Global ocean carbon uptake

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Author(s) Wanninkhof, R., Park, G. H., Takahashi, T., Sweeney, C., Feely, R., Nojiri, Y., Gruber, N., Doney, S. C., McKinley, G. A., Lenton, A., Quere, C. le, Heinze, C., Schwinger, J., Graven, H., Khatiwala, S.
Publication Type Journal Items, Publication Status: Published
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Title Global ocean carbon uptake
Subtitle Magnitude, variability and trends
Author(s) Wanninkhof, R.
Park, G. H.
Takahashi, T.
Sweeney, C.
Feely, R.
Nojiri, Y.
Gruber, N.
Doney, S. C.
McKinley, G. A.
Lenton, A.
Quere, C. le
Heinze, C.
Schwinger, J.
Graven, H.
Khatiwala, S.
Journal or Series Title Biogeosciences
Volume Number 10
Issue Number 3
Start Page 1983
End Page 2000
ISSN 1726-4170
1726-4189
Publisher Copernicus
Publication Place Göttingen
Publication Date 2013-03
Abstract The globally integrated sea-air anthropogenic carbon dioxide (CO2) flux from 1990 to 2009r is determined from models and data-based approaches as part of the Regional Carbon Cycle Assessment and Processes (RECCAP) project. Numerical methods include ocean inverse models, atmospheric inverse models, and ocean general circulation models with parameterized biogeochemistry (OBGCMs). The median value of different approaches shows good agreement in average uptake. The best estimate of anthropogenic CO2 uptake for the time period based on a compilation of approaches is -2.0 PgC yr(-1). The interannual variability in the sea-air flux is largely driven by large-scale climate re-organizations and is estimated at 0.2 Pg C yr(-1) for the two decades with some systematic differences between approaches. The largest differences between approaches are seen in the decadal trends. The trends range from -0.13 (Pg C yr(-1)) decade(-1) to -0.50 (Pg C yr(-1)) decade(-1) for the two decades under investigation. The OBGCMs and the data-based sea-air CO2 flux estimates show appreciably smaller decadal trends than estimates based on changes in carbon inventory suggesting that methods capable of resolving shorter timescales are showing a slowing of the rate of ocean CO2 uptake. RECCAP model outputs for five decades show similar differences in trends between approaches.
DOI 10.5194/bg-10-1983-2013
Document Type Article
Publication Status Published
Language English
Assigned Organisational Unit(s) 03731
Organisational Unit(s)
NEBIS System Number 006289717
Source Database ID WOS-000317010600048
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@article{Wnnnkhf2013,
  author = "Wanninkhof, R. and Park, G. H. and Takahashi, T. and Sweeney, C. and Feely, R. and Nojiri, Y. and Gruber, N. and Doney, S. C. and McKinley, G. A. and Lenton, A. and Quere, C. le and Heinze, C. and Schwinger, J. and Graven, H. and Khatiwala, S.",
  title = "{G}lobal ocean carbon uptake: {M}agnitude, variability and trends",
  journal = "Biogeosciences",
  year = 2013,
  volume = "10",
  number = "3",
  pages = "1983--2000",
  month = mar,
}


E-Citations record created: Tue, 21 May 2013, 08:51:43 CET