Seasonal variations in stratospheric NO2 at 45 deg S

Details Seasonal variations in stratospheric NO2 at 45 deg S Seasonal variations in stratospheric NO2 at 45 deg S

Nov 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982georl...9.1255m&link_type=abstract

Geophysical Research Letters, vol. 9, Nov. 1982, p. 1255-1258.

Physics

36

Annual Variations, Atmospheric Composition, Nitrogen Dioxide, Stratosphere, Absorption Spectroscopy, Abundance, Midlatitude Atmosphere, Southern Hemisphere, Vertical Distribution

Scientific paper

Measurements taken at an altitude of 370 m in New Zealand are used to characterize the long term variability of midlatitude stratospheric NO2. Spectra were obtained at sunrise and sunset by a scanning monochromator during the period December 1980-May 1982. The long-path absorption spectroscopy revealed column abundances similar to those in the Northern Hemisphere. Evening abundances displayed a seasonal variation from 3.2 x 10 to the 15th mol/sq cm to 6.4 x 10 to the 15th mol/sq cm. Morning abundances ranged from 2 x 10 to the 15th mol/sq cm to 4.5 x 10 to the 15th mol/sq cm. The altitude scan of the measurements was 20-30 km. Further experiments from a base in Antarctica will be performed during the summer of 1982-83.

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