K. Mahajan, V. Pandey
Journal of Geophysical Research
Electron temperature models for the topside ionosphere, which make use of the protonospheric heat flux phi/sub C/, deduced from the experimental electron temperature profiles, are presented for low (F-bar/sub 10.7/=75 units) as well as medium (F-bar/sub 10.7/=150 units) solar activity conditions. The parameter phi/sub c/ is found to show inverse correlation with electron concentration N/sub e/ in the topside ionopshere. This relationship between N/sub e/ and phi/sub c/ at 400 km is used to obtain phi/sub c/ when N/sub e/ is known. The value of phi/sub c/ can be used to build the electron temperature profile in the topside ionosphere if T/sub e/ at some lower height is known. The T/sub e/ value at a lower height, say at 300 km, can be obtained from earlier models based upon empirical T/sub e/-N/sub e/ relationships. The electron temperature obtained from our present models are compared with the measured temperatures and are found to show reasonable agreement.