Chemical and dynamical response to the 11-year variability of the solar irradiance simulated with a chemistry-climate model

Details Chemical and dynamical response to the 11-year variability of the solar irradiance simulated with a chemistry-climate model Chemical and dynamical response to the 11-year variability of the solar irradiance simulated with a chemistry-climate model

Mar 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3106119e&link_type=abstract

Geophysical Research Letters, Volume 31, Issue 6, CiteID L06119

Physics

Geophysics

34

Atmospheric Composition And Structure: Middle Atmosphere-Composition And Chemistry, Global Change: Solar Variability, Mathematical Geophysics: Modeling, Meteorology And Atmospheric Dynamics: Middle Atmosphere Dynamics (0341, 0342)

Scientific paper

Atmospheric effects of the solar irradiance variations during 11-year solar cycle are investigated using a chemistry-climate model. The model is enhanced by a more detailed parameterization of the oxygen and ozone UV heating rates. The simulated ozone response to the imposed solar forcing shows a positive correlation in the tropical stratosphere and a negative correlation in the tropical mesosphere, in agreement with theoretical expectation. The model suggests an acceleration of the polar night jets in both hemispheres and a dipole structure in the temperature changes at high latitudes. The model results also show an alteration of the tropospheric circulation air resulting in a statistically significant warming of 1 K in the annual mean surface air temperature over North America and Siberia. This supports the idea of a solar-climate connection.

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