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<strong>On low value of surface ozone during winter in Delhi</strong>

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Authentication Code dc
 
Title Statement <strong>On low value of surface ozone during winter in Delhi</strong>
 
Added Entry - Uncontrolled Name Chakrabarty, D K ; Centre for Environment Survey
Peshin, S K; India Meteorology Department
India Meteorology Department, New Delhi
 
Uncontrolled Index Term Atmospheric science; surface ozone; chemistry of troposphere
Surface ozone; Nitrogen dioxide; Nitric oxide; Fog
 
Summary, etc. <p>In this paper, our main aim has been to explain the low value of surface ozone during winter in Delhi (28<sup>o</sup>N, 77<sup>o</sup>E). First surface ozone data of Delhi from 1990-2012 has been examined. Analysis of data shows that the concentration of surface ozone is the lowest during winter (13.3ppbv in December-January) and the highest in summer (25.35ppbv in May-June). Also, during this period of study, surface ozone has an increasing trend ~ 0.3ppbv/year. Next an attempt has been made to explain the low value of surface ozone observed during winter. The concentration of NO and NO<sub>2</sub> determines the seasonal distribution of O<sub>3</sub>. Low value of O<sub>3</sub> is explained when [NO<sub>2</sub>]/[NO] ratio is ~1 and high value of surface ozone is explained when this ratio is ~2. The low value of [NO<sub>2</sub>]/[NO] ratio and surface ozone during winter is due to the presence of fog.</p>
 
Publication, Distribution, Etc. Indian Journal of Radio & Space Physics (IJRSP)
2016-12-29 15:13:33
 
Electronic Location and Access application/pdf
http://op.niscair.res.in/index.php/IJRSP/article/view/11281
 
Data Source Entry Indian Journal of Radio & Space Physics (IJRSP); ##issue.vol## 45, ##issue.no## 1 (2016): Indian Journal of Radio & Space Physics
 
Language Note en
 
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