Carioca buoy: Carbon dioxide monitor - multiple-sensor autonomous system monitors carbon dioxide concentration at the ocean sea-air interface
- Universite Paris (France)
- SERPE/IESM, Guidel (France)
Concentrations of carbon dioxide in the atmosphere are increasing largely because of fossil-fuel combustion, but the rate of increase is only about half of the total emission rate. The balance of the carbon must be taken up in the oceans and the terrestrial biosphere, but the relative importance of each of these sinks - as well as their geographic distribution and the uptake mechanisms involved - are still a matter of debate. The rate at which the ocean absorbs carbon dioxide is poorly known. Until now, sensors measuring the concentration of carbon dioxide have been working with the gas phase exclusively by chromatography or infrared analysis. The set of data available today starts to be relatively large and shows that distribution displays a very large time and space variability. Thus, continuous time series measurements made in selected key areas over a long period are necessary. For this purpose an automatic measuring carbon dioxide drifting buoy was developed. The industrial aim of the CARIOCA (carbon interface ocean atmosphere) project is to implement a high accuracy sensor on a drifting buoy in the open sea. This article discusses the technology and specifications of the CARIOCA project.
- OSTI ID:
- 121426
- Journal Information:
- Sea Technology, Vol. 36, Issue 10; Other Information: PBD: Oct 1995
- Country of Publication:
- United States
- Language:
- English
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