Extinction of solar radiation over the east mediterranean under sahara dust influence

Bali, D; Papayannis, A; Kalivitis, N; Chourdakis, G; Amiridis, V; Vrekoussis, M; Mihalopoulos, N; Kanakidou, M; Tsaknakis, G

dc.contributor.author	Bali, D	en
dc.contributor.author	Papayannis, A	en
dc.contributor.author	Kalivitis, N	en
dc.contributor.author	Chourdakis, G	en
dc.contributor.author	Amiridis, V	en
dc.contributor.author	Vrekoussis, M	en
dc.contributor.author	Mihalopoulos, N	en
dc.contributor.author	Kanakidou, M	en
dc.contributor.author	Tsaknakis, G	en
dc.date.accessioned	2014-03-01T02:49:46Z
dc.date.available	2014-03-01T02:49:46Z
dc.date.issued	2004	en
dc.identifier.issn	03796566	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/34731
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-3142645081&partnerID=40&md5=88d44a3a9d9688608422cf99ba022d66	en
dc.subject.other	Absorption	en
dc.subject.other	Aerosols	en
dc.subject.other	Backscattering	en
dc.subject.other	Clouds	en
dc.subject.other	Color	en
dc.subject.other	Composition	en
dc.subject.other	Condensation	en
dc.subject.other	Deposition	en
dc.subject.other	Dust	en
dc.subject.other	Light extinction	en
dc.subject.other	Optical properties	en
dc.subject.other	Optical radar	en
dc.subject.other	Optical resolving power	en
dc.subject.other	Reflection	en
dc.subject.other	Aerosol lidars	en
dc.subject.other	Color index values	en
dc.subject.other	Lidar ratio	en
dc.subject.other	Raman lidars	en
dc.subject.other	Solar radiation	en
dc.title	Extinction of solar radiation over the east mediterranean under sahara dust influence	en
heal.type	conferenceItem	en
heal.publicationDate	2004	en
heal.abstract	The extinction of solar radiation due to the presence of dust over the East Mediterranean region has been documented by multi-wavelength aerosol lidar measurements at three stations over Greece during August and September 2003. At the southeast located station of Finokalia, on Crete island, a single-wavelength lidar (532 nm) has been operated, whereas in Athens and Thessaloniki backscatter-Raman lidars were used at 355 nm and 532 nm. The aerosol lidar in Athens provided aerosol vertical profiles between 600 m above sea level (asl) and 7 km height with a range resolution of 15 m and a temporal resolution of 1.5 min. The Raman lidar in Thessaloniki measured aerosols between 800 m asl and 3.5 km with a range resolution of 30 m and a time resolution of 6 min. The single-wavelength lidar has been operated to observe aerosol layers from about 400 m asl. to 7 km height with a vertical resolution of 7.5 m and a time resolution of 6.6 min. Absorption and scattering of the surface aerosol layer have been measured by a PSAP and a nephelometer that operated continuously at the Finokalia station. This network of 3 lidar stations allowed the observation of the same dust layers in the height range of 2000-5000 m asl. as well as their spatial evolution over the East Mediterranean region. The lidar ratio values found are characteristic also for rather spherical mineral particles, while the color index values found are typical for desert dust.	en
heal.journalName	European Space Agency, (Special Publication) ESA SP	en
dc.identifier.volume	2	en
dc.identifier.issue	561	en
dc.identifier.spage	869	en
dc.identifier.epage	872	en