Temperature enhancement induced by ionosphere heating in low altitude region

Observations of the Heating Experiments in the Polar Winter Ionosphere

“…Under this premise, it is impossible to observe the electron temperature enhancement accurately. As a result, the analysis procedure needs to be revised, and the electron temperature should be used as an independent inversion variable [13] .…”

“…As the previous observation presented, the enhancement of the electron temperature near the reflection height was most obvious [6] , the percent was close to 50% during daytime [8,9] , and the number was up to 300% at night [11] . In the low ionosphere region, in despite of the frequent collision and under-dense heating, the remarkable heating effect was still achieved [12] and the temperature enhancement was up to 46% [13] . According to the theoretical prediction [30∼32] , the disturbance of the density is far slenderer than the temperature.…”

“…In a low ionosphere region, due to a larger measured error and a lower spectra resolution, it is difficult to determine the ionospheric parameters accurately. However, the evident phenomenon was still observed [12,13] . There is a close correlation between the AFAI (Artificial Field-Aligned Irregularities) and the HF (High Frequency) heating.…”