Table 6 Causal Links: IRA. We show the value of the maximal causal effect, \(I_{i \to j}^{{\mathrm{CE}, \max}} = \max_{0 < \tau \le \tau _{\max}} \vert {I_{i \to j}^{{\mathrm{CE}}}(\tau )} \vert \) between each pair \((i, j)\) of activity time series, where \(\tau _{\max}= 18 \times 15\) min = 4.5 h is the maximal time lag considered, with standard errors. The arrows indicate the direction of the causal effect. For each activity time series, we indicate in bold the most important drivers of activity (excluding themselves). In blue, we highlight the auto-correlation of each node
