Evolution of subpolar North Atlantic surface circulation since the early Holocene inferred from planktic foraminifera faunal and stable isotope records

Staines-Urías, Francisca; Kuijpers, Antoon; Korte, Christoph

doi:10.1016/j.quascirev.2013.06.016

Cited by 20 publications

(16 citation statements)

References 129 publications

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“…Our reconstruction is in accordance with numerus studies from the NAC's main flow path that report a predominant warm/saline water influence on regional surface and subsurface water conditions during this time (e.g. Rasmussen et al 2002;Risebrobakken et al 2003Risebrobakken et al , 2011Solignac et al 2004;Rasmussen & Thomsen 2010;Staines-Ur ıas et al 2013). The same accounts for the NAC's offshoots, such as the WSC (M€ uller et al 2012;Werner et al 2013;Rasmussen et al 2014), the IC (e.g.…”

Section: Discussionsupporting

confidence: 89%

“…5F, G) waters parallel reports of markedly less warmth (heat) along the NAC's main route (e.g. Risebrobakken et al 2003;Andersen et al 2004a;Rasmussen & Thomsen 2010;Sejrup et al 2011;Dylmer et al 2013;Staines-Ur ıas et al 2013;Dourarin et al 2016). Upstream, studies from the eastern Fram Strait (M€ uller et al 2012;Werner et al 2013;Rasmussen et al 2014) and from the central East Greenland shelf ( Fig.…”

Section: Regional Oceanic Implicationssupporting

confidence: 74%

“…; Rasmussen & Thomsen ; Staines‐Urías et al . ). The same accounts for the NAC's offshoots, such as the WSC (Müller et al .…”

Section: Discussionmentioning

confidence: 97%

“…; Rasmussen & Thomsen ; Staines‐Urías et al . ) as well as reduced SSTs along the NAC/NwAC (e.g. Calvo et al .…”

Section: Discussionmentioning

confidence: 99%

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Subarctic Front migration at the Reykjanes Ridge during the mid‐ to late Holocene: evidence from planktic foraminifera

Perner

Moros

Jansen

et al. 2017

Boreas

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Prins, M. A. 2018 (January): Subarctic Front migration at the Reykjanes Ridge during the mid-to late Holocene: evidence from planktic foraminifera. Boreas, Vol. 47, pp. 175-188. https://doi.org/10.1111/bor.12263. ISSN 0300-9483.Expansion of fresh and sea-ice loaded surface waters from the Arctic Ocean into the sub-polar North Atlantic is suggested to modulate the northward heat transport within the North Atlantic Current (NAC). The Reykjanes Ridge south of Iceland is a suitable area to reconstruct changes in the mid-to late Holocene fresh and sea-ice loaded surface water expansion, which is marked by the Subarctic Front (SAF). Here, shifts in the location of the SAF result from the interaction of freshwater expansion and inflow of warmer and saline (NAC) waters to the Ridge. Using planktic foraminiferal assemblage and concentration data from a marine sediment core on the eastern Reykjanes Ridge elucidates SAF location changes and thus, changes in the water-mass composition (upper~200 m) during the last c. 5.8 ka BP. Our foraminifer data highlight a late Holocene shift (at c. 3.0 ka BP) in water-mass composition at the Reykjanes Ridge, which reflects the occurrence of cooler and fresher surface waters when compared to the midHolocene. We document two phases of SAF presence at the study site: from (i) c. 5.5 to 5.0 ka BP and (ii) c. 2.7 to 1.5 ka BP. Both phases are characterized by marked increases in the planktic foraminiferal concentration, which coincides with freshwater expansions and warm subsurface water conditions within the sub-polar North Atlantic. We link the SAF changes, from c. 2.7 to 1.5 ka BP, to a strengthening of the East Greenland Current and awarming in the NAC, as identified by various studies underlying these two currents. From c. 1.5 ka BP onwards, we record a prominent subsurface cooling and continued occurrence of fresh and sea-ice loaded surface waters at the study site. This implies that the SAF migrated to the southeast of our core site during the last millennium.

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Section: Discussionsupporting

confidence: 89%

Section: Regional Oceanic Implicationssupporting

confidence: 74%

See 2 more Smart Citations

Subarctic Front migration at the Reykjanes Ridge during the mid‐ to late Holocene: evidence from planktic foraminifera

Perner

Moros

Jansen

et al. 2017

Boreas

Self Cite

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“…Such oceanic cooling may be caused by the reorganization in the North Atlantic circulation main gyres due to boreal ice‐sheet melting (e.g. Street‐Perrott and Perrott, ; Staines‐Urías et al ., ) and/or to local sea surface temperature changes in response to Morocco upwelling dynamics (e.g. Penaud et al ., ).…”

Section: Discussionmentioning

confidence: 99%

An 18 000‐year pollen and sedimentary record from the cedar forests of the Middle Atlas, Morocco

Bait

Rhoujjati

Eynaud

et al. 2014

J Quaternary Science

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A new record from the heart of the Moroccan Middle Atlas cedar forests spans the last 18 000 years and provides valuable insight into our understanding of the natural vegetation and environmental changes. The approach is based on the study of pollen content, geochemical elements and grain size analysis. The pollen data indicate that the vegetation was dominated by herbaceous plants until 9000 BP. Such open landscape allowed greater soil erosion and an input of chemical elements from the watershed. After 9000 BP, tree cover, mainly oak, increased slightly and was accompanied by a higher taxonomic diversity. However, several steppe elements remain well represented in the area until 5000 BP, which suggests that the climate was rather dry during the first part of the Holocene. After 6000 BP, the climate became more favourable to expansion of the forest ecosystems, including Cedrus atlantica, thereby reducing erosion. A strong reduction of the tree pollen percentages is recorded after 2000 BP, which may be related to increasing human activities during the Roman period. These forest changes are concomitant with an increase of lead and copper concentrations in the record, probably related to Roman metalworking activities

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Compiling multiproxy quantitative hydrographic data from Holocene marine archives in the North Atlantic: A way to decipher oceanic and climatic dynamics and natural modes?

Eynaud

Mary

Zumaque

et al. 2018

Global and Planetary Change

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Evolution of subpolar North Atlantic surface circulation since the early Holocene inferred from planktic foraminifera faunal and stable isotope records

Cited by 20 publications

References 129 publications

Subarctic Front migration at the Reykjanes Ridge during the mid‐ to late Holocene: evidence from planktic foraminifera

Subarctic Front migration at the Reykjanes Ridge during the mid‐ to late Holocene: evidence from planktic foraminifera

An 18 000‐year pollen and sedimentary record from the cedar forests of the Middle Atlas, Morocco

Compiling multiproxy quantitative hydrographic data from Holocene marine archives in the North Atlantic: A way to decipher oceanic and climatic dynamics and natural modes?

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