DOI: 10.5194/cp-10-2237-2014
Scopus记录号: 2-s2.0-84908332968
论文题名: Implication of methodological uncertainties for mid-Holocene sea surface temperature reconstructions
作者: Hessler I. ; Harrison S.P. ; Kucera M. ; Waelbroeck C. ; Chen M.-T. ; Anderson C. ; De Vernal A. ; Fréchette B. ; Cloke-Hayes A. ; Leduc G. ; Londeix L.
刊名: Climate of the Past
ISSN: 18149324
出版年: 2014
卷: 10, 期: 6 起始页码: 2237
结束页码: 2252
语种: 英语
Scopus关键词: benchmarking
; dinoflagellate
; Holocene
; numerical model
; planktonic foraminifera
; reconstruction
; sea surface temperature
; uncertainty analysis
; Dinophyceae
; Foraminifera
英文摘要: We present and examine a multi-sensor global compilation of mid-Holocene (MH) sea surface temperatures (SST), based on Mg/Ca and alkenone palaeothermometry and reconstructions obtained using planktonic foraminifera and organic-walled dinoflagellate cyst census counts. We assess the uncertainties originating from using different methodologies and evaluate the potential of MH SST reconstructions as a benchmark for climate-model simulations. The comparison between different analytical approaches (time frame, baseline climate) shows the choice of time window for the MH has a negligible effect on the reconstructed SST pattern, but the choice of baseline climate affects both the magnitude and spatial pattern of the reconstructed SSTs. Comparison of the SST reconstructions made using different sensors shows significant discrepancies at a regional scale, with uncertainties often exceeding the reconstructed SST anomaly. Apparent patterns in SST may largely be a reflection of the use of different sensors in different regions. Overall, the uncertainties associated with the SST reconstructions are generally larger than the MH anomalies. Thus, the SST data currently available cannot serve as a target for benchmarking model simulations. Further evaluations of potential subsurface and/or seasonal artifacts that may contribute to obscure the MH SST reconstructions are urgently needed to provide reliable benchmarks for model evaluations. © Author(s) 2014. 资助项目: ARC, Australian Research Council
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/49194
Appears in Collections: 气候变化与战略
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Recommended Citation:
Hessler I.,Harrison S.P.,Kucera M.,et al. Implication of methodological uncertainties for mid-Holocene sea surface temperature reconstructions[J]. Climate of the Past,2014-01-01,10(6)