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| Titel |
Preformed and regenerated phosphate in ocean general circulation models: can right total concentrations be wrong? |
| VerfasserIn |
O. Duteil, W. Koeve, A. Oschlies, O. Aumont, D. Bianchi, L. Bopp, E. Galbraith, R. Matear, J. K. Moore, J. L. Sarmiento, J. Segschneider |
| 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 ; 9, no. 5 ; Nr. 9, no. 5 (2012-05-23), S.1797-1807 |
| Datensatznummer |
250007030
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| Publikation (Nr.) |
 copernicus.org/bg-9-1797-2012.pdf |
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| Zusammenfassung |
| Phosphate distributions simulated by seven state-of-the-art biogeochemical ocean circulation
models are evaluated against observations of global ocean nutrient distributions. The
biogeochemical models exhibit different structural complexities, ranging from simple
nutrient-restoring to multi-nutrient NPZD type models. We evaluate the simulations using the
observed volume distribution of phosphate. The errors in these simulated volume class
distributions are significantly larger when preformed phosphate (or regenerated phosphate) rather
than total phosphate is considered. Our analysis reveals that models can achieve similarly good
fits to observed total phosphate distributions for a~very different partitioning into preformed
and regenerated nutrient components. This has implications for the strength and potential climate
sensitivity of the simulated biological carbon pump. We suggest complementing the use of total
nutrient distributions for assessing model skill by an evaluation of the respective preformed and
regenerated nutrient components. |
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