Dst Index — Monthly Heatmap
Disturbance storm-time index (nT) · Day × Hour matrix · Color encodes geomagnetic activity level
Storm scale:Quiet (≥ 0 nT)Minor (−30 to 0)Moderate (−50 to −30)Intense (−100 to −50)Severe (< −100)
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Space Weather over AfricaBusitema University · Ionospheric Monitoring