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Behavior of boundary layer ozone and its precursors over a great alluvial plain of the world: Indo-Gangetic plains

Beig, G and Ali, K (2006) Behavior of boundary layer ozone and its precursors over a great alluvial plain of the world: Indo-Gangetic plains. Geophysical Research Letters, 33 (24).

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Abstract

We investigate the special behavior in the distribution of boundary layer ozone and its precursors over world's most extensive tract of uninterrupted alluvium and intensively farmed zones situated in the foothills of Himalayas as major river basin, known as Indo-Gangetic Plains (IGP). The study makes use of a Chemistry-Transport Model forced with dynamical fields and new emission inventories of pollutants established for 2001. It is found that the IGP region is highly vulnerable to human induced pollutant emissions due to conducive synoptic weather pattern which make it a source regions of ozone precursors within which these tracers remain confined and reinforce photochemical production of ozone. In addition, the continental tropical convergence zone and long range transport play a vital role. As a result, elevated levels of ozone concentration (maximum up to 80 ppbv) and its precursors with cellular structure of spatial variation with large seasonality are noticed.

Item Type: Article
Additional Information: Copyright of this article belongs to the American Geophysical Union.
Uncontrolled Keywords: Air pollution; Atmospheric chemistry; Boundary layers; Climate change; Particulate emissions; Photochemical reactions; Transport properties, Boundary layer ozone; Continental tropical convergence zone, Ozone, alluvial plain; atmospheric chemistry; boundary layer; emission; intertropical convergence zone; ozone; photochemistry; spatial variation, Asia; Eurasia; Himalayas
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 29 Dec 2014 12:02
Last Modified: 29 Dec 2014 12:02
URI: http://moeseprints.incois.gov.in/id/eprint/1918

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