
TY  - JOUR
A1  - Dyson, PL 
T1  - Electron Densities and Scale Heights in the Mid-latitude Topside Ionosphere
JF  - Australian Journal of Physics
JO  - Aust. J.  Phys.
Y1  - 1967
VL  - 20
IS  - 4
SP  - 401
EP  - 406
KW  - 
UR  - https://doi.org/10.1071/PH670401 
N2  - The diurnal and latitudinal variations of electron density and plasma scale height in the topside ionosphere during summer and winter have been calculated from Alouette I ionograms recorded at Woomera. The electron density behaviour is anomalous in that the winter night-time values are generally as large or larger than those occurring during the day. At heights near 1000 km the winter night-time values are greater than those for night-time summer. The behaviour of the scale height is very similar to that reported by others for the mid-latitude region of the northern hemisphere and implies that at night-time the transition level from 0+ to lighter ions occurs at heights of about 550 km in summer and 500 km in winter. 
ER  -

