Articles | Volume 17, issue 1
Atmos. Chem. Phys., 17, 257–275, 2017
https://doi.org/10.5194/acp-17-257-2017
Atmos. Chem. Phys., 17, 257–275, 2017
https://doi.org/10.5194/acp-17-257-2017

Research article 05 Jan 2017

Research article | 05 Jan 2017

Variations in O3, CO, and CH4 over the Bay of Bengal during the summer monsoon season: shipborne measurements and model simulations

Imran A. Girach et al.

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This study presents first ship-borne measurements of trace gases over the Bay of Bengal during summer monsoon. The observed variations in trace gases are shown to be due to dynamics/transport and en route photochemistry. Analysis of meteorological and chemical fields shows that significantly lower ozone during rainfall is associated with the downdrafts. A regional model reproduces the observed variations and revealed the rapid transport of ozone across the Bay of Bengal during an event.
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