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Detection of the response of ozone in the middle atmosphere to short‐term solar ultraviolet variations
Author(s) -
Keating G. M.,
Brasseur G. P.,
Nicholson J. Y.,
De Rudder A.
Publication year - 1985
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl012i007p00449
Subject(s) - ozone , atmospheric sciences , atmosphere (unit) , environmental science , solar cycle , term (time) , solar irradiance , ultraviolet , meteorology , physics , astronomy , optics , solar wind , quantum mechanics , magnetic field
The response of ozone to solar UV variation is determined in the middle atmosphere between the heights of 10 and 0.2 mb. The definitive isolation of the smaller variations associated with short‐term solar variability is accomplished only after removal of the larger changes of ozone related to temperature variations. Using this approach the correlation coefficients between detrended ozone (Nimbus 7 LIMS) and short‐term 205 nm solar variation (Nimbus 7 SBUV) are found to be much higher (0.9) than achieved in previous studies. The theoretical response time and amplitude of response of ozone in the middle atmosphere to observed short‐term solar UV variations is found to be in good agreement with observations, except near 0.2 mb. The corresponding long‐term response over the solar cycle is also estimated.