Accession Number : AD0608759

Title :   EFFECT OF TEMPERATURE CHANGES ON THE ELECTRON DENSITY DISTRIBUTION IN THE F-REGION.

Descriptive Note : Scientific rept.,

Corporate Author : PENNSYLVANIA STATE UNIV UNIVERSITY PARK IONOSPHERE RESEARCH LAB

Personal Author(s) : Somayajulu,Y. V.

Report Date : 01 DEC 1964

Pagination or Media Count : 27

Abstract : The initial profile is assumed to correspond to photo-equilibrium conditions, with the peak electron density determined by production, loss and diffusion. The temperature dependence of the production, loss and diffusion parameters are then introduced and the modified profiles are obtained for different temperature changes. The results show that following a temperature increase (by a factor lambda > 1) the electron density at all levels decreases. The height of the peak is located using the theoretical expression. The changed peak electron density obtained from the profile agrees well with that computed from the theoretical expression. Thus, it is concluded that the changed electron density distribution up to the peak can be obtained using this procedure. It is, however, pointed at that while a large reduction takes place in the electron density at fixed levels, the N (max) decreases only as approximately 1/lambda (5/6th or 1/2 powers). For small changes in temperature (lambda=1.1) there is a possibility of a slight increase in N (max). Similarity between these results and the behavior of F-region in the equatorial regions is indicated. (Author)

Descriptors :   (*IONOSPHERE, ELECTRON DENSITY), DIURNAL VARIATIONS, IONOSPHERIC DISTURBANCES, TROPICAL REGIONS, TEMPERATURE, DEFORMATION

Distribution Statement : APPROVED FOR PUBLIC RELEASE