High-resolution biogenic global emission inventory for the time period 2000–2019 for air quality modelling

Abstract. Biogenic volatile organic compounds (BVOCs) emitted from the terrestrial vegetation into Earth's atmosphere play an important role in atmospheric chemical processes. Gridded information of their temporal and spatial distribution is therefore needed for proper representation composition by air quality models. Here we present three newly developed high-resolution global emission inventories main BVOC species including isoprene, monoterpenes, sesquiterpenes, methanol, acetone ethene. Monthly mean monthly averaged daily profile emissions were calculated Model Emission Gases Aerosols Nature (MEGANv2.1) driven meteorological reanalyses European Centre Medium-Range Weather Forecasts period 2000–2019. The dataset CAMS-GLOB-BIOv1.2 based on ERA-Interim meteorology (0.5? × 0.5? horizontal resolution); datasets CAMS-GLOB-BIOv3.0 v3.1 with ERA5 (both 0.25? resolution). Furthermore, isoprene potential data updated using land cover maps detailed tree factors EMEP MSC-W model system. Updated are included CAMS-GLOB-BIOv3.1 dataset. effect annually changing captured as it was provided Climate Change Initiative Space Agency (ESA-CCI). total annual over simulated vary between 424 to 591 Tg (C) yr?1, 299.1 440.5 (isoprene) yr?1. Differences variation estimates provide uncertainty range sources uncertainty, i.e. inputs, description. CAMS-GLOB-BIO time series monoterpenes compared other available data. There a general agreement interannual variability estimates, values fall within range. (CAMS-GLOB-BIOv1.2, https://doi.org/10.24380/t53a-qw03, Sindelarova et al., 2021a; CAMS-GLOB-BIOv3.0, https://doi.org/10.24380/xs64-gj42, 2021b; CAMS-GLOB-BIOv3.1, https://doi.org/10.24380/cv4p-5f79, 2021c) distributed Emissions Compounds Compilation Ancillary Data (ECCAD) system (https://eccad.aeris-data.fr/, last access: June 2021).