Time and height variations in the daytime processes in the ionosphere. Part I: A Noontime model of the ionosphere loss coefficient from 60 to 600 km over middle latitudes

Abstract

This work deals with the height variations of the various dissipative processes occurring in the ionosphere over a height range of 50 to 600 km, and is an extension of the earlier work by Mitra and Jones [1954]. An expression is given for the calculation of the loss coefficient over the entire ionosphere. For noon conditions, defined by the hours 1030 to 1330 LMST, and for stations in the northern middle latitude zone, the equation for the loss coefficients for heights in the range of 50 to 600 km is α = 5 × 10^-21 n ( O 2 ) + 3 × 10^-20 n ( O ) + 2 × 10^-19 n ( O 2 ) 2 × 10^-11 n ( O 2 ) + 1 × 10^-8 N e + 1 × 10^-12 cm³/s.