FN Archimer Export Format
PT J
TI Millennial atmospheric CO2 changes linked to ocean ventilation modes over past 150,000 years
BT 
AF Yu, J.
   Anderson, R. F.
   Jin, Z. D.
   Ji, X.
   Thornalley, D. J. R.
   Wu, L.
   Thouveny, N.
   Cai, Y.
   Tan, L.
   Zhang, F.
   Menviel, L.
   Tian, J.
   Xie, X.
   Rohling, E. J.
   McManus, J. F.
AS 1:1,2,3;2:4;3:3,5,6;4:;5:7;6:1,8;7:9;8:6;9:3,6;10:;11:10;12:11;13:11;14:2,12;15:4;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:;13:;14:;15:;
C1 Laoshan Laboratory, Qingdao, China
   Research School of Earth Sciences, The Australian National University, Canberra, Australia
   SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an, China
   Lamont–Doherty Earth Observatory, Columbia University, Palisades, NY, USA
   Open Studio for Oceanic–Continental Climate and Environment Changes, Laoshan Laboratory, Qingdao, China
   Institute of Global Environmental Change, Xi’an Jiaotong University, Xi’an, China
   Department of Geography, University College London, London, UK
   Physical Oceanography Laboratory, Ocean University of China, Qingdao, China
   CEREGE, Aix-Marseille Univ, CNRS, IRD, INRA, Coll de Fr, Aix en Provence, France
   Climate Change Research Centre, Earth and Sustainability Science Research Centre, University of New South Wales, Sydney, New South Wales, Australia
   State Key Laboratory of Marine Geology, Tongji University, Shanghai, China
   Ocean and Earth Science, University of Southampton, National Oceanography Centre, Southampton, UK
C2 LAOSHAN LAB, CHINA
   UNIV AUSTRALIAN NATL, AUSTRALIA
   CHINESE ACAD SCI, CHINA
   UNIV COLUMBIA, USA
   LAOSHAN LAB, CHINA
   UNIV XI AN JIAO TONG, CHINA
   UNIV COLL LONDON, UK
   UNIV OCEAN CHINA, CHINA
   UNIV AIX MARSEILLE, FRANCE
   UNIV NEW S WALES, AUSTRALIA
   UNIV TONGJI, CHINA
   UNIV SOUTHAMPTON, UK
IF 18.3
TC 0
UR https://archimer.ifremer.fr/doc/00859/97071/105840.pdf
   https://archimer.ifremer.fr/doc/00859/97071/105841.pdf
   https://archimer.ifremer.fr/doc/00859/97071/105842.xlsx
   https://archimer.ifremer.fr/doc/00859/97071/105843.webp
   https://archimer.ifremer.fr/doc/00859/97071/105844.webp
   https://archimer.ifremer.fr/doc/00859/97071/105845.webp
   https://archimer.ifremer.fr/doc/00859/97071/105846.webp
   https://archimer.ifremer.fr/doc/00859/97071/105847.webp
   https://archimer.ifremer.fr/doc/00859/97071/105848.webp
   https://archimer.ifremer.fr/doc/00859/97071/105849.webp
   https://archimer.ifremer.fr/doc/00859/97071/105850.webp
   https://archimer.ifremer.fr/doc/00859/97071/105851.webp
   https://archimer.ifremer.fr/doc/00859/97071/105852.webp
LA English
DT Article
CR IMAGES 1-MD101
   MD 123 / GEOSCIENCES 1
   VT 90 / SOUC
BO Marion Dufresne
AB Ice core measurements show diverse atmospheric CO2 variations—increasing, decreasing or remaining stable—during millennial-scale North Atlantic cold periods called stadials. The reasons for these contrasting trends remain elusive. Ventilation of carbon-rich deep oceans can profoundly affect atmospheric CO2, but its millennial-scale history is poorly constrained. Here we present a well-dated high-resolution deep Atlantic acidity record over the past 150,000 years, which reveals five hitherto undetected modes of stadial ocean ventilation with different consequences for deep-sea carbon storage and associated atmospheric CO2 changes. Our data provide observational evidence to show that strong and often volumetrically extensive Southern Ocean ventilation released substantial amounts of deep-sea carbon during stadials when atmospheric CO2 rose prominently. By contrast, other stadials were characterized by weak ventilation via both Southern Ocean and North Atlantic, which promoted respired carbon accumulation and thus curtailed or reversed deep-sea carbon losses, resulting in diminished rises or even declines in atmospheric CO2. Our findings demonstrate that millennial-scale changes in deep-sea carbon storage and atmospheric CO2 are modulated by multiple ocean ventilation modes through the interplay of the two polar regions, rather than by the Southern Ocean alone, which is critical for comprehensive understanding of past and future carbon cycle adjustments to climate change. 
PY 2023
PD DEC
SO Nature Geoscience
SN 1752-0894
PU Springer Science and Business Media LLC
VL 16
IS 12
UT 001089878800001
BP 1166
EP 1173
DI 10.1038/s41561-023-01297-x
ID 97071
ER

EF