LPCA participated in a measurement campaign at LISA in the CESAM simulation chamber (https://www.cesam.cnrs.fr/) at the Université Paris-Est Créteil (UPEC). Below is a short summary and a photo of this measurement campaign:
The absorption of light by carbonaceous aerosols, such as BC and BrC, has important effects on the radiative balance and climate of the Earth. A precise knowledge of the optical absorption properties of these particles is essential in order to provide the necessary parameters for climate models and remote sensing in order to constrain their global and regional radiative effect. Nowadays, large-scale model calculations are still too poorly constrained to allow sufficiently precise assessments of the climatic effects of absorbing aerosols.
In this context, a BrC measurement campaign in the CESAM simulation chamber at the Interuniversity Laboratory of Atmospheric Systems (LISA) was organized within the ANR-B2C project (“Constraining the direct radiative effect of Black and Brown Carbon on climate: an innovative experimental study on their spectral optical properties”, coordinated by Claudia Di Biagio). The DFG group participated in this measurement campaign with a PAS instrument, developed within the ANR MABCaM project. The performances of our PAS instrument were tested, evaluated and validated via side-by-side inter-comparisons with reference instruments such as the aethalometer (AE33), SMPS (TSI 3080/TSI 3025), nephelometer (TSI 3596), TEOM monitor, etc.