Title: Evaluation of the ozone sensitivity to the variation of spectral solar flux
Author: Eugene Rozanov
Affil: PMOD/WRC, Davos, Switzerland
Email: w.schmutz@pmodwrc.ch
Authors: Claus Froehlich, and Werner Schmutz
Affils: PMOD/WRC, Davos, Switzerland
Abstract: At what wavelength should the solar irradiance be monitored if we intend to estimate the influence of the sun on ozone production? We answer this question by locating the wavelength interval where the ozone production and/or ozone mixing ratio has the highest sensitivity to solar flux variations.
We have applied a simple 1-D steady-state chemical model to estimate the sensitivity of the ozone net production rate and ozone mixing ratio to an increase of the extraterrestrial spectral solar flux. We have carried out the control run with the reference values of the spectral extraterrestrial solar flux and 28 experiments where the values of solar flux were increased by 10% separately for 28 spectral intervals.
The results indicates that the atmospheric ozone is most sensitive to the solar flux variations in the spectral interval 210 to 220 nm, where the ozone production and mixing ratio are both positively correlated with spectral solar flux intensity, and to the spectral range 260 to 300 nm where the correlation is negative.