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The impact of proxy selection strategies on a millennium-long ensemble of hydroclimatic records in Monsoon Asia
Schneider, L (Schneider, Lea)1; Ljungqvist, FC (Ljungqvist, Fredrik Charpentier)2,3,4; Yang, B (Yang, Bao)5; Chen, FH (Chen, Fahu)6,7,8; Chen, JH (Chen, Jianhui)8; Li, JY (Li, Jianyong)9,10; Hao, ZX (Hao, Zhixin)11; Ge, QS (Ge, Quansheng)11; Talento, S (Talento, Stefanie)1; Osborn, TJ (Osborn, Timothy J.)12; Luterbacher, J (Luterbacher, Juerg)1,13
Source PublicationQUATERNARY SCIENCE REVIEWS
2019
Volume223Issue:0Pages:105917
DOI10.1016/j.quascirev.2019.105917
Abstract

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.

Subject AreaGeography
WOS IDWOS:000493220300011
Language英语
Indexed BySCI
KeywordNorthern-hemisphere Temperature Tibetan Plateau Summer Monsoon Central China Late-holocene Tree-rings Ice-age Precipitation Variability Streamflow Reconstruction Climatic Variability
WOS Research AreaPhysical Geography ; Geology
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary
Cooperation Status国际
ISSN0277-3791
Department高寒生态重点实验室
URL查看原文
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/9107
Collection图书馆
Corresponding AuthorSchneider, L (Schneider, Lea)
Affiliation1.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.
Recommended Citation
GB/T 7714
Schneider, L ,Ljungqvist, FC ,Yang, B ,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(0):105917.
APA Schneider, L .,Ljungqvist, FC .,Yang, B .,Chen, FH .,Chen, JH .,...&Luterbacher, J .(2019).The impact of proxy selection strategies on a millennium-long ensemble of hydroclimatic records in Monsoon Asia.QUATERNARY SCIENCE REVIEWS,223(0),105917.
MLA Schneider, L ,et al."The impact of proxy selection strategies on a millennium-long ensemble of hydroclimatic records in Monsoon Asia".QUATERNARY SCIENCE REVIEWS 223.0(2019):105917.
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