ABSTRACT

Model simulations based on ocean circulation of atmospheric CO2 emissions suggest that stabilization of atmospheric CO2 at 450 ppm produces both calcite and aragonite undersaturation in most of the deep ocean (Caldeira and Wickett 2005). Although the physical and chemical basis for ocean acidifi cation is well understood, there exist few fi eld data of suffi cient duration, resolution, and accuracy to document the acidifi cation rate and to elucidate the factors governing its variability (Dore et al. 2009).