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The oceanic anthropogenic CO2 sink: Storage, air‐sea fluxes, and transports over the industrial era

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DeVries, Tim·2014·Global Biogeochemical Cycles

Abstract

This study presents a new estimate of the oceanic anthropogenic CO 2(C ant) sink over the industrial era (1780 to present), from assimilation of potential temperature, salinity, radiocarbon, and CFC‐11 observations in a global steady state ocean circulation inverse model (OCIM). This study differs from previous data‐based estimates of the oceanic C ant sink in that dynamical constraints on ocean circulation are accounted for, and the ocean circulation is explicitly modeled, allowing the calculation of oceanic C ant storage, air‐sea fluxes, and transports in a consistent manner. The resulting uncertainty of the OCIM‐estimated C ant uptake, transport, and storage is significantly smaller than the comparable uncertainty from purely data‐based or model‐based estimates. The OCIM‐estimated oceanic C ant storage is 160–166 PgC in 2012, and the oceanic C ant uptake rate averaged over the period 2000–2010 is 2.6 PgC yr−1 or about 30% of current anthropogenic CO 2 emissions. This result implies a residual (primarily terrestrial) C ant sink of about 1.6 PgC yr−1 for the same period. The Southern Ocean is the primary conduit for C ant entering the ocean, taking up about 1.1 PgC yr−1 in 2012, which represents about 40% of the contemporary oceanic C ant uptake. It is suggested that the most significant source of remaining uncertainty in the oceanic C ant sink is due to potential variability in the ocean circulation over the industrial era.

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Metadata

Authors
DeVries, T.
Venue
Global Biogeochemical Cycles
Published
2014-07
Volume
28
Issue
7
Pages
631-647
ISSN
  • 0886-6236 (ISSN-L)
  • 1944-9224
OpenAlex
W2056136211
Cited by
356
References
4
FWCI
8.55
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: The oceanic anthropogenic CO2 sink: Storage, air‐sea fluxes, and transports over the industrial era. https://app.cochat.ai/papers/10.1002/2013gb004739
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DeVries, T. (2014). The oceanic anthropogenic CO2 sink: Storage, air‐sea fluxes, and transports over the industrial era. Global Biogeochemical Cycles. https://doi.org/10.1002/2013gb004739

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