Atmospheric aerosol particles, according to the IPCC (2013), are playing a major role in climate change affecting the Earth's radiative balance: directly by absorbing and scattering of solar radiation and indirectly by supporting for cloud condensation. In this study we investigate a continuous measurements, in real time, in order to characterize the optical proprieties at coastal site Lamezia Terme (38,88 LAT 16,24 LON, 6m agl) in Calabrian Region, using integrating Nephelometer and a Multi-Angle Absorption Photometer (MAAP) instruments. We study the diurnal evolution of the scattering coefficient, Sc(?), The Back Scatter coefficient, BSc(?), the scattering Ångström exponent, A, the backscatter ratio, b, absorption coefficient of Black Carbon (BC) and Single Scattering Albedo, SSA. Decreases in SSA are observed when the wind blow from the sector characterised by local pollutant sources and during hours of the increased traffic density. In this study significant correlation coefficients are found between different aerosol optical properties.
Preliminary analysis of aerosols optical properties at the coastal site Lamezia Terme, in Central Mediterranean Area, integrating data of different instruments
Teresa Lo Feudo;Daniel Gullì;Claudia Roberta Calidonna
2015
Abstract
Atmospheric aerosol particles, according to the IPCC (2013), are playing a major role in climate change affecting the Earth's radiative balance: directly by absorbing and scattering of solar radiation and indirectly by supporting for cloud condensation. In this study we investigate a continuous measurements, in real time, in order to characterize the optical proprieties at coastal site Lamezia Terme (38,88 LAT 16,24 LON, 6m agl) in Calabrian Region, using integrating Nephelometer and a Multi-Angle Absorption Photometer (MAAP) instruments. We study the diurnal evolution of the scattering coefficient, Sc(?), The Back Scatter coefficient, BSc(?), the scattering Ångström exponent, A, the backscatter ratio, b, absorption coefficient of Black Carbon (BC) and Single Scattering Albedo, SSA. Decreases in SSA are observed when the wind blow from the sector characterised by local pollutant sources and during hours of the increased traffic density. In this study significant correlation coefficients are found between different aerosol optical properties.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.