Mesospheric Ozone Density Profile in the Polar Region.

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  • Mesospheric Ozone Density Profiles in the Polar Region
  • Mesospheric Ozone Density Profiles in t

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Abstract

Altitude distributions of mesospheric ozone were measured by rocket-borne radiometers in the polar region. The rocket observations were carried out in February and November, 1994 at Andoya (69°N, 16°E), Norway in the twilight condition. Mesospheric ozone densities in 60-100 km altitude region were measured by using the O2 1270 nm emission as well as the measurements of nitric oxide and stratospheric ozone densities. A clear secondary maximum of ozone density around 88 km and a deep valley around 78 km were seen in both months. The densities of the secondary maximum in February and November were 3.9 × 107 cm-3 and 7.1 × 107 cm-3, respectively.

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