Evaluating model outputs using integrated global speleothem records of climate change since the last glacial
文献类型：期刊论文
| 作者 | Comas-Bru, Laia72,73; Harrison, Sandy P.73; Werner, Martin71; Rehfeld, Kira70; Scroxton, Nick69; Veiga-Pires, Cristina68; Ahmad, Syed Masood67; Brahim, Yassine Ait66; Mozhdehi, Sahar Amirnezhad72; Arienzo, Monica65 |
| 刊名 | CLIMATE OF THE PAST
 |
| 出版日期 | 2019-08-09 |
| 卷号 | 15期号:4页码:1557-1579 |
| ISSN号 | 1814-9324 |
| DOI | 10.5194/cp-15-1557-2019 |
| 通讯作者 | Comas-Bru, Laia(l.comasbru@reading.ac.uk) |
| 英文摘要 | Although quantitative isotope data from speleothems has been used to evaluate isotope-enabled model simulations, currently no consensus exists regarding the most appropriate methodology through which to achieve this. A number of modelling groups will be running isotope-enabled palaeoclimate simulations in the framework of the Coupled Model Intercomparison Project Phase 6, so it is timely to evaluate different approaches to using the speleothem data for data-model comparisons. Here, we illustrate this using 456 globally distributed speleothem delta O-18 records from an updated version of the Speleothem Isotopes Synthesis and Analysis (SISAL) database and palaeoclimate simulations generated using the ECHAM5-wiso isotope-enabled atmospheric circulation model. We show that the SISAL records reproduce the first-order spatial patterns of isotopic variability in the modern day, strongly supporting the application of this dataset for evaluating model-derived isotope variability into the past. However, the discontinuous nature of many speleothem records complicates the process of procuring large numbers of records if data-model comparisons are made using the traditional approach of comparing anomalies between a control period and a given palaeoclimate experiment. To circumvent this issue, we illustrate techniques through which the absolute isotope values during any time period could be used for model evaluation. Specifically, we show that speleothem isotope records allow an assessment of a model's ability to simulate spatial isotopic trends. Our analyses provide a protocol for using speleothem isotope data for model evaluation, including screening the observations to take into account the impact of speleothem mineralogy on delta O-18 values, the optimum period for the modern observational baseline and the selection of an appropriate time window for creating means of the isotope data for palaeo-time-slices. |
| WOS关键词 | STABLE-ISOTOPE VARIATIONS ; GROWTH FREQUENCY VARIATIONS ; GENERAL-CIRCULATION MODEL ; DELTA-O-18 WATER ISOTOPE ; HIGH-RESOLUTION ; OXYGEN-ISOTOPE ; ASIAN MONSOON ; ATMOSPHERIC CIRCULATION ; NORTH-ATLANTIC ; PMIP4 CONTRIBUTION |
| 资助项目 | European Geosciences Union[W2017/413] ; Irish Centre for Research in Applied Geosciences (iCRAG) ; European Association of Geochemistry (Early Career Ambassadors program 2017) ; Quaternary Research Association UK ; Navarino Environmental Observatory, Stockholm University ; University College Dublin, Savillex (UK)[SF1428] ; Ibn Zohr University, Morocco ; University of Reading ; European Research Council[694481] ; Natural Environment Research Council (JPI-Belmont project PAleao-Constraints on Monsoon Evolution and Dynamics (PACMEDY)) ; Geological Survey Ireland[2017-SC-056] ; Royal Irish Academy ; Portuguese Science Foundation[UID/MAR/00350/2013] ; Deutsche Forschungsgemeinschaft[RE3994/2-1] ; Past Global Changes (PAGES) programme |
| WOS研究方向 | Geology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| 出版者 | COPERNICUS GESELLSCHAFT MBH |
| WOS记录号 | WOS:000480317900001 |
| 资助机构 | European Geosciences Union ; Irish Centre for Research in Applied Geosciences (iCRAG) ; European Association of Geochemistry (Early Career Ambassadors program 2017) ; Quaternary Research Association UK ; Navarino Environmental Observatory, Stockholm University ; University College Dublin, Savillex (UK) ; Ibn Zohr University, Morocco ; University of Reading ; European Research Council ; Natural Environment Research Council (JPI-Belmont project PAleao-Constraints on Monsoon Evolution and Dynamics (PACMEDY)) ; Geological Survey Ireland ; Royal Irish Academy ; Portuguese Science Foundation ; Deutsche Forschungsgemeinschaft ; Past Global Changes (PAGES) programme |
| 源URL | [http://ir.ieecas.cn/handle/361006/13564]  |
| 专题 | 地球环境研究所_现代环境研究室 |
| 通讯作者 | Comas-Bru, Laia |
| 作者单位 | 1.Univ Rouen Normandie, IDEES UMR CNRS 6266, Dept Geog, Mont St Aignan, France 2.Australian Natl Univ, ARC Ctr Excellence Climate Syst Sci, Canberra, ACT, Australia 3.Australian Natl Univ, Res Sch Earth Sci, Canberra, ACT, Australia 4.Univ Calif Davis, Dept Earth & Planetary Sci, Davis, CA 95616 USA 5.Univ Texas Austin, Inst Environm Sci, 2275 Speedway, Austin, TX 78712 USA 6.Vrije Univ Brussel, Dept Chem, Analyt, Environm & Geochem, Brussels, Belgium 7.Middle East Tech Univ, Dept Geol Engn, Ankara, Turkey 8.ANSTO, Lucas Heights, NSW, Australia 9.Univ Fed Fluminense, Dept Geoquim, Niteroi, RJ, Brazil 10.British Geol Survey, NERC Isotope Geosci Facil, Nottingham, England |
| 推荐引用方式 GB/T 7714 | Comas-Bru, Laia,Harrison, Sandy P.,Werner, Martin,et al. Evaluating model outputs using integrated global speleothem records of climate change since the last glacial[J]. CLIMATE OF THE PAST,2019,15(4):1557-1579. |
| APA | Comas-Bru, Laia.,Harrison, Sandy P..,Werner, Martin.,Rehfeld, Kira.,Scroxton, Nick.,...&Zhang, Haiwei.(2019).Evaluating model outputs using integrated global speleothem records of climate change since the last glacial.CLIMATE OF THE PAST,15(4),1557-1579. |
| MLA | Comas-Bru, Laia,et al."Evaluating model outputs using integrated global speleothem records of climate change since the last glacial".CLIMATE OF THE PAST 15.4(2019):1557-1579. |
入库方式： OAI收割
来源：地球环境研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。