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Títol: Seasonal variability of aerosol optical properties observed by means of an elastic-Raman lidar over Northeastern Spain
Autor: Kumar, Dhiraj
Sicard, Michaël
Reba Mohd Nadzri, Md
Rocadenbosch Burillo, Francisco
Comerón Tejero, Adolfo
Tomás Martínez, Sergio
García Vizcaíno, David
Batet Torrell, Óscar
Barrios Porras, Ricardo Alfonso
Altres autors/autores: Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
Matèries: Àrees temàtiques de la UPC::Enginyeria electrònica i telecomunicacions::Processament del senyal
Aerosol
Signal theory (Telecommunication)
Aerosols
Senyal, Teoria del (Telecomunicació)
Tipus de document: Conference lecture
Descripció: The annual and seasonal variability of aerosol optical properties observed by means of an elastic-Raman lidar over Northeastern Spain has been assessed. The lidar representativeness has first been checked against un-photometer measurements in terms of aerosol optical thickness. Then the annual cycle and the seasonal variability of the planetary boundary layer aerosol optical thickness and its fraction compared to the columnar optical thickness, the lidar ratio, the backscatter-related A° ngstro¨m exponent and the planetary boundary layer height have been analyzed and discussed. Winter and summer mean profiles of extinction, backscatter and lidar ratio retrieved with the Raman algorithm have been presented. The analysis shows the impact of most of the natural events (Saharan dust intrusions, wildfires, etc.) and meteorological situations (summer anticyclonic situation, the formation of the Iberian thermal low, winter longrange transport from North Europe and/or North America, re-circulation flows, etc.) occurring in the Barcelona area. A detail study of a special event including a combined intrusion of Saharan dust and biomass-burning particles has proven the suitability of combining nighttime Raman- and daytime pure elastic-inversions to discriminate spatially different types of aerosols and to follow their spatial and temporal evolution.
Altres identificadors i accés: Sicard, M. [et al.]. Seasonal variability of aerosol optical properties observed by means of an elastic-Raman lidar over Northeastern Spain. "Atmospheric chemistry and physics discussions", 01 Juny 2010, vol. 10, p. 14053-14094.
1680-7367
http://hdl.handle.net/2117/7766
10.5194/acpd-10-14053-2010
Disponible al dipòsit:E-prints UPC
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