Fig. 30From: On the use of ELF/VLF emissions triggered by HAARP to simulate PLHR and to study associated MLR eventsLHR frequency profiles above HAARP (left panel) and its magnetically conjugate point (right panel) during day time (full lines) and nighttime (dotted lines). The red lines represent the LHR frequency profiles when the electron density given by the IRI2016 model is divided by 10 (see text)Back to article page