• Rajat Verma
• Amarendra Singh
• Atul Kumar Srivastava
• Prabhat Kumar Patel

The frequency of extreme weather events is continuously growing. This is because of the rapid change in the global climate. This has resulted in dust storm events across globe. In India, on April 27, 2021, a severe dust storm occurred in the Ahmedabad region. A study was done using a combination of satellite observations, reanalysis data, and ground-based measurements. The primary focus of the study is to determine the transport of dust storm and their effects on aerosol characteristics and air quality over the region. Further, back trajectory analysis observed that the air mass parcels originated from the desert areas of Pakistan, Iran, and Iraq. Some air parcels have origins in the Thar Desert. The study reveals that a sudden jump in PM concentrations was observed from the System of Air Quality and Weather Forecasting (SAFAR) dataset, indicating severe deterioration in the air quality during the dust storm event. The aerosol optical parameters, including Aerosol Optical Depth (AOD), show a big jump while the Ångström exponent (AE) shows a decline. This decreased AE value shows the existence of coarser aerosol particles in the region. Further, AI values exceeding unity show the presence of UV-absorbing aerosols in the region. This study collectively highlights the variations in atmospheric chemistry during the dust storm in the Ahmedabad region.

Dust storm, Ahmedabad, SAFAR, Back-trajectory, Aerosol optical parameters

"Examination of a Dust Storm Event in Ahmedabad region: Its Consequences on Aerosol Properties and Air Quality", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 9, page no.f1-f8, September-2023, Available :http://www.jetir.org/papers/JETIR2309501.pdf

"Examination of a Dust Storm Event in Ahmedabad region: Its Consequences on Aerosol Properties and Air Quality", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 9, page no. ppf1-f8, September-2023, Available at : http://www.jetir.org/papers/JETIR2309501.pdf