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| Titel |
Interannual sea–air CO2 flux variability from an observation-driven ocean mixed-layer scheme |
| VerfasserIn |
C. Rödenbeck, D. C. E. Bakker, N. Metzl, A. Olsen, C. Sabine, N. Cassar, F. Reum, R. F. Keeling, M. Heimann |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1726-4170
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| Digitales Dokument |
URL |
| Erschienen |
In: Biogeosciences ; 11, no. 17 ; Nr. 11, no. 17 (2014-09-01), S.4599-4613 |
| Datensatznummer |
250117570
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| Publikation (Nr.) |
 copernicus.org/bg-11-4599-2014.pdf |
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| Zusammenfassung |
| Interannual anomalies in the sea–air carbon dioxide (CO2) exchange
have been estimated from surface-ocean CO2 partial pressure
measurements. Available data are sufficient to constrain these anomalies in
large parts of the tropical and North Pacific and in the North Atlantic, in
some areas covering the period from the mid 1980s to 2011. Global interannual
variability is estimated as about 0.31 Pg C yr−1 (temporal standard
deviation 1993–2008). The tropical Pacific accounts for a large fraction of
this global variability, closely tied to El Niño–Southern Oscillation
(ENSO). Anomalies occur more than 6 months later in the east than in the
west. The estimated amplitude and ENSO response are roughly consistent with
independent information from atmospheric oxygen data. This both supports the
variability estimated from surface-ocean carbon data and demonstrates the
potential of the atmospheric oxygen signal to constrain ocean biogeochemical
processes. The ocean variability estimated from surface-ocean carbon data can
be used to improve land CO2 flux estimates from atmospheric inversions. |
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