Global organic and inorganic aerosol hygroscopicity and its effect on radiative forcing.

Autor: Pöhlker ML; Multiphase Chemistry Department, Max Planck Institute for Chemistry, 55128, Mainz, Germany. poehlker@tropos.de.; Faculty of Physics and Earth Sciences, Leipzig Institute for Meteorology, Leipzig University, 04103, Leipzig, Germany. poehlker@tropos.de.; Atmospheric Microphysics Department, Leibniz Institute for Tropospheric Research, 04318, Leipzig, Germany. poehlker@tropos.de., Pöhlker C; Multiphase Chemistry Department, Max Planck Institute for Chemistry, 55128, Mainz, Germany., Quaas J; Faculty of Physics and Earth Sciences, Leipzig Institute for Meteorology, Leipzig University, 04103, Leipzig, Germany., Mülmenstädt J; Faculty of Physics and Earth Sciences, Leipzig Institute for Meteorology, Leipzig University, 04103, Leipzig, Germany.; Pacific Northwest National Laboratory, Richland, WA, 99354, USA., Pozzer A; Atmospheric Chemistry Department, Max Planck Institute for Chemistry, 55128, Mainz, Germany.; Climate and Atmosphere Research Center, The Cyprus Institute, 2121, Nicosia, Cyprus., Andreae MO; Biogeochemistry Department, Max Planck Institute for Chemistry, 55128, Mainz, Germany.; Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, 92037, USA., Artaxo P; Instituto de Física, Universidade de São Paulo, São Paulo, Brazil., Block K; Faculty of Physics and Earth Sciences, Leipzig Institute for Meteorology, Leipzig University, 04103, Leipzig, Germany., Coe H; Department of Earth and Environmental Sciences, School of Natural Sciences, University of Manchester, Manchester, UK., Ervens B; Université Clermont Auvergne, CNRS, Institut de Chimie de Clermont-Ferrand, 63000, Clermont-Ferrand, France., Gallimore P; Department of Earth and Environmental Sciences, School of Natural Sciences, University of Manchester, Manchester, UK., Gaston CJ; Department of Atmospheric Sciences, Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL, 33149-1031, USA., Gunthe SS; Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Madras, Chennai, India.; Center for Atmospheric and Climate Sciences, Indian Institute of Technology Madras, Chennai, India., Henning S; Atmospheric Microphysics Department, Leibniz Institute for Tropospheric Research, 04318, Leipzig, Germany., Herrmann H; Atmospheric Chemistry Department, Leibniz-Institute for Tropospheric Research, 04318, Leipzig, Germany., Krüger OO; Multiphase Chemistry Department, Max Planck Institute for Chemistry, 55128, Mainz, Germany., McFiggans G; Department of Earth and Environmental Sciences, School of Natural Sciences, University of Manchester, Manchester, UK., Poulain L; Atmospheric Chemistry Department, Leibniz-Institute for Tropospheric Research, 04318, Leipzig, Germany., Raj SS; Multiphase Chemistry Department, Max Planck Institute for Chemistry, 55128, Mainz, Germany.; Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Madras, Chennai, India., Reyes-Villegas E; Department of Earth and Environmental Sciences, School of Natural Sciences, University of Manchester, Manchester, UK.; School of Engineering and Sciences, Tecnologico de Monterrey, Guadalajara, 45201, Mexico., Royer HM; Department of Atmospheric Sciences, Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL, 33149-1031, USA., Walter D; Multiphase Chemistry Department, Max Planck Institute for Chemistry, 55128, Mainz, Germany.; Climate Geochemistry Department, Max Planck Institute for Chemistry, 55128, Mainz, Germany., Wang Y; Atmospheric Microphysics Department, Leibniz Institute for Tropospheric Research, 04318, Leipzig, Germany.; Collaborative Innovation Center for Western Ecological Safety, Lanzhou University, 730000, Lanzhou, China., Pöschl U; Multiphase Chemistry Department, Max Planck Institute for Chemistry, 55128, Mainz, Germany.
Jazyk: angličtina
Zdroj: Nature communications [Nat Commun] 2023 Oct 02; Vol. 14 (1), pp. 6139. Date of Electronic Publication: 2023 Oct 02.
DOI: 10.1038/s41467-023-41695-8
Abstrakt: The climate effects of atmospheric aerosol particles serving as cloud condensation nuclei (CCN) depend on chemical composition and hygroscopicity, which are highly variable on spatial and temporal scales. Here we present global CCN measurements, covering diverse environments from pristine to highly polluted conditions. We show that the effective aerosol hygroscopicity, κ, can be derived accurately from the fine aerosol mass fractions of organic particulate matter (ϵ org ) and inorganic ions (ϵ inorg ) through a linear combination, κ = ϵ org  ⋅ κ org  + ϵ inorg  ⋅ κ inorg . In spite of the chemical complexity of organic matter, its hygroscopicity is well captured and represented by a global average value of κ org  = 0.12 ± 0.02 with κ inorg  = 0.63 ± 0.01 as the corresponding value for inorganic ions. By showing that the sensitivity of global climate forcing to changes in κ org and κ inorg is small, we constrain a critically important aspect of global climate modelling.
(© 2023. Springer Nature Limited.)
Databáze: MEDLINE
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