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Surface ozone; cloud coverage; NO₂; OMI.

Critical analysis of experimental surface ozone data and cloud coverage is reported over Kolkata during the period January 2011 to December 2011. Significant relationship between these two parameters is observed. Analysis shows that the trend of surface ozone concentration and cloud coverage follow opposite tendency. Some exceptional observations are also reported. Apart from this, seasonal variation of surface ozone with columnar ozone concentration, NO2 and temperature is also examined in relation with cloud cover to obtain a possible explanation of this type of variation.

D Ghosh^{1 2} S K Midya³ U Sarkar² T Mukherjee³

1. Department of Chemistry, Jadavpur University, Jadavpur, Kolkata 700 032, India.
2. Department of Chemical Engineering, Jadavpur University, Jadavpur, Kolkata 700 032, India.
3. Department of Atmospheric Sciences, Calcutta University, 92, A.P.C. Road, Kolkata 700 009, India.

Published

March 2015

Manuscript received

24 May 2014

Manuscript revised

14 August 2014

Accepted

1 October 2014