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.

https://hal.archives-ouvertes.fr/hal-02292112/document

Consistently dated Atlantic sediment cores over the last 40 thousand years

Contrasting impacts of Dansgaard-Oeschger events over a western European latitudinal transect modulated by orbital parameters

https://www.cambridge.org/core/services/aop-cambridge-core/content/view/228F2B11A480ADE72A701FC9FCA7D220/S0033589400005640a.pdf/div-class-title-orbital-and-sub-orbital-scale-climate-impacts-on-vegetation-of-the-western-mediterranean-basin-over-the-last-48-000-yr-div.pdf

Orbital- and sub-orbital-scale climate impacts on vegetation of the western Mediterranean basin over the last 48,000 yr

https://bura.brunel.ac.uk/bitstream/2438/8657/2/Fulltext.pdf

C. Joli

Papers

Present-day and past (last 25000 years) marine pollen signal off western Iberia