“…KR 634 and KR 1527, a radio physical observatory for ozone layer research in Central Asia was developed on the shore of lake Issyk Kul near the village of Karaoj (43° N, 77° E). The first results, received by an RMS 001 ground based microwave spectroradiometer, were published in [13,14]. In the given work, results from research into diurnal varia tions of the ozone content in the upper stratosphere and lower mesosphere over Central Asia are presented.…”