Numerical Simulation of Tehran Dust Storm on 2 June 2014: A Case Study of Agricultural Abandoned Lands as Emission Sources

On 2 June 2014, at about 13 UTC, a dust storm arrived in Tehran as severe hazard that caused injures, deaths, failures power supply, and traffic disruption. Such an extreme event is not considered common for the area, which has raised question of storm’s origin need increasing citizens’ preparedness during such events. The analysis observational data numerical simulations using coupled dust-atmospheric models showed intensive convective activity occurred over south southwest Tehran, produced cold downdrafts and, consequently, high-velocity surface winds. Different source masks were used input model hindcasts (forecasts past event) to show capability perform high-quality forecasts events expand knowledge on formation progression. In addition proven models, if engaged operational use contribute establishment early warning system storms, another conclusion appeared highlight this research: abandoned agricultural areas responsible 50% airborne concentration within surged through Tehran. simulation PM10 several thousand μm/m3, classifies it hot-spot. evidence indivisibly links issues land degradation, weather, environmental protection, health safety.