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The latest 31 days.
▉red: predicted tide; ▉blue: barometer (P); ▉aquamarine: inverse water level (IWL) at Ringhals in hPa +1013, ▉yellow:  bottom pressure at Ringhals; (the four at 1 smp/h).
▉orange: Well water level (borehole below gravity lab), in dm (at 1 smp/min)
▉black: tide+baro residual (at 1 smp/min).
P and IWL would follow each other if the response were static.