Saharan dust intrusions over southern Portugal: overall characterization and atmospheric synoptic patterns (2005-2015) Fragoso M, Silva T, Correia E, Vasconcelos J, Lopes A, Carraça MG Saharan dust intrusions are a phenomenon responsible for several environmental impacts over the Mediterranean regions. Regarding the Iberian Peninsula, very scarce studies have addressed this topic in Portugal contrasting to the ...