Figure 8.
The four-panel graph depicts time series data plotted against elapsed time in days on the x-axis for two measurement locations labelled A 17 S and B 22 T 3, with B 33 T 3 used in the temperature panel. Panel a illustrates flow rate in millilitres per minute, showing A 17 S fluctuating around 26 to 28 millilitres per minute with brief, sharp drops near 450 and 500 days, while B 22 T 3 remains slightly lower and more stable near 25 to 26 millilitres per minute. Panel b illustrates pressure change in the vessel in megapascals, where both series decrease rapidly from 0 to negative values, with A 17 S stabilising near negative 0.03 megapascals and B 22 T 3 reaching more negative values near negative 0.045 megapascals, including short upward spikes near 300 and 500 days. Panel c illustrates cumulative water inflow in millilitres, showing a gradual increase for both locations, with B 22 T 3 rising steadily to about 35 millilitres by 650 days and A 17 S increasing more slowly to about 12 millilitres, with intermittent sharp spikes and drops between 250 and 400 days. Panel d illustrates temperature in degrees Celsius, showing both series varying between about 21.0 and 23.0 degrees Celsius, with brief spikes near 300 and 500 days and overall small fluctuations over the monitoring period.Measurements for A17-S and B22-T3 since the start of the experiment (September 2023) until May 2025