Abstract:Previous studies of range and angular errors caused by variation of atmospheric refractivity with altitude generally have used functional expressions, averaged data, or data from a small number of radiosonde ascents. In this investigation a large data base was employed consisting of radiosonde measurements made at intervals of about 2 hr for a period of 1 week. In the analysis it was assumed that the refractivity varied only as a function of altitude and that there was no ducting. Curves showing the deteriorat… Show more
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