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Variability in Sun photometer-derived total ozone over a tropical urban station

Raj, PE and Devara, PCS and Pandithurai, G and Maheskumar, RS and Dani, KK and Saha, SK and Sonbawne, SM (2004) Variability in Sun photometer-derived total ozone over a tropical urban station. Journal of Geophysical Research D: Atmospheres, 109 (8). D08309 1-8.

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Abstract

A portable, handheld, multichannel Sun photometer (ozonometer) has been used to measure total column ozone over Pune (18320N, 73510E, 559 m above mean sea level), India, a tropical urban station. Data collected on about 575 mostly clear-sky days during the 5 year period from May 1998 to May 2003 have been used in this study to examine diurnal and seasonal variations. The overall daily mean total ozone at this station is 254 Dobson units (DU), with a variability of about 7%, while the most frequently occurring value is in the range 241–250 DU. The diurnal (daytime) patterns are observed to be different in the winter (December–February), premonsoon (March–May), and postmonsoon (October–November) seasons.

Item Type: Article
Additional Information: Copyright of this article belongs to American Geophysical Union
Uncontrolled Keywords: atmospheric chemistry; clear sky; ozone; photometer; urban atmosphere, Asia; Eurasia; India; Maharashtra; Pune; South Asia
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 18 Apr 2015 09:48
Last Modified: 18 Apr 2015 09:48
URI: http://moeseprints.incois.gov.in/id/eprint/1460

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