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| Titel |
Coastal upwelling fluxes of O2, N2O, and CO2 assessed from continuous atmospheric observations at Trinidad, California |
| VerfasserIn |
T. J. Lueker |
| 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 ; 1, no. 1 ; Nr. 1, no. 1 (2004-11-16), S.101-111 |
| Datensatznummer |
250000074
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| Publikation (Nr.) |
 copernicus.org/bg-1-101-2004.pdf |
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| Zusammenfassung |
| Continuous atmospheric records of O2/N2, CO2 and N2O
obtained at Trinidad, California document the effects of air-sea exchange
during coastal upwelling and plankton bloom events. The atmospheric records
provide continuous observations of air-sea fluxes related to synoptic scale
upwelling events over several upwelling seasons. Combined with satellite,
buoy and local meteorology data, calculated anomalies in O2/N2 and
N2O were utilized in a simple atmospheric transport model to compute
air-sea fluxes during coastal upwelling. CO2 fluxes were linked to the
oceanic component of the O2 fluxes through local hydrographic data and
estimated as a function of upwelling intensity (surface ocean temperature
and wind speed). Regional air-sea fluxes of O2/N2, N2O, and
CO2 during coastal upwelling were estimated with the aid of satellite
wind and SST data. Upwelling CO2 fluxes were found to represent ~10%
of export production along the northwest coast of North America.
Synoptic scale upwelling events impact the net exchange of atmospheric
CO2 along the coastal margin, and will vary in response to the
frequency and duration of alongshore winds that are subject to climate
change. |
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