Deglacial Subantarctic CO2 outgassing driven by a weakened solubility pump
(2022) In Nature Communications 13(1).- Abstract
- The Subantarctic Southern Ocean has long been thought to be an importantcontributor to increases in atmospheric carbon dioxide partial pressure(pCO2) during glacial-interglacial transitions. Extensive studies suggest that aweakened biological pump, a process associated with nutrient utilizationefficiency, drove up surface-water pCO2in this region during deglaciations. Bycontrast, regional influences of the solubility pump, a process mainly linked totemperature variations, have been largely overlooked. Here, we evaluaterelative roles of the biological and solubility pumps in determining surface-water pCO2variabilities in the Subantarctic Southern Ocean during the lastdeglaciation, based on paired reconstructions of surface-water... (More)
- The Subantarctic Southern Ocean has long been thought to be an importantcontributor to increases in atmospheric carbon dioxide partial pressure(pCO2) during glacial-interglacial transitions. Extensive studies suggest that aweakened biological pump, a process associated with nutrient utilizationefficiency, drove up surface-water pCO2in this region during deglaciations. Bycontrast, regional influences of the solubility pump, a process mainly linked totemperature variations, have been largely overlooked. Here, we evaluaterelative roles of the biological and solubility pumps in determining surface-water pCO2variabilities in the Subantarctic Southern Ocean during the lastdeglaciation, based on paired reconstructions of surface-water pCO2,tem-perature, and nutrient utilization efficiency. We show that compared to thebiological pump, the solubility pumpimposed a strong impact on deglacialSubantarctic surface-water pCO2variabilities. Ourfindings therefore reveal apreviously underappreciated role of the solubility pump in modulatingdeglacial Subantarctic CO2release and possibly past atmospheric pCO2fluctuations. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/f7e42bdf-cc0e-405f-b7f5-f029eab92f75
- author
- Dai, Yuhao LU ; Yu, Jimin ; Ren, Haojia and Ji, Xuan
- organization
- publishing date
- 2022-09-03
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Nature Communications
- volume
- 13
- issue
- 1
- article number
- 5193
- publisher
- Nature Publishing Group
- external identifiers
-
- scopus:85137167407
- pmid:36057689
- ISSN
- 2041-1723
- DOI
- 10.1038/s41467-022-32895-9
- language
- English
- LU publication?
- yes
- id
- f7e42bdf-cc0e-405f-b7f5-f029eab92f75
- date added to LUP
- 2022-09-04 12:06:49
- date last changed
- 2022-12-05 03:00:02
@article{f7e42bdf-cc0e-405f-b7f5-f029eab92f75,
abstract = {{The Subantarctic Southern Ocean has long been thought to be an importantcontributor to increases in atmospheric carbon dioxide partial pressure(pCO2) during glacial-interglacial transitions. Extensive studies suggest that aweakened biological pump, a process associated with nutrient utilizationefficiency, drove up surface-water pCO2in this region during deglaciations. Bycontrast, regional influences of the solubility pump, a process mainly linked totemperature variations, have been largely overlooked. Here, we evaluaterelative roles of the biological and solubility pumps in determining surface-water pCO2variabilities in the Subantarctic Southern Ocean during the lastdeglaciation, based on paired reconstructions of surface-water pCO2,tem-perature, and nutrient utilization efficiency. We show that compared to thebiological pump, the solubility pumpimposed a strong impact on deglacialSubantarctic surface-water pCO2variabilities. Ourfindings therefore reveal apreviously underappreciated role of the solubility pump in modulatingdeglacial Subantarctic CO2release and possibly past atmospheric pCO2fluctuations.}},
author = {{Dai, Yuhao and Yu, Jimin and Ren, Haojia and Ji, Xuan}},
issn = {{2041-1723}},
language = {{eng}},
month = {{09}},
number = {{1}},
publisher = {{Nature Publishing Group}},
series = {{Nature Communications}},
title = {{Deglacial Subantarctic CO2 outgassing driven by a weakened solubility pump}},
url = {{http://dx.doi.org/10.1038/s41467-022-32895-9}},
doi = {{10.1038/s41467-022-32895-9}},
volume = {{13}},
year = {{2022}},
}