Summary: | Lidar measurements were performed in the framework of the EARLINET and SPALINET networks during the eruption of Eyjafjalla volcano (Iceland) since 14 April 2010. The profiles of the aerosol optical properties, namely backscatter and extinction coefficients, lidar ratio and Angström exponent, show the presence of volcanic aerosol layers over all SPALINET stations since 5 May. The volcanic particles were monitored both within the planetary boundary layer and in decoupled layers up to 8 km agl over the Iberian Peninsula. This is the first time that the spatial and temporal distributions of volcanic aerosols have been studied with active remote sensing techniques over the Iberian Peninsula. Postprint (published version)
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