Marie-France Weirig

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Today's surface ocean is saturated with respect to calcium carbonate, but increasing atmospheric carbon dioxide concentrations are reducing ocean pH and carbonate ion concentrations, and thus the level of calcium carbonate saturation. Experimental evidence suggests that if these trends continue, key marine organisms--such as corals and some plankton--will(More)
A biotechnological aerobic process is modelled as an ordinary diierential equation which, under mild assumptions, ensures invariance of the positive orthant and bound-edness of the concentrations. An adaptive controller is designed for this general class of processes so that the external substrate can be regulated by the dilution rate into a prespeciied(More)
Anthropogenic Decline in High-Latitude Ocean Carbonate by 2100 James C. Orr, Victoria J. Fabry, Olivier Aumont, Laurent Bopp, Scott C. Doney, Richard M. Feely, Anand Gnanadesikan, Nicolas Gruber, Akio Ishida, Fortunat Joos, Robert M. Key, Keith Lindsay, Ernst Maier-Reimer, Richard Matear, Patrick Monfray , Anne Mouchet, Raymond G. Najjar, Gian-Kasper(More)
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