Mandal, T. K. and Khan, Ateef and Ahammed, Y. Nazeer and Tanwar, R. S. and Parmar, R. S. and Zalpuri, K. S. and Gupta, Prabhat K. and Jain, S. L. and Singh, Risal, Risal and Mitra, A. P. and Garg, S. C. and Suryanarayana, A. and Murty, V. S. N. and Kumar, M. Dileep and Shepherd, Andrew (2006) Observations of trace gases and aerosols over the Indian Ocean during the monsoon transition period. Journal of Earth System Science , 115 (4). pp. 473-484. ISSN 0973-774X

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Abstract

Characteristics of trace gases (O-3, CO, CO2, CH4 and N2O) and aerosols (particle, size of 2.5 micron) were studied over the Arabian Sea, equatorial Indian Ocean and southwest part of the Bay of Bengal during the monsoon transition period (October-November, 2004). Flow of pollutants is expected from south and southeast Asia during the monsoonal transition period due to the patterns of wind flow which are different from the monsoon period. This is the first detailed report on aerosols and trace gases during the sampled period as the earlier Bay of Bengal Experiment (BOBMEX), Arabian Sea Monsoon Experiment (ARMEX) and Indian Ocean Experiments (INDOEX) were during monsoon seasons. The significant observations during the transition period include: (i) low ozone concentration of the order of 5ppbv around the equator, (ii) high concentrations of CO2, mu g/m(3). CH4 and N2O and (iii) variations in PM2.5 of 5-20 mu g/m(3).

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s Indian Academy of Sciences.
Subjects:	Materials Science Meteorology & Atmospheric Sciences
Divisions:	UNSPECIFIED
Depositing User:	Users 27 not found.
Date Deposited:	11 May 2018 08:15
Last Modified:	11 May 2018 08:15
URI:	http://npl.csircentral.net/id/eprint/2521

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