Early and middle Holocene in the Aegean Sea: interplay between high and low latitude climate variability
Changes in the orbital parameters, solar output, and ocean circulation are widely considered as main drivers of the Holocene climate. Yet, the interaction between these forcings and the role that they play to produce the pattern of changes observed in different domains of the climate system remain d...
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ftsouthampton:oai:eprints.soton.ac.uk:73087 2023-07-30T04:03:56+02:00 Early and middle Holocene in the Aegean Sea: interplay between high and low latitude climate variability Marino, Gianluca Rohling, Eelco J. Sangiorgi, Francesca Hayes, Angela Casford, James L. Lotter, André F. Kucera, Michal Brinkhuis, Henk 2009 https://eprints.soton.ac.uk/73087/ unknown Marino, Gianluca, Rohling, Eelco J., Sangiorgi, Francesca, Hayes, Angela, Casford, James L., Lotter, André F., Kucera, Michal and Brinkhuis, Henk (2009) Early and middle Holocene in the Aegean Sea: interplay between high and low latitude climate variability. Quaternary Science Reviews, 28 (27-28), 3246-3262. (doi:10.1016/j.quascirev.2009.08.011 <http://dx.doi.org/10.1016/j.quascirev.2009.08.011>). Article PeerReviewed 2009 ftsouthampton https://doi.org/10.1016/j.quascirev.2009.08.011 2023-07-09T21:08:59Z Changes in the orbital parameters, solar output, and ocean circulation are widely considered as main drivers of the Holocene climate. Yet, the interaction between these forcings and the role that they play to produce the pattern of changes observed in different domains of the climate system remain debated. Here, we present new early to middle Holocene season-specific sea surface temperature (SST) and d18Oseawater results, based on organic-walled dinoflagellate cyst and planktonic foraminiferal data from two sediment cores located in the central (SL21) and south-eastern (LC21) Aegean Sea (eastern Mediterranean). Today, this region is affected by high to mid latitude climate in winter and tropical/ subtropical climate in summer. The reconstructed d18Oseawater from LC21 displays a marked (w1.3%) negative shift between 10.7 and 9.7 ka BP, which represents the regional expression of the orbitally driven African monsoon intensification and attendant freshwater flooding into the eastern Mediterra- nean. A virtually contemporaneous shift, of the same sign and magnitude, is apparent in the d18Ospeleothem record from Soreq Cave (Northern Israel), an important part of which may therefore reflect a change in the isotopic composition of the moisture source region (Aegean and Levantine Seas). Our SST reconstructions show that Aegean winter SSTs decreased in concert with intensifications of the Siberian High, as reflected in the GISP2 nss [Kþ] record. Specifically, three distinct sea surface cooling events at 10.5, 9.5–9.03 and 8.8–7.8 ka BP in the central Aegean Sea match increases in GISP2 nss [Kþ]. These events also coincide with dry interludes in Indian monsoon, hinting at large (hemispheric) scale tele- connections during the early Holocene on centennial timescales. A prominent short-lived (w150 years) cooling event in core SL21 – centred on 8.2 ka BP – is coeval to the ‘8.2 ka BP event’ in the Greenland d18Oice, which is commonly linked to a melt-water related perturbation of the Atlantic Meridional Overturning ... Article in Journal/Newspaper Greenland University of Southampton: e-Prints Soton Greenland Indian Quaternary Science Reviews 28 27-28 3246 3262 |
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University of Southampton: e-Prints Soton |
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ftsouthampton |
language |
unknown |
description |
Changes in the orbital parameters, solar output, and ocean circulation are widely considered as main drivers of the Holocene climate. Yet, the interaction between these forcings and the role that they play to produce the pattern of changes observed in different domains of the climate system remain debated. Here, we present new early to middle Holocene season-specific sea surface temperature (SST) and d18Oseawater results, based on organic-walled dinoflagellate cyst and planktonic foraminiferal data from two sediment cores located in the central (SL21) and south-eastern (LC21) Aegean Sea (eastern Mediterranean). Today, this region is affected by high to mid latitude climate in winter and tropical/ subtropical climate in summer. The reconstructed d18Oseawater from LC21 displays a marked (w1.3%) negative shift between 10.7 and 9.7 ka BP, which represents the regional expression of the orbitally driven African monsoon intensification and attendant freshwater flooding into the eastern Mediterra- nean. A virtually contemporaneous shift, of the same sign and magnitude, is apparent in the d18Ospeleothem record from Soreq Cave (Northern Israel), an important part of which may therefore reflect a change in the isotopic composition of the moisture source region (Aegean and Levantine Seas). Our SST reconstructions show that Aegean winter SSTs decreased in concert with intensifications of the Siberian High, as reflected in the GISP2 nss [Kþ] record. Specifically, three distinct sea surface cooling events at 10.5, 9.5–9.03 and 8.8–7.8 ka BP in the central Aegean Sea match increases in GISP2 nss [Kþ]. These events also coincide with dry interludes in Indian monsoon, hinting at large (hemispheric) scale tele- connections during the early Holocene on centennial timescales. A prominent short-lived (w150 years) cooling event in core SL21 – centred on 8.2 ka BP – is coeval to the ‘8.2 ka BP event’ in the Greenland d18Oice, which is commonly linked to a melt-water related perturbation of the Atlantic Meridional Overturning ... |
format |
Article in Journal/Newspaper |
author |
Marino, Gianluca Rohling, Eelco J. Sangiorgi, Francesca Hayes, Angela Casford, James L. Lotter, André F. Kucera, Michal Brinkhuis, Henk |
spellingShingle |
Marino, Gianluca Rohling, Eelco J. Sangiorgi, Francesca Hayes, Angela Casford, James L. Lotter, André F. Kucera, Michal Brinkhuis, Henk Early and middle Holocene in the Aegean Sea: interplay between high and low latitude climate variability |
author_facet |
Marino, Gianluca Rohling, Eelco J. Sangiorgi, Francesca Hayes, Angela Casford, James L. Lotter, André F. Kucera, Michal Brinkhuis, Henk |
author_sort |
Marino, Gianluca |
title |
Early and middle Holocene in the Aegean Sea: interplay between high and low latitude climate variability |
title_short |
Early and middle Holocene in the Aegean Sea: interplay between high and low latitude climate variability |
title_full |
Early and middle Holocene in the Aegean Sea: interplay between high and low latitude climate variability |
title_fullStr |
Early and middle Holocene in the Aegean Sea: interplay between high and low latitude climate variability |
title_full_unstemmed |
Early and middle Holocene in the Aegean Sea: interplay between high and low latitude climate variability |
title_sort |
early and middle holocene in the aegean sea: interplay between high and low latitude climate variability |
publishDate |
2009 |
url |
https://eprints.soton.ac.uk/73087/ |
geographic |
Greenland Indian |
geographic_facet |
Greenland Indian |
genre |
Greenland |
genre_facet |
Greenland |
op_relation |
Marino, Gianluca, Rohling, Eelco J., Sangiorgi, Francesca, Hayes, Angela, Casford, James L., Lotter, André F., Kucera, Michal and Brinkhuis, Henk (2009) Early and middle Holocene in the Aegean Sea: interplay between high and low latitude climate variability. Quaternary Science Reviews, 28 (27-28), 3246-3262. (doi:10.1016/j.quascirev.2009.08.011 <http://dx.doi.org/10.1016/j.quascirev.2009.08.011>). |
op_doi |
https://doi.org/10.1016/j.quascirev.2009.08.011 |
container_title |
Quaternary Science Reviews |
container_volume |
28 |
container_issue |
27-28 |
container_start_page |
3246 |
op_container_end_page |
3262 |
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1772815062512173056 |