Aerosol light scattering at Observatoire Perenne de l'Environnement. These measurements are gathered as a part of the following projects ACTRIS, GAW-WDCA and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: aerosol_light_backscattering_coefficient in aerosol (volume_backwards_scattering_coefficient_in_air_due_to_dried_aerosol_particles), aerosol_light_backscattering_coefficient in aerosol (volume_backwards_scattering_coefficient_in_air_due_to_dried_aerosol_particles), aerosol_light_backscattering_coefficient in aerosol (volume_backwards_scattering_coefficient_in_air_due_to_dried_aerosol_particles), aerosol_light_scattering_coefficient in aerosol (volume_scattering_coefficient_in_air_due_to_dried_aerosol_particles), aerosol_light_scattering_coefficient in aerosol (volume_scattering_coefficient_in_air_due_to_dried_aerosol_particles), aerosol_light_scattering_coefficient in aerosol (volume_scattering_coefficient_in_air_due_to_dried_aerosol_particles)