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| Titel |
Scaling laws for perturbations in the ocean–atmosphere system following large CO2 emissions |
| VerfasserIn |
N. Towles, P. Olson, A. Gnanadesikan |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1814-9324
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| Digitales Dokument |
URL |
| Erschienen |
In: Climate of the Past ; 11, no. 7 ; Nr. 11, no. 7 (2015-07-29), S.991-1007 |
| Datensatznummer |
250117362
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| Publikation (Nr.) |
 copernicus.org/cp-11-991-2015.pdf |
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| Zusammenfassung |
| Scaling relationships are found for perturbations to
atmosphere and ocean variables from large transient CO2
emissions. Using the Long-term Ocean-atmosphere-Sediment CArbon cycle Reservoir (LOSCAR) model (Zeebe et al., 2009;
Zeebe, 2012b), we calculate perturbations to atmosphere temperature, total carbon, ocean temperature, total ocean carbon, pH, alkalinity, marine-sediment carbon, and carbon-13 isotope anomalies
in the ocean and atmosphere resulting from idealized CO2
emission events. The peak perturbations in the atmosphere and ocean
variables are then fit to power law functions of the form of γ
DαEβ, where D is the event duration, E is its
total carbon emission, and γ is a coefficient. Good power law
fits are obtained for most system variables for E up to
50 000 PgC and D up to 100 kyr. Although all of
the peak perturbations increase with emission rate E/D, we find no
evidence of emission-rate-only scaling, α + β = 0. Instead, our scaling
yields α + β ≃ 1 for total ocean and atmosphere carbon and
0 < α + β < 1 for most of the other system variables. |
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