Long-term fluxes of carbonyl sulfide and their seasonality and interannual variability in a boreal forest
Timo Vesala,Kukka-Maaria Kohonen,Linda M. J. Kooijmans,Arnaud P. Praplan,Lenka Foltýnová,Pasi Kolari,Markku Kulmala,Jaana Bäck,David Nelson,Dan Yakir,Mark Zahniser,and Ivan Mammarella
Timo Vesala
Institute for Atmospheric and Earth System Research/Physics, University of Helsinki, Helsinki, Finland
Institute for Atmospheric and Earth System Research/Forest Sciences, University of Helsinki, Helsinki, Finland
Scientific and Educational Centre “Dynamics of the Environment and Global Climate Change”, Yugra State University, Khanty-Mansiysk, Russia
Carbonyl sulfide (COS) provides new insights into carbon cycle research. We present an easy-to-use flux parameterization and the longest existing time series of forest–atmosphere COS exchange measurements, which allow us to study both seasonal and interannual variability. We observed only uptake of COS by the forest on an annual basis, with 37 % variability between years. Upscaling the boreal COS uptake using a biosphere model indicates a significant missing COS sink at high latitudes.
Carbonyl sulfide (COS) provides new insights into carbon cycle research. We present an...