caa a22 4500 467937842 CHVBK 20180406153002.0 cr unu---uuuuu 170328e20060201xx s 000 0 eng 10.1007/s00703-005-0137-8 doi (NATIONALLICENCE)springer-10.1007/s00703-005-0137-8 Daily and monthly averaged aerosol optical properties and diurnal variability deduced from AERONET sun-photometric measurements at Thala site (Tunisia) [Elektronische Daten] [M. Chaâbane, M. Masmoudi, K. Medhioub, F. Elleuch] Summary: Spectral aerosol optical thickness have been measured at Thala site (central West of Tunisia) from March to October 2001. The measurement site is located in a continental and non industrialized region, approximately 150 km from the North coast of the Mediterranean Sea and nearby the Algerian border. Thala site could be then influenced by the dust content of the continental air masses carried by western and southern winds. A second pollution source is constituted by industrial and/or maritime particles carried by northern and eastern winds. AOT measurements acquired through the ground-based AERONET are analyzed. The diurnal cycle over Thala and two other areas within the network showed various trends and a prevailing pattern of the optical thickness increase by 10-40% during the day. Daily AOT and monthly averaged aerosol optical thickness, Ångström coefficient and precipitable water vapor are computed and compared with those of other sites. Measured meteorological parameters represent a valuable supplement to the data sets with the sunphotometer measurements. The analysis of the results shows that there is a high correlation between aerosol optical properties (AOT and Ångström coefficient) and the local weather conditions, essentially wind speed and direction and air specific humidity. Springer-Verlag/Wien, 2005 Chaâbane M. Département de Physique, Faculté des Sciences de Sfax, Tunisia aut Masmoudi M. Département de Physique, Faculté des Sciences de Sfax, Tunisia aut Medhioub K. Institut Préparatoire aux Etudes d'Ingénieurs de Sfax, (IPEIS) Sfax, Tunisia aut Elleuch F. Institut National de la Météorologie, Subdivision de Sfax, Tunisia aut Meteorology and Atmospheric Physics Springer-Verlag 92/1-2(2006-02-01), 103-114 0177-7971 92:1-2<103 2006 92 703 https://doi.org/10.1007/s00703-005-0137-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00703-005-0137-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chaâbane M. Département de Physique, Faculté des Sciences de Sfax, Tunisia aut NATIONALLICENCE 700 1- Masmoudi M. Département de Physique, Faculté des Sciences de Sfax, Tunisia aut NATIONALLICENCE 700 1- Medhioub K. Institut Préparatoire aux Etudes d'Ingénieurs de Sfax, (IPEIS) Sfax, Tunisia aut NATIONALLICENCE 700 1- Elleuch F. Institut National de la Météorologie, Subdivision de Sfax, Tunisia aut NATIONALLICENCE 773 0- Meteorology and Atmospheric Physics Springer-Verlag 92/1-2(2006-02-01), 103-114 0177-7971 92:1-2<103 2006 92 703 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer