Contributo in atti di convegno, 2023, ENG, 10.1117/12.2685167

Analysis of atmospheric aerosol properties using lidar measurements and their impact on radiative budget in Barcelona over the past 20 years

Lolli Simone, Michaël Sicard, Adolfo Comerón, Cristina Gil-Díaz, Daniel Camilo Dos Santos Oliveira, Tony C. Landi, Alejandro Rodríguez-Gómez, Constantino Munoz-Porcar, Francesc Rocadenbosch, Federico Dios

a. Italian National Research Council CNR-IMAA, Tito Scalo (PZ), 85050, Italy b. CommSensLab, Dept. of Signal Theory and Communications, Universitat Politènica de Catalunya, Barcelona, 08034, Spain c. Lab. de l'Atmosphère et des Cyclones, Univ. de La Réunion, Saint Denis, 97744, France d. CNR-ISAC, Via Gobetti 101, Bologna, 40129, Italy e. Institut d'Estudis Espacials de Catalunya, Barcelona, 08034, Spain

Aerosols are significant atmospheric constituents that modulate radiation and cloud processes. We evaluated 17-year aerosol profile trends in Barcelona, Spain, from lidar measurements. In summer aerosol reaches 5 km, while in the other seasons it exhibits clear exponential decay. Sahara dust transport affects all seasons, with winter layers above and others penetrating the boundary layer. This study informs the formation of haze and urban preservation strategies in the Mediterranean. The analysis puts in evidence that the averaged net radiative effect is of cooling at both surface level and top of the atmosphere.

Image and Signal Processing for Remote Sensing XXIX 2023, pp. Art.n.1273007–Art.n.1273007, Amsterdam, 4 September 2023through 5 September 2023

Keywords

Aerosol profiles, Aerosol Radiative Effects, Air Quality, Lidar Remote Sensing

CNR authors

Lolli Simone

CNR institutes

IMAA – Istituto di metodologie per l'analisi ambientale