Multi-sensor global compilation of mid-Holocene sea surface temperatures, based on Mg/Ca and alkenone palaeothermometry and reconstructions obtained using planktonic foraminifera and organic-walled dinoflagellate cyst

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.

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Cite this as

Hessler, Ines, Harrison, Sandy P, Kucera, Michal, Waelbroeck, Claire, Chen, Min-Te, Anderson, Carin, de Vernal, Anne, Fréchette, Bianca, Cloke-Hayes, Angela, Leduc, Guillaume, Londeix, Laurent (2014). Dataset: Multi-sensor global compilation of mid-Holocene sea surface temperatures, based on Mg/Ca and alkenone palaeothermometry and reconstructions obtained using planktonic foraminifera and organic-walled dinoflagellate cyst. https://doi.org/10.1594/PANGAEA.830815

DOI retrieved: 2014

Additional Info

Field Value
Imported on November 30, 2024
Last update November 30, 2024
License CC-BY-3.0
Source https://doi.org/10.1594/PANGAEA.830815
Author Hessler, Ines
Given Name Ines
Family Name Hessler
More Authors
Harrison, Sandy P
Kucera, Michal
Waelbroeck, Claire
Chen, Min-Te
Anderson, Carin
de Vernal, Anne
Fréchette, Bianca
Cloke-Hayes, Angela
Leduc, Guillaume
Londeix, Laurent
Source Creation 2014
Publication Year 2014
Resource Type application/zip - filename: Hessler_2014
Subject Areas
Name: Atmosphere

Name: Lithosphere

Related Identifiers
Title: Implication of methodological uncertainties for mid-Holocene sea surface temperature reconstructions
Identifier: https://doi.org/10.5194/cp-10-2237-2014
Type: DOI
Relation: IsSupplementTo
Year: 2014
Source: Climate of the Past
Authors: Hessler Ines , Harrison S P , Kucera Michal , Waelbroeck Claire , Chen Min-Te , Anderson Carin , de Vernal Anne , Fréchette Bianca , Cloke-Hayes Angela , Leduc Guillaume , Londeix Laurent .