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Consistently dated Atlantic sediment cores over the last 40 thousand years
VÁZQUEZ RIVEIROS, Natalia
Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
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Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
VÁZQUEZ RIVEIROS, Natalia
Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
HAJDAS, Irka
Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] [ETH Zürich]
Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] [ETH Zürich]
MOLLENHAUER, Gesine
Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine [AWI]
Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine [AWI]
VIDAL, Laurence
Centre Européen de Recherche et d'Enseignement des Géosciences de l'Environnement [CEREGE]
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Centre Européen de Recherche et d'Enseignement des Géosciences de l'Environnement [CEREGE]
Language
EN
Article de revue
This item was published in
Scientific Data. 2019-12, vol. 6, n° 1, p. 1-12
English Abstract
Rapid changes in ocean circulation and climate have been observed in marine-sediment and ice cores over the last glacial period and deglaciation, highlighting the non-linear character of the climate system and underlining ...Read more >
Rapid changes in ocean circulation and climate have been observed in marine-sediment and ice cores over the last glacial period and deglaciation, highlighting the non-linear character of the climate system and underlining the possibility of rapid climate shifts in response to anthropogenic greenhouse gas forcing. To date, these rapid changes in climate and ocean circulation are still not fully explained. One obstacle hindering progress in our understanding of the interactions between past ocean circulation and climate changes is the difficulty of accurately dating marine cores. Here, we present a set of 92 marine sediment cores from the Atlantic Ocean for which we have established age-depth models that are consistent with the Greenland GICC05 ice core chronology, and computed the associated dating uncertainties, using a new deposition modeling technique. This is the first set of consistently dated marine sediment cores enabling paleoclimate scientists to evaluate leads/lags between circulation and climate changes over vast regions of the Atlantic Ocean. Moreover, this data set is of direct use in paleoclimate modeling studies.Read less <
Keywords
c-14 reservoir ages
millennial-scale changes
English Keywords
deep-water
north-atlantic
greenland ice-cores
sea-surface temperature
marine isotopic stage-3
western tropical atlantic
glacial period
productivity changes
European Project
Elucidating the Causes and Effects of Atlantic Circulation Changes through Model-Data Integration