Fig. 6: Simulations of pCO2, pH, DIC, and Ωarag.
From: Controls on surface water carbonate chemistry along North American ocean margins

Simulations were run using a box model and values derived from the assumption of instantaneous CO2 equilibrium with the atmosphere. In the left column are a prescribed SST and SSS, b model-generated pCO2 and pH, and c model-generated DIC and Ωarag for Gulf of Maine waters. Heavy lines are box-model simulations and light lines are calculated values from instantaneous equilibrium with the atmosphere. For simplicity, we assume atmospheric pCO2 is seasonally invariant. In the right column, model observed d pCO2, e pH, f DIC, and g Ωarag are plotted against those predicted from equilibration with the atmosphere (eq), similar to those in Fig. 5. Symbols color coded by month represent the Gulf of Maine simulation (with colder temperature), and black symbols represent the South Atlantic Bight simulation (warmer temperature).