Extended Data Fig. 5: Box model simulations and validation of calculation approach to estimate dissolved oxygen changes as a result of warming.
From: Increasing hypoxia on global coral reefs under ocean warming
(a) Modeled variations in seawater dissolved oxygen (DO; µmol O2 kg−1) in a hypothetical coral reef system over 7 days under three temperature scenarios (25 °C, 28 °C, and 31 °C; purple, green, blue, respectively) and two residence times (1 hour and 5 hours; solid and dotted lines, respectively). The model is described in detail in the Supplementary Information Extended Methods. (b) Comparison between the box model-calculated changes in DO due to warming and the calculation approach employed for the global coral reef dataset (Extended Data Fig. 4; Equations 6–13) represented as the deviation of model DO estimates from calculation DO estimates (µmol O2 kg−1). Comparisons were made for two warming scenarios relative to the base scenario of 25 °C (+3 °C and +6 °C; blue and green, respectively) and two residence times (1 hour and 5 hours; solid and dotted, respectively) over 7 days.
