Satellite and ground-based seasonal variability of NO2 and SO2 over New Delhi, India

Alok Kumar Pandey; Ram Pravesh Kumar; Krishan Kumar

doi:10.1117/12.2193542

16 October 2015 Satellite and ground based seasonal variability of NO₂ and SO₂ over New Delhi, India

Alok Kumar Pandey, Ram Pravesh Kumar, Krishan Kumar

Proceedings Volume 9640, Remote Sensing of Clouds and the Atmosphere XX; 96400U (2015) https://doi.org/10.1117/12.2193542
Event: SPIE Remote Sensing, 2015, Toulouse, France

Abstract

Remote sensing technology application emerges as a useful tool for exploring atmospheric pollution revelation in the last two decade. In this study, we used Aura satellite Ozone Monitoring Instrument (OMI) tropospheric NO₂ and pbl SO₂ retrieval data (October 2004 – September 2013) to generate a composite spatial map of different seasons over New Delhi National Capital Region (NCR). For surface measurements, we used Central Pollution Control Board (CPCB) NO₂ and SO₂ data (January 2005 – December 2013). Further, we compared the satellite retrievals data to the surface measurements. A higher NO₂ concentration in both OMI and CPCB stations measurements are obtained in winter season followed by summer and minimum in monsoon months. OMI SO₂ concentration is higher in monsoon months and almost comparable in summer and winter seasons. We obtained a statistically significant correlation between OMI tropospheric NO₂ and CPCB surface measurements.

Citation Download Citation

Alok Kumar Pandey, Ram Pravesh Kumar, and Krishan Kumar "Satellite and ground based seasonal variability of NO₂ and SO₂ over New Delhi, India", Proc. SPIE 9640, Remote Sensing of Clouds and the Atmosphere XX, 96400U (16 October 2015); https://doi.org/10.1117/12.2193542

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