Seasonal variation of ozone in the mesosphere

Details Seasonal variation of ozone in the mesosphere Seasonal variation of ozone in the mesosphere

Mar 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981jgr....86.1463k&link_type=abstract

Journal of Geophysical Research, vol. 86, Mar. 1, 1981, p. 1463-1466. Financiadora de Estudos e Projetos

Physics

15

Annual Variations, Mesosphere, Ozonometry, Atmospheric Chemistry, Atmospheric Models, Nightglow, Nocturnal Variations, Sodium

Scientific paper

The mesospheric ozone density at a height of 88 km has been deduced from simultaneous ground-based observations of neutral sodium density and sodium nightglow intensity, using a photochemical equilibrium model. The data have been obtained at Sao Jose dos Campos (23 deg S, 46 deg W). Sodium densities are measured as a function of height between 76 and 106 km by laser radar, and the nightglow intensities by a tilting filter photometer. The ozone density shows a strong seasonal variation with well defined maxima at the equinoxes, and a mean annual value of 8 x 10 to the 7th per cu cm. The average nocturnal variation shows a factor of 2 increase between sunset and sunrise.

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