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Monitoring and characterization of atmospheric aerosols with Raman and dual-polarization lidars

Atmospheric aerosols play a key role on climate balance (direct, semi-direct and indirect effects), on human health (increase of breathing problems and lung cancer for pollution aerosols) and human activities (damage to aircraft engines by volcanic ashes, reduction of visibility by dust or pollution aerosols). In order to monitor and characterize this threat it is necessary to localize, characterize and possibly quantify the presence of aerosols in the atmosphere from the lowest layers (~100 m) up to the tropopause (18 km). We use here an approach based on measurements of the new Raman and dual-polarization LiDAR R-Man510. We present in this paper how it is possible to detect atmospheric layers, to retrieve their optical properties and to classify these layers with this sensor.