Optical properties of Saharan dust layers as detected by a Raman lidar at Thessaloniki, Greece

Balis, DS; Amiridis, V; Nickovic, S; Papayannis, A; Zerefos, C

dc.contributor.author	Balis, DS	en
dc.contributor.author	Amiridis, V	en
dc.contributor.author	Nickovic, S	en
dc.contributor.author	Papayannis, A	en
dc.contributor.author	Zerefos, C	en
dc.date.accessioned	2014-03-01T01:21:11Z
dc.date.available	2014-03-01T01:21:11Z
dc.date.issued	2004	en
dc.identifier.issn	0094-8276	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/16121
dc.subject	Boundary Layer	en
dc.subject	Global Change	en
dc.subject	Indexing Terms	en
dc.subject	Instruments and Techniques	en
dc.subject	Optical Properties	en
dc.subject	Remote Sensing	en
dc.subject	Color Index	en
dc.subject.classification	Geosciences, Multidisciplinary	en
dc.subject.other	TO-BACKSCATTER RATIO	en
dc.subject.other	TROPOSPHERIC AEROSOL	en
dc.subject.other	EARLINET PROJECT	en
dc.subject.other	EAST-ASIA	en
dc.subject.other	EXTINCTION	en
dc.subject.other	FRAMEWORK	en
dc.title	Optical properties of Saharan dust layers as detected by a Raman lidar at Thessaloniki, Greece	en
heal.type	journalArticle	en
heal.identifier.primary	10.1029/2004GL019881	en
heal.identifier.secondary	http://dx.doi.org/10.1029/2004GL019881	en
heal.identifier.secondary	L13104	en
heal.language	English	en
heal.publicationDate	2004	en
heal.abstract	Measurements during Saharan dust transport events were performed at several stations of the European Aerosol Research Lidar Network. During the period 2001 - 2002, 12 cases were captured at Thessaloniki, Greece ( 40.5 degrees N, 22.9 degrees E) with a 355 nm Raman lidar. For these cases the vertical profiles of the extinction and backscatter coefficients were determined and examined, as well as profiles of extinction-to-backscatter ratio ( lidar ratio) and the backscatter-related Angstrom exponent between 355 and 532 nm ( color index). Model calculations from the DREAM model confirmed the existence of Saharan dust in all cases examined. Within the dust plumes the lidar ratios ranged from 20 to 100 sr and the color index ranged from - 1 to 3. An anticorrelation was found between the lidar ratio and the color index during the Saharan dust events. In certain cases the results suggest that the mixing of dust particles with boundary layer aerosols reduces the dust 'signature' and thus, makes difficult the separation of the dust particles from those of mostly urban origin.	en
heal.publisher	AMER GEOPHYSICAL UNION	en
heal.journalName	GEOPHYSICAL RESEARCH LETTERS	en
dc.identifier.doi	10.1029/2004GL019881	en
dc.identifier.isi	ISI:000222796800002	en
dc.identifier.volume	31	en
dc.identifier.issue	13	en