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A Fine Balance

WHOI postdoctoral researcher Katie Shamberger makes adjustments to VINDTA (Versatile INstrument for the Determination of Total inorganic carbon and titration Alkalinity) in the lab of associate scientist Dan McCorckle. By making fine measurements of those two paramenters (inorganic carbon and alkalinity), the instrument allows Shamberger to precisely calculate seawater pH and CO₂ levels in seawater. The Southern California native studies coral reef ecosystems and how the ocean ecosystem as a whole responds to changing carbon dioxide levels as a member of Associate Scientist Anne Cohen’s lab.(Photo by Tom Kleindinst, Woods Hole Oceanographic Institution)