Solar Mesosphere Explorer (SME) ozone data were analyzed for short‐term periodic oscillations in the altitude region from 50 to 90 km. A 5‐day oscillation was found to be a dominant feature at high southern latitudes near the December solstice in the altitude range from 50 to 80 km. The wave feature appears to travel westward with a speed consistent with that of a wave number one planetary‐scale oscillation circling the globe in 5 days. The amplitude also appears to be consistent with the temperature oscillations predicted by Geisler and Dickinson (1976). This oscillation was not found to be a dominant feature in SME ozone during northern hemisphere summer.
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Rosenlof et al. (1990) studied this question.
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