Simultaneous measurements of HNO3, NO2, HCl, O3, N2O, CH4, H2O and CO and their latitudinal variations as deduced from air-borne infrared spectrometry

Details Simultaneous measurements of HNO3, NO2, HCl, O3, N2O, CH4, H2O and CO and their latitudinal variations as deduced from air-borne infrared spectrometry Simultaneous measurements of HNO3, NO2, HCl, O3, N2O, CH4, H2O and CO and their latitudinal variations as deduced from air-borne infrared spectrometry

Aug 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988angeo...6..425k&link_type=abstract

Annales Geophysicae (ISSN 0980-8752), vol. 6, Aug. 1988, p. 425-443. Research sponsored by Meteorologie Nationale, Ministere de

Physics

9

Atmospheric Chemistry, Hydrochloric Acid, Infrared Spectroscopy, Nitric Acid, Nitrogen Oxides, Spatial Distribution, Atmospheric Models, Carbon Monoxide, Methane, Ozone, Ozone Depletion, Spectrum Analysis, Two Dimensional Models, Vertical Distribution, Water

Scientific paper

Integrated column abundances above 11.6 km altitude were obtained in June 1983 and 1984 for HNO3, NO2, HCl, O3, N2O, CH4, H2O, and CO using Stratoz 3 data. Good agreement with two-dimensional model calculations is found. A large variation of the HNO3 column density versus latitude is found, along with an asymmetry in its volume mixing ratio profile between 12 and 16 km. The column density increase of NO2 versus latitude occurs at a faster rate in the summer hemisphere than in the winter hemisphere. An asymmetry of the HCl column amount with respect to the minimum in the equatorial regions is noted. Results indicate that the anomalous chemistry found during the formation of the ozone hole may have existed prior to springtime.

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