Detection of wildfire pollution in the Arctic using a network of FTIR spectrometers and GEOS-Chem

• Main Authors: Lutsch, E., Strong, K., Jones, D.B.A., Blumenstock, T., Conway, S., Evans, M.J., Fisher, J.A., Hannigan, J.W., Kasai, Y., Mahieu, Emmanuel, Makarova, M., Morino, I., Murphy, K., Morris, E., Nagahama, T., Notholt, J., Ortega, I., Palm, M., Sussmann, R.
• Format: Lecture
• Language: English
• Published: 2019
• Subjects: Physical; chemical; mathematical & earth Sciences; Earth sciences & physical geography; Physique; chimie; mathématiques & sciences de la terre; Sciences de la terre & géographie physique; Arctic
• Online Access: https://orbi.uliege.be/handle/2268/267532

Ground-based FTIR instruments provide simultaneous measurements of CO, HCN and C2H6 at high-latitudes. Detection of CO enhancements and strong correlations with HCN and C2H6 are indicative of wildfire pollution events. The GEOS-Chem tagged CO simulation provides attribution of CO sources to FTIR measurements from 2003-2017. At all FTIR sites, wildfire pollution events are detected annually and attributed to Boreal wildfires in North America and Asia.