Articles | Volume 17, issue 1
https://doi.org/10.5194/acp-17-257-2017
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, Narendra Ojha, Prabha R. Nair, Andrea Pozzer, Yogesh K. Tiwari, K. Ravi Kumar, and Jos Lelieveld

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Cited articles

Ackermann, I. J., Hass, H., Memmesheimer, M., Ebel, A., Binkowski, F. S., and Shankar, U.: Modal aerosol dynamics model for Europe: development and first applications, Atmos. Environ., 32, 2981–2999, 1998.
Ahrens, C. D.: Meteorology Today- an introduction to weather, climate, and the environment, Brooks/Cole, USA, 2009.
Ali, K., Beig G., Chate D. M., Momin, G. A., Sahu, S. K., and Safai, P. D.: Sink mechanism for significantly low level of ozone over the Arabian Sea during monsoon, J. Geophys. Res., 114, D17306, https://doi.org/10.1029/2008JD011256, 2009.
Ansari, T. U., Ojha, N., Chandrasekar, R., Balaji, C., Singh, N., and Gunthe, S. S.: Competing impact of anthropogenic emissions and meteorology on the distribution of trace gases over Indian region, J. Atmos. Chem., 73, 363–380, https://doi.org/10.1007/s10874-016-9331-y, 2016.
Anurose, T. J., Subrahamanyam D. B., and Sunilkumar S. V.: Two years observations on the diurnal evolution of coastal atmospheric boundary layer features over Thiruvananthapuram (8.5° N, 76.9° E), India, Theor. Appl. Climatol., in press, https://doi.org/10.1007/s00704-016-1955-y, 2016.
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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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