Articles | Volume 13, issue 6
Geosci. Model Dev., 13, 2879–2903, 2020
Geosci. Model Dev., 13, 2879–2903, 2020
Development and technical paper
30 Jun 2020
Development and technical paper | 30 Jun 2020

Further improvement of wet process treatments in GEOS-Chem v12.6.0: impact on global distributions of aerosols and aerosol precursors

Gan Luo et al.

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Short summary
This work improved pH calculation for cloud, rain, and wet surfaces, fraction of cloud available for aqueous-phase chemistry, rainout efficiencies for various types of cloud, empirical washout by rain and snow, and wet surface uptake in GEOS-Chem v12.6.0. We compared simulated mass concentrations of aerosol precursors and aerosols with surface monitoring networks, Arctic sites, and ATom observations, and showed that the model results with the updated wet processes agree better for most species.