of the Medieval Climate Anomaly (MCA) and LIA, but with differences in their timing. The influence of external forcing on climate of the southern and central sites appeared to be complex at the decadal scale, but the North Atlantic Oscillation (NAO) was closely linked to the temperature development of the northern site. Solar activity appears to be synchronous with the temperature fluctuations at the multi-centennial scale in all the sites. The present study provides new insights into centennial and decadal variability in air temperature dynamics in Northern Europe and on the external forcing behind these trends. These results are particularly useful in comparing regional responses and lags of temperature trends between different parts of Scandinavia. |
英文关键词 | Chironomidae External forcing Little Ice Age Medieval Climate Anomaly Paleoclimate Paleolimnology |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000410803300019 |
WOS关键词 | NORTH-ATLANTIC OSCILLATION ; MEDIEVAL WARM PERIOD ; ICE-AGE ; SUMMER TEMPERATURE ; EASTERN FINLAND ; FOSSIL CLADOCERA ; SOUTHERN FINLAND ; INFERENCE MODEL ; SOLAR-ACTIVITY ; TREE-RINGS |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/36345 |
专题 | 气候变化 |
作者单位 | Univ Jyvaskyla, Dept Biol & Environm Sci, POB 35, Jyvaskyla 40014, Finland |
推荐引用方式 GB/T 7714 | Luoto, Tomi P.,Nevalainen, Liisa. Quantifying climate changes of the Common Era for Finland[J]. CLIMATE DYNAMICS,2017,49. |
APA | Luoto, Tomi P.,&Nevalainen, Liisa.(2017).Quantifying climate changes of the Common Era for Finland.CLIMATE DYNAMICS,49. |
MLA | Luoto, Tomi P.,et al."Quantifying climate changes of the Common Era for Finland".CLIMATE DYNAMICS 49(2017). |
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