Weak pressure gradient over the Iberian Península and African dust outbreaks: a new dust long transport scenario
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Negral Álvarez, Luis; Moreno Grau, Stella; Querol Carceller, Xavier; Moreno Grau, José María; Viana Rodríguez, María del Mar; [et al.]Knowledge Area
Ingeniería QuímicaPublication date
2012Publisher
American Meteorological SocietyBibliographic Citation
NEGRAL ÁLVAREZ, Luis et al. Weak pressure gradient over the Iberian Península and African dust outbreaks: a new dust long transport scenario. En Bulletin of the American Meteorological Society, 2012, nº 93 (8) p. 1125-1132. ISSN 0003-0007Keywords
GeographyPhysics
African dust
Iberian Peninsula
Saharan dust
Particulate matter (PM)
Abstract
African dust outbreaks over the Iberian Peninsula have been related to four synoptic patterns responsible for the advection of dust: 1. A North African high located at surface level. 2. An Atlantic depression centered over northwestern Africa, western Iberia or the southwest of the Portuguese coast with an associated high or ridge over the Mediterranean Sea. 3. A North African depression. 4. A North African high located at upper levels. Consequently, particulate matter (PM) levels in Iberia are expected to rise when any of these atmospheric synoptic scenarios prevail. Nevertheless, PM levels might not increase due to wet deposition, as Spain receives the most African-derived dust rain events of any European country. In this study, a meteorological scenario different than the above situations is evaluated.
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