in situ
Condensation particle counter (CPC)
The TSI model 3750 Condensation Particle Counter is an instrument that detects airborne particles down to 7 nanometers in diameter at an aerosol flow rate of 1.0 liter per minute, over a concentration range of 0-100 000 #/cm3.The aerosol sample is drawn continuously through a heated saturator in which butanol is vaporized and diffuses into […]Optical Particle Sizer
The Optical Particle Sizer performs measurements of the size distribution of aerosols samplings between 0.8 µm and 10 µm. This part of the size distribution of aerosols is measured continuously and gives information mainly for the coarse mode. L2B data available under ACTRIS framework at https://ebas.nilu.no/data-access/ (research key "Pic du Midi").3-wavelengths integrating nephelometer
The Ecotech Aurora 3000 nephelometer simultaneously measures at 450 nm (blue), 525 nm (green) and 635 nm (red) to enable analysis of the interaction between light and aerosols. The nephelometer includes measurements that allow both standard integrating scattering measurements of 9 – 170° and also the backscatter 90 – 170°. Scattering and back scattering properties […]Aethalometer 7 wavelengths
(Filter absorption photometer) The aethalometer Magee Scientific AE33 enables to perform continuous measurements of aerosol Black Carbon (mostly named eqBC for equivalent Black Carbon, as the principle of measurement is based on optical attenuation). The aerosol-laden air stream is drawn through a spot on a filter tape at a measured flow rate. Simultaneously, the tape […]Grelimeter

Meteorological Station at PDM
ituée sur le toit du bâtiment T55, la station météorologique P2OA du Pic du Midi est constituée, autour d’une centrale météo Vaisala HydroMet MAWS 301, des capteurs suivants : Capteur de température et d’humidité Vaisala QMH 102 (HMP45D)Capteur de pression Vaisala PMT16ACapteur de rayonnement global Vaisala CM6BCapteur de vent sonique 3D Metek USA-1 [1]. NB. Par vent […]