The response of the polar ionosphere–thermosphere (I-T) system to electromagnetic (EM) energy input is fundamentally different to that from particle precipitation. To understand the I-T response to polar energy input one must know the intensities and spatial distributions of both EM and precipitation energy deposition. Moreover. since individual events typically display behavior... https://www.diegojavierfares.com/limited-stock-Warren-Pear-Tree-big-deal/