INTERNATIONAL CONGRESS ON RECENT ADVANCES IN SCIENCES AND TECHNOLOGY - Kuala Lumpur - Malaysia (2019-02-20)

SCIAMACHY NOX its Spatio-temporal variations and transport pathways over India during 2003-2011
The combustion of fuels and biomass and certain industrial activities result in the release of highly toxic air pollutants. Nitrogen dioxide (NO2) is the major trace gas pollutant affecting the climate. For this study, a Scanning Imaging Absorption Spectrometer for Atmospheric Chartography (SCIAMACHY) was used to observe tropospheric NO2 levels over India during 2003-2011. The highest tropospheric NO2 concentration (20-18 molecules cm-2) was observed in the summer season of 2010-2011 over the northern Indo-Gangetic (IG) plain. Due to a high north-eastern wind speed of 40 m s-1, the tropospheric NO2 mixing ratios at 350 hPa in November-May during 2003-2011 ranged from 200-230 µg m–3. We also observed that the NO2 mixing ratios decreased to 80-100 µg m-3 over the Arabian Sea and to approximately 90 µg m-3 over the Bay of Bengal due to thunderstorms and long-range pollutant transport. Keywords: SCIAMACHY, NO2, Biomass Burning, Air Pollution, Climate change
Mr. SANDIP PALVE, Dr. Pravin Nemade