Articles | Volume 14, issue 1
Geosci. Model Dev., 14, 473–493, 2021
https://doi.org/10.5194/gmd-14-473-2021
Geosci. Model Dev., 14, 473–493, 2021
https://doi.org/10.5194/gmd-14-473-2021

Development and technical paper 25 Jan 2021

Development and technical paper | 25 Jan 2021

Improving dust simulations in WRF-Chem v4.1.3 coupled with the GOCART aerosol module

Alexander Ukhov et al.

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Cited articles

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We discuss and evaluate the effects of inconsistencies found in the WRF-Chem code when using the GOCART module. First, PM surface concentrations were miscalculated. Second, dust optical depth was underestimated by 25 %–30 %. Third, an inconsistency in the process of gravitational settling led to the overestimation of dust column loadings by 4 %–6 %, PM10 by 2 %–4 %, and the rate of gravitational dust settling by 5 %–10 %. We also presented diagnostics that can be used to estimate these effects.