A METHOD FOR DETERMINING THE ELECTRON DENSITY PROFILE IN THE D-REGION OF THE IONOSPHERE.
EMMANUEL COLL BOSTON MASS RESEARCH LANGUAGE CENTER
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On the basis of results measuring non-deviative absorption L sub D in the D-region with moderately high frequencies, the distribution law for electron density can be determined as a function of altitude. In order to do this, we solve an integral equation for absorption using an analytical method of successive expansion by a Taylors series. Thus, by using the recorded L sub D during oblique incidence of an electromagnetic wave on a series of points, or by measuring absorption at several frequencies in the Al region, the form of Nz in the D-region can be determined by simple methods, and its periodic variation can be controlled. Author