Physics
Scientific paper
Jan 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987jgr....92..889k&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 92, Jan. 20, 1987, p. 889-914. Research supported by the Chemical Manufac
Physics
62
Middle Atmosphere, Solar Activity Effects, Solar Radiation, Solar Terrestrial Interactions, Ultraviolet Radiation, Atmospheric Temperature, Mesosphere, Nimbus 7 Satellite, Ozone, Satellite Observation, Solar Mesosphere Explorer, Stratosphere
Scientific paper
The effects of solar UV variability on ozone and temperature are studied using Nimbus 7 stratospheric and mesospheric ozone, temperature, and 205-nm solar UV data, and Solar Mesosphere Explorer 1.27-micron ozone and 121.6-nm solar UV data. Consideration is given to the temperature/UV relation, the O3/UV relation with and without temperature feedback, and the responses of HNO3 and NO2 to solar UV variability. It is observed that the response times of temperature to solar UV variability are 6 days at 2 mbar and 1 day at 0.01 mbar. The stratospheric ozone response (with no correction for temperature effects) increases, while in the mesosphere a decrease is detected. The responses of ozone and temperature to solar variability are examined and calculated using a one-dimensional chemical-radiative time-dependent model. The comparison of the model results with the satellite-observed responses reveals generally good correlation between the data; however, the model predicts a larger time lag of the temperature response and a larger stratospheric HNO3 mixing ratio than the satellite data. It is noted that the relation between short-term variations in the solar UV radiation and stratospheric ozone is affected by the coupling between ozone and temperature.
Brasseur Guy
de Rudder Anne
Keating Gerald M.
Pitts Michael C.
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