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Biochemical carbon cycling in coastal zones

Ziel

The aim of this project is to collect data about the carbon cycle in coastal zones in order to determine the role of coastal zones in the oceanic carbon cycle.
Field data about the carbon cycle were collected from 2 European coastal areas. Fluxes of carbon (atmosphere and sediment) in the Bay of Clavi (FR), and parameter distribution through the salinity gradient of the Tamar Estuary (UK) are given.

The effective role of the oceans in the global carbon cycle is a subject of discussion concerning their role in the buffering of the atmospheric human induced carbon dioxide excess. Although coastal zones, including shelves, represent about 10% of the oceanic area, they could account for more than 25% of the total production. The experimental protocol consists of monitoring carbon (organic and inorganic), as well as associated parameters (nutrients, oxygen, chlorophyll and metals), in the water column together with exchanges of carbon with the atmosphere, with the sediment and by hydrodynamic processes.
The experimental protocol will consist of monitoring organic and inorganic carbon in the water column together with the exchanges of carbon with the atmosphere, with the sediment, with benthic andor pelagic ecosystems as well as by hydrodynamic processes. The project will be carried out in 3 quite different European coastal zones: the Bay of Calvi (Mediterranean Sea), the Tamar Estuary (Channel) and the Aveiro Lagoon (Atlantic Ocean). The project also includes the intercalibration of 2 methods used to measure air-sea gas exchanges (the tracer one applied to SF6 and the direct method applied to CO2) and the intercalibration of 3 parameters used to calculate the inorganic carbon speciation (alkalinity, pH and PCO2) in a wide range of conditions.

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Koordinator

Université de Liège
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Adresse
Sart Tilman
4000 Liège
Belgien

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