Figure 9: Temporal evolution of dissolved O2 and Cl concentrations at the different observation point locations for Scenario 1 with a 10-fold increase of O2-consumption rates. (a), (b), (c), (d), (e), and (f) for Dol3, Sand4, Dol2, Sand3, Sand2, and Sand1, respectively. O2 concentrations in mol l−1. If O2 profiles are not visible for a specific depth and unit, concentrations remain below 1 × 10−9 mol l−1 for duration of simulation.