Dust-storm dynamics over Sistan region, Iran: Seasonality, transport characteristics and affected areas

•Seasonal variation of the dust storms over Sistan Basin, Iran.•Identification of the dust sources over southwest Asia with remote sensing techniques.•First application of IDDI over Sistan region.•Investigation of the dust-plume pathways and affected area.•Influence of the Sistan dust storms on aerosol loading over Arabian Sea.