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Ozone concentration at meteor heights determined from forward-scatter radar echoes |
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| Institution: | 1. FISBAT Institute, CNR, Via Gobetti 101, 40129, Bologna, Italy;2. Astronomical Institute of the Slovak Academy of Sciences, Dúbravská cesta 9, 842 28, Bratislava, Slovak Republic;3. Astronomy and Astrophysics Department, Comenius University, Mlynská dolina, 842 15, Bratislava, Slovak Republic;1. Space Research Institute, Moscow, Russia;2. Saint-Petersburg State University, Russia;3. Sodankylä Geophysical Observatory, Sodankylä, Finland;4. Department of Physics and Astronomy, University of Leicester, Leicester, UK |
| Abstract: | The ozone concentration has been measured in the meteor zone using a method of radar echo duration distribution suggested by Jones and ?imek (1995). Data obtained by the forward-scatter system during the Lyrid meteor shower period in five consecutive years 1992–1996 agree with the Solar Mesosphere Explorer results for the same heights of 95 km. The mean value of the ozone concentration O3]=(1.56±0.05)×1014 m?3 has been derived from a total of 6596 radar meteor echoes with duration ≥1 s. The results for individual years indicating a possible decrease in O3] are discussed. |
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