Transport of thermospheric NO(x) to the stratosphere and mesosphere

Details Transport of thermospheric NO(x) to the stratosphere and mesosphere Transport of thermospheric NO(x) to the stratosphere and mesosphere

Oct 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992adspr..12...57g&link_type=abstract

(The earth's middle and upper atmosphere; Proceedings of the Topical Meeting of the Interdisciplinary Scientific Commission C /M

Computer Science

1

Mesosphere, Nitric Oxide, Photochemical Reactions, Pollution Transport, Stratosphere, Thermosphere, Atmospheric Chemistry, Nitrogen, Ozonometry, Solar Cycles, Solar Terrestrial Interactions

Scientific paper

Odd nitrogen (NO(x)) is produced in the earth's thermosphere when N2 is dissociated by solar radiation and energetic particle precipitation. Thermospheric production and downward transport in winter high latitudes gives rise to polar reservior containing very large quantities of NO(x). This reservior, which is maintained throughout the winter, can affect the photochemistry of the upper stratosphere and mesosphere. In particle, it can account for variations in the ozone concentration in the stratosphere associated with the 11-year solar cycle, and for the smooth and sporadic D-region winter anomalies. The results of numerical modeling studies bearing on these phenomena are compared with observations to ascertain the impact of the thermospheric NO(x) source on lower levels of the middle atmosphere.

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