Article

Weak pressure gradient over the Iberian Peninsula and African dust outbreaks: A new dust long-transport scenario

Journal ar
Bulletin of the American Meteorological Society
  • Volumen: 93
  • Número: 8
  • Fecha: 01 August 2012
  • Páginas: 1125-1132
  • ISSN: 00030007
  • Source Type: Journal
  • DOI: 10.1175/BAMS-D-10-05000.1
  • Document Type: Article
Weak pressure gradient over the Iberian Peninsula and African dust outbreaks is discussed. African dust in the southeast Iberian Peninsula was detected at surface levels in southeastern Iberia during 562 of 1,613 days between January 2004 and May 2008. On October 7, 2006, the Iberian plateau was affected by a high over the Bay of Biscay at mean sea level pressure. On October 9, 2006, the system of high pressure at mean sea level continued over Central Europe, with scarce influence over Spain. The highest air masses remain within a radius of around 800 km during the five days, when substantial levels of African dust are detected. by examining the levels of particulate matter (PM) every day and the models of the origin and trajectory of the air masses, it can be concluded that synoptic patterns without strong systems can be responsible for peaks in atmospheric pollution across parts of Iberia.

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