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Decadal solar signal in ozone and temperature through the mesosphere of Northern tropics

Fadnavis, S and Beig, G and Chakraborti, T (2012) Decadal solar signal in ozone and temperature through the mesosphere of Northern tropics. Journal of Atmospheric and Solar-Terrestrial Physics, 78-79. pp. 2-7.

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Abstract

To investigate the effects of decadal solar variability on ozone and temperature in the mesosphere of the Northern tropics, data obtained from the Halogen Occultation Experiment (HALOE) aboard Upper Atmospheric Research Satellite (UARS) during the period 1992-2005 are analyzed using a multifunctional regression model. The inferred annual-mean solar signal in ozone is found to be insignificant in the lower mesosphere whereas it is of the order of 5/100. sfu in the upper mesosphere. Seasonal variation of ozone response to solar variability indicates a strong positive response (22-30/100. sfu) during summer and autumn between 5E-3 and 0.01. mb pressure levels (~80-85. km). The annual mean temperature response is found to be of the order of 0.5-1. K/100. sfu. Significant positive temperature response is observed during winter and autumn in the lower mesosphere and during summer and spring in the upper mesosphere. Results obtained in the present study are also compared with the results obtained by other workers.

Item Type: Article
Additional Information: Copyright of this article belongs to Elsevier.
Uncontrolled Keywords: Annual mean temperatures; Atmospheric research; Halogen occultation experiments; Mesospheric ozone; Ozone response; Pressure level; Regression model; Seasonal variability; Seasonal variation; Solar signals; Solar variability; Spring-in; Temperature response, Climatology; Ozone; Regression analysis, Tropics
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 21 Dec 2013 08:55
Last Modified: 21 Dec 2013 08:55
URI: http://moeseprints.incois.gov.in/id/eprint/509

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