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Solar cycle variability in middle atmospheric ozone over tropics

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Abstract:

To investigate the effects of decadal solar variability in ozone, data obtained from the Halogen Occultation Experiment (HALOE) onboard Upper Atmospheric Research Satellite (UARS) during the period 1992-2004 have been analysed using a multifunctional regression model. Solar effects on ozone are analysed over the 0-30˚ N and 0-30˚ S belts. The solar effect on ozone is found to be significant in most of the stratosphere (2 ± 1.1 to 4 ± 1.6%/100 sfu). It is negligible in the lower mesosphere whereas it is of the order of 5%/100 sfu in the upper mesosphere. These observed results are in reasonable agreement with model simulations. Results indicate a hemispheric symmetry in the tropics. Results obtained in the present study are also compared with the results obtained by other workers.

Document Type: Research Article

DOI: https://doi.org/10.1080/01431160902893535

Affiliations: Indian Institute of Tropical Meteorology, Pashan, Pune, India

Publication date: 2010-04-01

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