A model of the Venus ionosphere

摘要: Results of model calculations the Venus ionosphere covering altitude range from 120 km to 300 are presented. The chemical scheme and reaction rates adopted for same as given in a recent paper by Kumar Hunten [1974], except that electron temperature dependence dissociative recombination is taken into account. were carried out ‘low’ ‘high’ atomic oxygen models, corresponding an [O]/[CO2] ratio 0.4 percent 4 respectively at 140 km. results agree well both shape magnitude with Mariner 5 10 occultation chemically controlled region; higher altitudes reasonable agreement observation obtained if diffusive equilibrium high vertical flow velocities (10 km/sec) assumed upper boundaries conditions, respectively, although solar wind-ionosphere interactions likely controlling mechanism case.