Meteorological patterns associated with intense saharan dust outbreaks over greece in winter

Citation:

Nastos, P.T. Meteorological patterns associated with intense saharan dust outbreaks over greece in winter. Advances in Meteorology 2012, (2012). Copy at http://www.tinyurl.com/gq9q6d7

Abstract:

The Mediterranean Basin and southern Europe are often affected by Saharan dust outbreaks, which influence the aerosol load and properties, air quality standards, visibility and human health. The present work examines, mainly of the meteorological point of view, three intense dust outbreaks occurred over Greece with duration of one or two days, on 4 and 6 February and 5-6 March 2009. The synoptic analysis on the dusty days showed the presence of low-pressure systems in the west coasts of Europe and the north Tyrrhenian Sea, respectively, associated with a trough reaching the north African coast. The result of these conditions was the strong surface and mid troposphere winds that carried significant amounts of dust over Greece. During the dusty days extensive cloud cover associated with the dust plume occurred over Greece. The air-mass trajectories showed a clear Saharan origin in all atmospheric levels, while the satellite (MODIS Terra/Aqua) observations as well as the model (DREAM) predictions verified the intense dust outbreaks over eastern Mediterranean and Greece. The ground based particulate matter concentrations in Athens were excessively increased on the dusty days (PM 150-560 g/m3), while significant dry and wet deposition occurred as forecasted by DREAM model. © 2012 P. T. Nastos.

Notes:

Cited By :10Export Date: 2 November 2015Correspondence Address: Nastos, P.T.; Laboratory of Climatology and Atmospheric Environment, University of Athens, Faculty of Geology and Geoenvironment, Panepistimiopolis, 15784 Athens, Greece; email: nastos@geol.uoa.grReferences: Kaskaoutis, D.G., Kambezidis, H.D., Nastos, P.T., Kosmopoulos, P.G., Study on an intense dust storm over Greece (2008) Atmospheric Environment, 42 (29), pp. 6884-6896. , 2-s2.0-51549095332 10.1016/j.atmosenv.2008.05.017;Summary for policymakers (2007) Climate Change 2007: The Physical Science Basis: Contribution of Working Group i to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, , Intergovernmental Panel on Climate Change (IPCC) Solomon S. Qin D. Manning M. 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