Instrumentation de base

Le parc instrumental de la plateforme mobile PEGASUS est dédié à la caractérisation de la composition atmosphérique (aérosols et gaz trace), et en particulier à l’étude des propriétés des aérosols atmosphériques qui en conditionnent les effets direct et indirect sur le bilan de rayonnement. PEGASUS est ainsi équipée d’instruments qui lui sont propres et qui sont systématiquement mis en œuvre lors d’une campagne (instrumentation de base), ainsi que de l’instrumentation de l’équipe MEREIA et plus généralement du LISA qui sont mis à disposition selon l’objectif scientifique de la campagne (instrumentation optionnelle).

AEROSOL

Condensation Particles Counter
TSI – CPC 3772
Total number concentration
Microbalance
Thermo – TEOM
Total mass concentration
Scanning Mobilty Partcle Sizer
TSI – SMPS
Size Distribution
diameter 10 – 450 nm
Optical Particle Counter
GRIMM – OPC 1.109
Size Distribution
diameter 0.25 – 32 um
Integrating nephelometer
TSI 3596
Scattering Coefficients
450 550 700 nm
Aethalometer
Magee AE31
Attenuation Coefficients
370 420 470 590 660 880 950 nm
Lidar
Leosphere ALS300
Backscatter, Extinction Coefficients and Depolarization
355 nm
Particle Into Liquid Sempler with on line cromatography
PILS-IC
Anionic and cationic soluble fraction of the total aerosol
Single-stage Filter Sampling
Filter types: nuclepore, quartz, teflon
Bulk inorganic and organic aerosol composition
Four-stage Filter Sampling
Filter types: nuclepore, quartz, teflon
Size-segregated inorganic and organic aerosol composition
Impactor sampling on carbon-coated grids Single particle analysis (morphology, mixing state) by
transmission electron microscopy with energy dispersive X-ray analysis (TEM-EDX)

GAS

Sulfure Dioxide
HORIBA – APSA 370
SO2 Mixing Ratio
Ozone
HORIBA – APOA 370
O3 Mixing Ratio
Nitorgen Oxides
HORIBA – APNA 370
NOx NO2 NO Mixing Ratio
Carbon Oxide and Dioxide
PICARRO – G3202
CO CO2 Mixing Ratio
Kore high-resolution Proton transfer reaction time of flight mass spectrometry
PTR-ToF-MS
Primary and secondary volatile organic compounds (VOCs), including of DMS, DMDS, DES,acetone, acetaldehyde, methanol, ethanol, benzene, toluene, and others

OTHER:

Meteorological Observations
CIMEL
Surface temperature, humidity, wind speed and direction
Solar Radiation
LICOR LI1800
Spectral downwelling radiative
300 – 850 nm resolution 1 nm