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(a–c) The differences between symmetrical idealized disturbances of increasing duration (3-day, 7-day, and 11-day) with an amplitude of 100 units (blue lines) centered on t 0, and the results of subtracting a 21-day smooth (box-car running mean) from the data which acts as a high-pass filter (black lines). The resulting filtered data (referred to as anomalies) are shown as red lines, and display overshoot effects. (d) The effect of subtracting the smooth filter from the CR flux (units in normalized counts). The anomaly has been offset by −5.32 counts in (d) for plotting purposes.
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