Systematic lidar observations of Saharan dust over Europe in the frame of EARLINET (2000-2002)

Papayannis, A; Amiridis, V; Mona, L; Tsaknakis, G; Balis, D; Bosenberg, J; Chaikovski, A; De Tomasi, F; Grigorov, I; Mattis, I; Mitev, V; Muller, D; Nickovic, S; Perez, C; Pietruczuk, A; Pisani, G; Ravetta, F; Rizi, V; Sicard, M; Trickl, T; Wiegner, M; Gerding, M; Mamouri, RE; D'Amico, G; Pappalardo, G

dc.contributor.author	Papayannis, A	en
dc.contributor.author	Amiridis, V	en
dc.contributor.author	Mona, L	en
dc.contributor.author	Tsaknakis, G	en
dc.contributor.author	Balis, D	en
dc.contributor.author	Bosenberg, J	en
dc.contributor.author	Chaikovski, A	en
dc.contributor.author	De Tomasi, F	en
dc.contributor.author	Grigorov, I	en
dc.contributor.author	Mattis, I	en
dc.contributor.author	Mitev, V	en
dc.contributor.author	Muller, D	en
dc.contributor.author	Nickovic, S	en
dc.contributor.author	Perez, C	en
dc.contributor.author	Pietruczuk, A	en
dc.contributor.author	Pisani, G	en
dc.contributor.author	Ravetta, F	en
dc.contributor.author	Rizi, V	en
dc.contributor.author	Sicard, M	en
dc.contributor.author	Trickl, T	en
dc.contributor.author	Wiegner, M	en
dc.contributor.author	Gerding, M	en
dc.contributor.author	Mamouri, RE	en
dc.contributor.author	D'Amico, G	en
dc.contributor.author	Pappalardo, G	en
dc.date.accessioned	2014-03-01T01:29:17Z
dc.date.available	2014-03-01T01:29:17Z
dc.date.issued	2008	en
dc.identifier.issn	0148-0227	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19203
dc.subject	Aerosol Optical Depth	en
dc.subject	Center of Mass	en
dc.subject	Linear Depolarization Ratio	en
dc.subject.classification	Meteorology & Atmospheric Sciences	en
dc.subject.other	Aerosols	en
dc.subject.other	Backscattering	en
dc.subject.other	Climate change	en
dc.subject.other	Dust	en
dc.subject.other	Optical radar	en
dc.subject.other	aerosol	en
dc.subject.other	atmospheric plume	en
dc.subject.other	backscatter	en
dc.subject.other	dust	en
dc.subject.other	geographical region	en
dc.subject.other	lidar	en
dc.subject.other	observational method	en
dc.subject.other	optical depth	en
dc.subject.other	wavelength	en
dc.subject.other	Eurasia	en
dc.subject.other	Europe	en
dc.subject.other	Southern Europe	en
dc.title	Systematic lidar observations of Saharan dust over Europe in the frame of EARLINET (2000-2002)	en
heal.type	journalArticle	en
heal.identifier.primary	10.1029/2007JD009028	en
heal.identifier.secondary	http://dx.doi.org/10.1029/2007JD009028	en
heal.identifier.secondary	D10204	en
heal.language	English	en
heal.publicationDate	2008	en
heal.abstract	More than 130 observation days of the horizontal and vertical extent of Saharan dust intrusions over Europe during the period May 2000 to December 2002 were studied by means of a coordinated lidar network in the frame of the European Aerosol Research Lidar Network (EARLINET). The number of dust events was greatest in late spring, summer, and early autumn periods, mainly in southern (S) and southeastern (SE) Europe. Multiple aerosol dust layers of variable thickness (300-7500 m) were observed. The center of mass of these layers was located in altitudes between 850 and 8000 m. However, the mean thickness of the dust layer typically stayed around 1500-3400 m and the corresponding mean center of mass ranged from 2500 to 6000 m. In exceptional cases, dust aerosols reached northwestern (NW), northern (N), or northeastern (NE) Europe, penetrating the geographical area located between 4°W-28°E (longitude) and 38°N-58°N (latitude). Mean aerosol optical depths (AOD), extinction-to-backscatter ratios (lidar ratios, LR), and linear depolarization ratios of desert aerosols ranged from 0.1 to 0.25 at the wavelength of 355 or 351 nm, 30 to 80 sr at 355 or 351 mn, and 10 to 25% at 532 nm, respectively, within the lofted dust plumes. In these plumes typical Saharan dust backscatter coefficients ranged from 0.5 to 2 Mm-1sr-1. Southern European stations presented higher variability of the LR values and the backscatter-related Ångström exponent. values (BRAE) :20-100 sr; BRAE: -0.5 to 3) than northern ones (LR: 30-80 sr; BRAE: -0.5 to 1). Copyright 2008 by the American Geophysical Union.	en
heal.publisher	AMER GEOPHYSICAL UNION	en
heal.journalName	Journal of Geophysical Research D: Atmospheres	en
dc.identifier.doi	10.1029/2007JD009028	en
dc.identifier.isi	ISI:000256358900001	en
dc.identifier.volume	113	en
dc.identifier.issue	10	en