Electron loss coefficients at 80 km from a simplified positive ion model


  • B. S. N. Prasad,

  • S. Mohanty


Experimental electron densities for a mid-latitude station and a simplified positive ion model consisting of O2+, NO+ and their respective cluster ions are used in analyzing the normal day ion production and loss processes at 80 km for solar zenith angles 45° to 75°. Effective recombination coefficient and positive ion relative composition are calculated and compared with the experimental results. For a satisfactory agreement, the NO density is taken as 1.6 X 106 cm−3, which is about an order of magnitude less than the generally accepted value from rocket studies. It is also shown here that q ∝ [e] is not valid at 80 km.