Identifying fire plumes in the Arctic

We investigate Arctic tropospheric composition using ground-based Fourier Transform Infrared (FTIR) solar absorption spectra, recorded at the Polar Environment Atmospheric Research Laboratory (PEARL, Eureka, Nunavut, Canada, 80°5' N, 86°42' W) and at Thule (Greenland, 76°53' N, −68°74' W) from 2008 to 2012. The target species: carbon monoxide (CO), hydrogen cyanide (HCN), ethane (C₂H₆), acetylene (C₂H₂), formic acid (HCOOH), and formaldehyde (H₂CO) are emitted by biomass burning and can be transported from mid-latitudes to the Arctic.