ATMOS 22, İstanbul, Turkey, 18 - 21 October 2022, pp.1-15
While dust storms cause danger to humans and nature, they also cause very dangerous consequences for the aviation industry. Carrying dust particles with the wind, low meteorological visibility, and strong rushing winds cause significant problems such as aircraft taking off and landing. Dozens of dust storms took place in the Marmara Region of Türkiye between 2011 and 2021. To determine the impact of dust storms in the Marmara region, the Aviation Routine Weather Report (Metar) and the Aviation Selected Special Weather Report (Speci) reports of 12 airports were analyzed for this 10-year interval. This study aims to evaluate the effects of long-distance dust transport on the meteorological visibility of the airports in the Marmara region of Türkiye and to examine the changes in PM10 and PM2.5 values measured by air quality monitoring stations. This transport was investigated with the HYSPLIT model. To determine where the long-distance dust transport comes from, the outputs of backward trajectory analysis from the Hybrid Single Particle Lagrangian Integrated Trajectory (HYSPLIT) model were used. In addition, with the BSC-DREAM8b model outputs, it will be examined what values of air pollution reach when dust transport is present. By using Global Forecast System (GFS) synoptic maps, the effects of values such as the structure of weather systems and pressure changes on dust transport were investigated. Moreover, PM10 and PM2.5 values obtained from air quality monitoring stations were examined, and peak values occurring during dust transport were investigated. Finally, by comparing the PM10 and PM2.5 values obtained from all air quality monitoring stations, it was determined and discussed which regions are affected more by dust transport.