Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.3354/cr01543 |
East European chironomid-based calibration model for past summer temperature reconstructions | |
Luoto, Tomi P.1; Kotrys, Bartosz2; Plociennik, Mateusz3 | |
2018 | |
发表期刊 | CLIMATE RESEARCH |
ISSN | 0936-577X |
EISSN | 1616-1572 |
出版年 | 2018 |
卷号 | 77期号:1页码:63-76 |
文章类型 | Article |
语种 | 英语 |
国家 | Finland; Poland |
英文摘要 | Understanding local patterns and large-scale processes in past climate necessitates a detailed network of temperature reconstructions. In this study, a merged temperature inference model using fossil chironomid (Diptera: Chironomidae) datasets from Finland and Poland was constructed to fill the lack of an applicable training set for East European sites. The developed weighted averaging partial least squares (WA-PLS) inference model showed favorable performance statistics, suggesting that the model can be useful for downcore reconstructions. The combined calibration model includes 212 sites, 142 taxa, and a temperature gradient of 11.3-20.1 degrees C. The 2-component WA-PLS model has a cross-validated coefficient of determination of 0.88 and a root mean squared prediction error of 0.88 degrees C. We tested the new East European temperature transfer function in chironomid stratigraphies from a Finnish high-resolution short-core sediment record and a Polish paleolake (Zabieniec) covering the past similar to 20 000 yr. In the Finnish site, the chironomid-inferred temperatures correlated closely with the observed instrumental temperatures, showing improved accuracy compared to estimates by the original Finnish calibration model. In addition, the long-core reconstruction from the Polish site showed logical results in its general trends compared to existing knowledge on the past regional climate trends; however, it had distinct differences when compared with hemispheric climate oscillations. Hence, based on these findings, the new temperature model will enable more detailed examination of long-term temperature variability in Eastern Europe, and consequently, reliable identification of local and regional climate variability of the past. |
英文关键词 | Chironomidae Climate reconstruction Finland Holocene Late Glacial Paleoclimate Poland Training set Transfer function |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000456195100004 |
WOS关键词 | AIR-TEMPERATURE ; LATITUDINAL GRADIENT ; INSECTA DIPTERA ; INFERENCE MODEL ; YOUNGER DRYAS ; DATA-SET ; HOLOCENE ; LAKE ; FINLAND ; CLIMATE |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; 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/38494 |
专题 | 气候变化 |
作者单位 | 1.Univ Helsinki, Ecosyst & Environm Res Programme, Fac Biol & Environm Sci, Lahti 15140, Finland; 2.Natl Res Inst, Polish Geol Inst, Pomeranian Branch Szczecin, PL-71130 Szczecin, Poland; 3.Univ Lodz, Fac Biol & Environm Protect, Dept Invertebrate Zool & Hydrobiol, PL-90237 Lodz, Poland |
推荐引用方式 GB/T 7714 | Luoto, Tomi P.,Kotrys, Bartosz,Plociennik, Mateusz. East European chironomid-based calibration model for past summer temperature reconstructions[J]. CLIMATE RESEARCH,2018,77(1):63-76. |
APA | Luoto, Tomi P.,Kotrys, Bartosz,&Plociennik, Mateusz.(2018).East European chironomid-based calibration model for past summer temperature reconstructions.CLIMATE RESEARCH,77(1),63-76. |
MLA | Luoto, Tomi P.,et al."East European chironomid-based calibration model for past summer temperature reconstructions".CLIMATE RESEARCH 77.1(2018):63-76. |
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