Simulated CO₂-induced ocean acidification for ocean in the East China: historical conditions since preindustrial time and future scenarios.

ABSTRACT: Since preindustrial times, as atmospheric CO₂ concentration increases, the ocean continuously absorbs anthropogenic CO₂, reducing seawater pH and [Formula: see text], which is termed ocean acidification. We perform Earth system model simulations to assess CO₂-induced acidification for ocean in the East China, one of the most vulnerable areas to ocean acidification. By year 2017, ocean surface pH in the East China drops from the preindustrial level of 8.20 to 8.06, corresponding to a 35% rise in [H⁺], and reduction rate of pH becomes faster in the last two decades. Changes in surface seawater acidity largely result from CO₂-induced changes in surface dissolved inorganic carbon (DIC), alkalinity (ALK), salinity and temperature, among whi

SUBMITTER: Zhang H 

PROVIDER: S-EPMC6897940 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature