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Showing 1–9 of 9 results
Advanced filters: Author: Nina Sarnela Clear advanced filters

  • Observations are reported of HClO3 and HClO4 in the atmosphere and their widespread occurrence over the pan-Arctic during spring, providing further insights into atmospheric chlorine cycling in the polar environment.

    • Yee Jun Tham
    • Nina Sarnela
    • Alfonso Saiz-Lopez
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-10

  • The growth rates of freshly formed aerosol particles influence what fraction of these can reach sizes large enough to affect cloud formation and climate. Here, the authors show that the nano-particle growth in a sulphuric acid containing system can be enhanced by the presence of ions or small acid-base clusters.

    • Katrianne Lehtipalo
    • Linda Rondo
    • Markku Kulmala
    ResearchOpen Access
    Nature Communications
    Volume: 7, P: 1-9

  • Forests emit compounds into the atmosphere that are oxidized into highly oxygenated molecules that serve as precursors for cloud condensation nuclei–a process that impacts the climate, but is poorly represented in models. Here the authors create a new model that accurately depicts highly oxygenated molecule and climate dynamics over Boreal forests.

    • Pontus Roldin
    • Mikael Ehn
    • Michael Boy
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-15

  • The growth of nucleated organic particles has been investigated in controlled laboratory experiments under atmospheric conditions; initial growth is driven by organic vapours of extremely low volatility, and accelerated by more abundant vapours of slightly higher volatility, leading to markedly different modelled concentrations of atmospheric cloud condensation nuclei when this growth mechanism is taken into account.

    • Jasmin Tröstl
    • Wayne K. Chuang
    • Urs Baltensperger
    ResearchOpen Access
    Nature
    Volume: 533, P: 527-531

  • Aerosol particles can form in the atmosphere by nucleation of highly oxidized biogenic vapours in the absence of sulfuric acid, with ions from Galactic cosmic rays increasing the nucleation rate by one to two orders of magnitude compared with neutral nucleation.

    • Jasper Kirkby
    • Jonathan Duplissy
    • Joachim Curtius
    ResearchOpen Access
    Nature
    Volume: 533, P: 521-526