Fig. 2: Modelled benthic biogeochemistry in surface sediments of Boknis Eck.
From: Seafloor alkalinity enhancement as a carbon dioxide removal strategy in the Baltic Sea
a O2 concentration, b total rate of oxygen consumption, c calcite saturation state, d pH, e calcite content, f calcite dissolution rate, g respiratory index (carbonate dissolution ÷ POC degradation), h sensitivity factor of pH to changes in TA. The white line in (c) denotes ΩCalcite = 1. The x-axis shows time in years relative to artificial calcite addition beginning at year zero (24 mmol m−2 d−1). Calendar years begin on 1 January. Note the different depth scales for CaCO3 and calcite dissolution. High temporal resolution plots are shown in the Supplementary Material.
