Articles | Volume 21, issue 6
Atmos. Chem. Phys., 21, 4319–4337, 2021
https://doi.org/10.5194/acp-21-4319-2021
Atmos. Chem. Phys., 21, 4319–4337, 2021
https://doi.org/10.5194/acp-21-4319-2021

Research article 22 Mar 2021

Research article | 22 Mar 2021

A revised mineral dust emission scheme in GEOS-Chem: improvements in dust simulations over China

Rong Tian et al.

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Latest update: 06 Dec 2021
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Short summary
We improve the treatment of the dust emission process in GEOS-Chem by considering the effect of geographical variation of aerodynamic roughness length, smooth roughness length and soil texture, as well as the Owen effect and a more physically based formulation of sandblasting efficiency, which improve estimated threshold friction velocity and dust concentrations over China. Our study highlights the importance of incorporation of realistic land-surface properties into the dust emission scheme.
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