ROxCOMP24

ROx InterCOMParison exercise 2024
IUP contribution funded by the AN 769/1 DFG Project SPRUCE (-extended to 2025)
Outdoor simulation chamber SAPHIR

Scientific objectives

ROxCOMP24 emerges as a complementary experiment in the framework of the ROXCOMP22 international intercomparison exercise. The ROxCOMP24 measurement campaign has a particular focus on the investigation of the effect of the thermal decomposition of peroxy acetyl nitrate (PAN) in the PeRCEAS accuracy during episodes of high temperatures in the SAPHIR chamber.

The campaign took place 2 weeks in August 2024. The PeRCEAS airborne instrument participated successfully in 8 daily experiments, in which FZ-Jülich simultaneously measured peroxy radicals, VOC, PAN and other ancillary species and parameters in the SAPHIR chamber. The interpretation of data is ongoing.