Abstract:

In this paper,the Ohm effect of high power radio wave on the lower polar ionosphere was studied.Based on the heat balance function and continuity function,the modification of ionospheric electron temperature and density by high power radio wave was simulated by using IRI2000 and MSIS as a background.The results show that the external pump can modify the temperature of ionospheric plasma and lead to the rising of the temperature of electron,the increase in the collision frequency and the decrease in the loss rate of electron,and furthermore,induce the modification of electron density.The intensity of modification of temperature and density of electron decreases with the increase of the heating time,that is,it tends to be saturated.In addition,it can be concluded that the characteristic time of electron density is larger than that of electron temperature.Also,the higher the frequency of pump,the weaker the Ohm effect of pump.