Energetic particle precipitation associated with pulsating aurora (PsA) can reach down to lower mesospheric altitudes and deplete ozone. It is well documented that pulsating aurora is a common phenomenon during substorm recovery phases. This indicates that using magnetic indices to model the chemistry induced by PsA electrons could underestimate the energy deposition in the atmosphere. https://www.roneverhart.com/100-Percent-Sunglasses-SPEEDCRAFT-LE-Money-Mike-HiPER-Silver-Mirror/