FN Archimer Export Format
PT J
TI Deglacial Subantarctic CO2 outgassing driven by a weakened solubility pump
BT 
AF Dai, Yuhao
   Yu, Jimin
   Ren, Haojia
   Ji, Xuan
AS 1:1;2:2;3:3;4:1;
FF 1:;2:;3:;4:;
C1 Research School of Earth Sciences, The Australian National University, Canberra, ACT, Australia
   Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, China
   Department of Geosciences, National Taiwan University, Taipei, Taiwan
C2 UNIV AUSTRALIAN NATL, AUSTRALIA
   QNLM, CHINA
   UNIV NATL TAIWAN NTU, TAIWAN
IN DOAJ
IF 16.6
TC 4
UR https://archimer.ifremer.fr/doc/00792/90367/95888.pdf
   https://archimer.ifremer.fr/doc/00792/90367/95889.pdf
   https://archimer.ifremer.fr/doc/00792/90367/95890.pdf
LA English
DT Article
CR IMAGES 3-IPHIS-MD106
BO Marion Dufresne
AB The Subantarctic Southern Ocean has long been thought to be an important contributor to increases in atmospheric carbon dioxide partial pressure (pCO2) during glacial-interglacial transitions. Extensive studies suggest that a weakened biological pump, a process associated with nutrient utilization efficiency, drove up surface-water pCO2 in this region during deglaciations. By contrast, regional influences of the solubility pump, a process mainly linked to temperature variations, have been largely overlooked. Here, we evaluate relative roles of the biological and solubility pumps in determining surface-water pCO2 variabilities in the Subantarctic Southern Ocean during the last deglaciation, based on paired reconstructions of surface-water pCO2, temperature, and nutrient utilization efficiency. We show that compared to the biological pump, the solubility pump imposed a strong impact on deglacial Subantarctic surface-water pCO2 variabilities. Our findings therefore reveal a previously underappreciated role of the solubility pump in modulating deglacial Subantarctic CO2 release and possibly past atmospheric pCO2 fluctuations. 
PY 2022
PD SEP
SO Nature Communications
SN 2041-1723
PU Springer Science and Business Media LLC
VL 13
IS 1
UT 000849494300001
DI 10.1038/s41467-022-32895-9
ID 90367
ER

EF