| The impact of proxy selection strategies on a millennium-long ensemble of hydroclimatic records in Monsoon Asia | |
| Schneider, Lea1; Ljungqvist, Fredrik Charpentier2,3,4; Yang, Bao5; Chen, Fahu6,7,8; Chen, Jianhui8; Li, Jianyong9,10; Hao, Zhixin11; Ge, Quansheng11; Talento, Stefanie1; Osborn, Timothy J.12; Luterbacher, Juerg1,13 | |
| 通讯作者 | Schneider, Lea(lea.schneider@geogr.uni-giessen.de) |
| 2019-11-01 | |
| 发表期刊 | QUATERNARY SCIENCE REVIEWS
 |
| ISSN | 0277-3791 |
| 卷号 | 223页码:14 |
| 摘要 | Large-scale palaeoclimate reconstructions can be very sensitive to the proxy records they are based on, and hence to the criteria used to select proxy records. Data selection rarely follows objective criteria that are applicable to all types of proxies, including both low- and high-resolution records. Thus, there is a need for a uniform and transparent approach to assess the suitability of input proxy data for a reconstruction. Here, we develop classification criteria that are applicable to multiple proxy types and evaluate different selection strategies using a network of 62 millennium-long terrestrial hydroclimate proxy records from Monsoon Asia. Our results reveal that robust evidence for a coherent climate signal and high dating accuracy are important criteria for benchmarking the suitability of each proxy record. We determine these criteria by reviewing the literature for each record (rather than screening against instrumental data). We show that the proposed selection approach can yield a network with a stronger common signal. By evaluating the uncertainty and centennial variability of composite reconstructions, from differently selected subsets of the proxy network, it appears beneficial to use suitable proxies stemming from different archives, as well as having a dense network of proxy sites. We suggest that future large-scale palaeoclimate reconstructions might be improved by evaluating proxy networks according to the universal categories presented here and, if indicated, removing less suitable records. This will strengthen the climate signal in the final reconstruction, allowing more precise inferences about past climate variability and more robust comparisons with climate model simulations. (C) 2019 Elsevier Ltd. All rights reserved. |
| 关键词 | Holocene Paleoclimatology Eastern Asia Data treatment Large-scale reconstruction Low resolution Expert assessment Spatial decorrelation length Multi-proxy Past millennium |
| DOI | 10.1016/j.quascirev.2019.105917 |
| 关键词[WOS] | NORTHERN-HEMISPHERE TEMPERATURE ; TIBETAN PLATEAU ; SUMMER MONSOON ; CENTRAL CHINA ; LATE-HOLOCENE ; TREE-RINGS ; ICE-AGE ; PRECIPITATION VARIABILITY ; STREAMFLOW RECONSTRUCTION ; CLIMATIC VARIABILITY |
| 收录类别 | SCI ; SCI |
| 语种 | 英语 |
| 资助项目 | Belmont Forum ; JPI-Climate, Collaborative Research Action INTEGRATE An integrated data-model study of interactions between tropical monsoons and extratropical climate variability and extremes (BMBF)[01LP1612A] ; NERC[NE/P006809/1] ; NSFC[41661144008] ; Swedish Research Council (Vetenskapsradet)[2018-01272] ; State Key Laboratory of Loess and Quaternary Geology in the Institute of Earth Environment of the Chinese Academy of Sciences[Y652001589] ; State Key Laboratory of Loess and Quaternary Geology in the Institute of Earth Environment of the Chinese Academy of Sciences[Y651031589] ; West Light Foundation of the Chinese Academy of Sciences[XAB2016B01] ; National Natural Science Foundation of China (NSFC)[41801090] ; JPI-Climate |
| WOS研究方向 | Physical Geography ; Geology |
| 项目资助者 | Belmont Forum ; JPI-Climate, Collaborative Research Action INTEGRATE An integrated data-model study of interactions between tropical monsoons and extratropical climate variability and extremes (BMBF) ; NERC ; NSFC ; Swedish Research Council (Vetenskapsradet) ; State Key Laboratory of Loess and Quaternary Geology in the Institute of Earth Environment of the Chinese Academy of Sciences ; West Light Foundation of the Chinese Academy of Sciences ; National Natural Science Foundation of China (NSFC) ; JPI-Climate |
| WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
| WOS记录号 | WOS:000493220300011 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ieecas.cn/handle/361006/12851 |
| 专题 | 现代环境研究室 黄土与第四纪地质国家重点实验室（2010~） |
| 通讯作者 | Schneider, Lea |
| 作者单位 | 1.Justus Liebig Univ Giessen, Dept Geog Climatol Climate Dynam & Climate Change, Giessen, Germany 2.Stockholm Univ, Dept Hist, Stockholm, Sweden 3.Stockholm Univ, Bolin Ctr Climate Res, Stockholm, Sweden 4.Swedish Coll Adv Study, Uppsala, Sweden 5.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou, Gansu, Peoples R China 6.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China 7.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol, Beijing, Peoples R China 8.Lanzhou Univ, Coll Earth & Environm Sci, Minist Educ, Key Lab Western Chinas Environm Syst, Lanzhou 730000, Peoples R China 9.Northwest Univ, Coll Urban & Environm Sci, Shaanxi Key Lab Earth Surface Syst & Environm Car, Xian 710127, Shaanxi, Peoples R China 10.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China 11.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China 12.Univ East Anglia, Climat Res Unit Sch Environm Sci, Norwich, Norfolk, England 13.Justus Liebig Univ Giessen, Ctr Int Dev & Environm Res, Giessen, Germany |
| 推荐引用方式 GB/T 7714 | Schneider, Lea,Ljungqvist, Fredrik Charpentier,Yang, Bao,et al. The impact of proxy selection strategies on a millennium-long ensemble of hydroclimatic records in Monsoon Asia[J]. QUATERNARY SCIENCE REVIEWS,2019,223:14. |
| APA | Schneider, Lea.,Ljungqvist, Fredrik Charpentier.,Yang, Bao.,Chen, Fahu.,Chen, Jianhui.,...&Luterbacher, Juerg.(2019).The impact of proxy selection strategies on a millennium-long ensemble of hydroclimatic records in Monsoon Asia.QUATERNARY SCIENCE REVIEWS,223,14. |
| MLA | Schneider, Lea,et al."The impact of proxy selection strategies on a millennium-long ensemble of hydroclimatic records in Monsoon Asia".QUATERNARY SCIENCE REVIEWS 223(2019):14. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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