Global ocean carbon uptake: Magnitude, variability and trends SCIE SCOPUS

Cited 205 time in WEB OF SCIENCE Cited 194 time in Scopus
Title
Global ocean carbon uptake: 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.; Le Quere, C.; Heinze, C.; Schwinger, J.; Graven, H.; Khatiwala, S.
Publication Year
2013
Abstract
The globally integrated sea-air anthropogenic carbon dioxide (CO 2) 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 Pg C 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 Cyr-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. © Author(s) 2013.
ISSN
1726-4170
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/3287
DOI
10.5194/bg-10-1983-2013
Bibliographic Citation
Biogeosciences, v.10, no.3, pp.1983 - 2000, 2013
Publisher
European Geosciences Union (EGU).
Type
Article
Language
English
Document Type
Article
Publisher
European Geosciences Union (EGU).
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