Global high-resolution emissions of soil NOx, sea salt aerosols, and biogenic volatile organic compounds

• Published in: Scientific data Vol. 7; no. 1
• Main Authors: Weng, Hongjian, Lin, Jintai, Martin, Randall, Millet, Dylan B., Jaeglé, Lyatt, Ridley, David, Keller, Christoph, Li, Chi, Du, Mingxi, Meng, Jun
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 20.05.2020; Nature Publishing Group
• Subjects: 704/106/35; 704/172; Acetaldehyde; Acetone; Aerosols; Air quality; Air quality measurements; Atmosphere; Carbon cycle; Climate change; Computer applications; Data Descriptor; Emissions; Ethanol; Ethene; Humanities and Social Sciences; Isoprene; Limonene; Monoterpenes; multidisciplinary; Organic compounds; Pollutants; Pollution sources; Saline soils; Science; Science (multidisciplinary); Spatial discrimination; VOCs; Volatile organic compounds
• ISSN: 2052-4463; 2052-4463
• DOI: 10.1038/s41597-020-0488-5

Natural emissions of air pollutants from the surface play major roles in air quality and climate change. In particular, nitrogen oxides (NO x ) emitted from soils contribute ~15% of global NO x emissions, sea salt aerosols are a major player in the climate and chemistry of the marine atmosphere, and biogenic emissions are the dominant source of non-methane volatile organic compounds at the global scale. These natural emissions are often estimated using nonlinear parameterizations, which are sensitive to the horizontal resolutions of inputted meteorological and ancillary data. Here we use the HEMCO model to compute these emissions worldwide at horizontal resolutions of 0.5° lat. × 0.625° lon. for 1980–2017 and 0.25° lat. × 0.3125° lon. for 2014–2017. We further offer the respective emissions at lower resolutions, which can be used to evaluate the impacts of resolution on estimated global and regional emissions. Our long-term high-resolution emission datasets offer useful information to study natural pollution sources and their impacts on air quality, climate, and the carbon cycle. Measurement(s) nitrogen oxide • aerosol • isoprene • acetone • acetaldehyde • ethene • ethanol • propene • monoterpene • lumped monoterpenes • limonene • sesquiterpene • Emission • sea salt aerosol Technology Type(s) computational modeling technique Factor Type(s) spatial resolution • temporal resolution Sample Characteristic - Environment saline aerosol environment • soil environment • atmospheric ozone • vegetation layer • atmosphere Sample Characteristic - Location Earth (planet) Machine-accessible metadata file describing the reported data: https://doi.org/10.6084/m9.figshare.12205379