A Schumann spectrogram is a time-frequency map. The horizontal axis shows time, the vertical axis shows frequency bands, and color intensity reflects relative energy. The region around 7.83 Hz is typically used as the baseline reference for interpreting resonance stability.

Accurate interpretation starts with signal quality control. Data gaps, station-side interference, and off-band bursts can look dramatic but may not represent true resonance changes. For this reason, spectrogram views should be cross-checked with frequency and amplitude charts.

UniqAtlas is designed to make raw Schumann data easier to interpret. Comparing intraday patterns with the previous 24-hour profile helps separate short-lived anomalies from sustained structural shifts.