Articles | Volume 25, issue 17
https://doi.org/10.5194/acp-25-9583-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-25-9583-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
01 Sep 2025
Research article |
| 01 Sep 2025
| 01 Sep 2025
Impact of topographic wind conditions on dust particle size distribution: insights from a regional dust reanalysis dataset
Xinyue Huang
Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, VA 24060, USA
Wenyu Gao
Department of Mathematics and Statistics, University of North Carolina at Charlotte, Charlotte, NC 28223, USA
Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, VA 24060, USA
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Geosci. Model Dev., 17, 7855–7866, https://doi.org/10.5194/gmd-17-7855-2024, https://doi.org/10.5194/gmd-17-7855-2024, 2024
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This work describe how we linked the meteorological Model for Prediction Across Scales – Atmosphere (MPAS-A) with the Community Multiscale Air Quality (CMAQ) air quality model to form a coupled modelling system. This could be used to study air quality or climate and air quality interaction at a global scale. This new model scales well in high-performance computing environments and performs well with respect to ground surface networks in terms of ozone and PM2.5.
Charbel Harb and Hosein Foroutan
Atmos. Chem. Phys., 22, 11759–11779, https://doi.org/10.5194/acp-22-11759-2022, https://doi.org/10.5194/acp-22-11759-2022, 2022
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A model representation of lake spray aerosol (LSA) ejection from freshwater breaking waves is crucial for understanding their climatic and public health impacts. We develop an LSA emission parameterization and implement it in an atmospheric model to investigate Great Lakes surface emissions. We find that the same breaking wave is likely to produce fewer aerosols in freshwater than in saltwater and that Great Lakes emissions influence the regional aerosol burden and can reach the cloud layer.
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Short summary
This study investigates the relationship between the size of windblown dust aerosols and wind conditions over topography at a regional scale, utilizing 10 years of dust reanalysis data. Linear regression and machine learning models suggest that greater wind speeds and land slopes, particularly under uphill winds, are associated with increased fractions of coarser dust. Moreover, these positive correlations weaken during summer and afternoon events, probably related to the haboob storms.
This study investigates the relationship between the size of windblown dust aerosols and wind...
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