How do Solar Particle Events (SPEs) generally compare to GCRs regarding energy and arrival pattern?

Answer

Typically less energetic but arrive in massive, unpredictable bursts.

While Solar Particle Events are generally less energetic than GCRs, they pose an acute danger because they can arrive suddenly in massive, unpredictable bursts.

How do Solar Particle Events (SPEs) generally compare to GCRs regarding energy and arrival pattern?
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