Articles | Volume 21, issue 7
Research article
08 Apr 2021
Research article |  | 08 Apr 2021

Using TROPOspheric Monitoring Instrument (TROPOMI) measurements and Weather Research and Forecasting (WRF) CO modelling to understand the contribution of meteorology and emissions to an extreme air pollution event in India

Ashique Vellalassery, Dhanyalekshmi Pillai, Julia Marshall, Christoph Gerbig, Michael Buchwitz, Oliver Schneising, and Aparnna Ravi

Data sets

S5P TROPOMI/WFMD data O. Schneising, M. Buchwitz, M. Reuter, H. Bovensmann, J. P. Burrows, T. Borsdorff, N. M. Deutscher, D. G. Feist, D. W. T. Griffith, F. Hase, C. Hermans, L. T. Iraci, R. Kivi, J. Landgraf, I. Morino, J. Notholt, C. Petri, D. F. Pollard, S. Roche, K. Shiomi, K. Strong, R. Sussmann, V. A. Velazco, T. Warneke, and D. Wunch

S5P TROPOMI/SICOR operational data T. Borsdorff, J. Aan De Brugh, H. Hu, O. Hasekamp, R. Sussmann, M. Rettinger, F. Hase, J. Gross, M. Schneider, O. Garcia, W. Stremme, M. Grutter, Di. G. Feist, S. G. Arnold, M. De Mazière, M. Kumar Sha, D. F. Pollard, M. Kiel, C. Roehl, P. O. Wennberg, G. C. Toon, and J. Landgraf

Central Control Room for Air Quality Management - All India Central Pollution Control Board

Model code and software

WRF-Chem source code (version R. Ahmadov, J. Schnell, G. Grell, K. Y. Wong, and L. Zhang

Video abstract

TROPOMI measurements and WRF CO modelling to understand extreme air pollution events in India Ashique Vellalassery and Dhanyalekshmi Pillai

Short summary
We investigate factors contributing to the severe and persistent air quality degradation in northern India that has worsened during every winter over the last decade. This is achieved by implementing atmospheric modelling and using recently available Sentinel-5 P satellite data for carbon monoxide. We see a minimal role of biomass burning, except for the state of Punjab. The aim is to focus on residential and industrial emission reduction strategies to tackle air pollution over northern India.
Final-revised paper