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| O'Neill, Cameron M.; Hogg, Andrew Mcc.; Ellwood, Michael J.; Eggins, Stephen M.; Opdyke, Bradley N.. |
| We construct a carbon cycle box model to process observed or inferred geochemical evidence from modern and paleo settings. The [simple carbon project] model v1.0 (SCP-M) combines a modern understanding of the ocean circulation regime with the Earth's carbon cycle. SCP-M estimates the concentrations of a range of elements within the carbon cycle by simulating ocean circulation, biological, chemical, atmospheric and terrestrial carbon cycle processes. The model is capable of reproducing both paleo and modern observations and aligns with CMIP5 model projections. SCP-M's fast run time, simplified layout and matrix structure render it a flexible and easy-to-use tool for paleo and modern carbon cycle simulations. The ease of data integration also enables... |
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| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00676/78806/81029.pdf |
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| Sadekov, Aleksey; Eggins, Stephen M.; De Deckker, Patrick; Ninnemann, Ulysses; Kuhnt, Wolfgang; Bassinot, Franck. |
| Laser-ablation inductively coupled plasma-mass spectrometry microanalyses of Mg/Ca across individual final chambers of three planktonic foraminifera species, Globigerinoides ruber, G. sacculifer, and Pulleniatina obliquiloculata, reveal significant interspecies differences in test Mg concentrations. Whereas these three species have similar Mg/Ca values at low sea surface temperatures (similar to 22 degrees C), they diverge markedly at high sea surface temperatures (similar to 29 degrees C). Explanations for these differences in species Mg/Ca values based on detailed comparison of species intratest Mg/Ca distributions suggest that compositional variability within tests cannot account for the observed deviation of species Mg/Ca values in warm-water... |
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| Ano: 2009 |
URL: https://archimer.ifremer.fr/doc/00218/32934/31448.pdf |
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