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| Titel |
Effects of storms on primary productivity and air-sea CO2 exchange in the subarctic western North Pacific: a modeling study |
| VerfasserIn |
M. Fujii, Y. Yamanaka |
| 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 ; 5, no. 4 ; Nr. 5, no. 4 (2008-08-27), S.1189-1197 |
| Datensatznummer |
250002688
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| Publikation (Nr.) |
 copernicus.org/bg-5-1189-2008.pdf |
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| Zusammenfassung |
| Biogeochemical responses of the open ocean to storms and their feedback to
climate are still poorly understood. Using a marine ecosystem model, we
examined biogeochemical responses to the storms in the subarctic western
North Pacific. The storms in summer through early autumn enhance net
community production by wind-induced nutrient injections into the surface
waters while the storms in the other seasons reduce net community production
by intensifying light limitation on the phytoplankton growth due to vertical
dilution of the phytoplankton. The two compensating effects diminish the
storm-induced annual change of net community production to only 1%. On
the contrary, the storms reduce the annual oceanic uptake of the atmospheric
CO2 by 3%, resulting from storm-induced strong winds. Our results
suggest that previous studies using climatological wind, sea level pressure,
and CO2 data probably overestimated the air-to-sea CO2 influx
during storms in the subarctic western North Pacific, and therefore,
continuous high-frequent observations of these variables are required to
reduce uncertainties in the global oceanic CO2 uptake. |
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