Articles | Volume 23, issue 9
https://doi.org/10.5194/acp-23-5435-2023
© Author(s) 2023. 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-23-5435-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
16 May 2023
Research article |
| 16 May 2023
| 16 May 2023
Understanding day–night differences in dust aerosols over the dust belt of North Africa, the Middle East, and Asia
Department of Geography and Atmospheric Science, University of Kansas, Lawrence, KS, USA
now at: Department of Meteorology and Atmospheric Science,
Pennsylvania State University, State College, PA, USA
Qinjian Jin
Department of Geography and Atmospheric Science, University of Kansas, Lawrence, KS, USA
Department of Geography and Atmospheric Science, University of Kansas, Lawrence, KS, USA
Related authors
No articles found.
Yiting Wang, Yan Yu, Ji Nie, and Bing Pu
EGUsphere, https://doi.org/10.5194/egusphere-2025-4589, https://doi.org/10.5194/egusphere-2025-4589, 2025
This preprint is open for discussion and under review for Atmospheric Chemistry and Physics (ACP).
Short summary
Short summary
Dust activity in East Asia and North America shows decadal variations, affecting radiation, air quality, and human health, especially in April and May. This study examines interannual and decadal changes in springtime dust emissions and quantifies the role of environmental factors and extratropical cyclones. Using multi-source datasets, a dust emission model, and cyclone tracking algorithms, we find that strong winds, particularly those linked to cyclones, are key drivers of these changes.
Brian Harr, Bing Pu, and Qinjian Jin
Atmos. Chem. Phys., 24, 8625–8651, https://doi.org/10.5194/acp-24-8625-2024, https://doi.org/10.5194/acp-24-8625-2024, 2024
Short summary
Short summary
We found that the formation of the extreme trans-Atlantic African dust event in June 2015 was associated with a brief surge in dust emissions over western North Africa and extreme circulation patterns, including intensified easterly jets, which facilitated the westward transport of dust. The dust plume modified radiative flux along its transport pathway but had minor impacts on air quality in the US due to the record-high Caribbean low-level jet advecting part of the plume to the Pacific.
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Short summary
We use the Infrared Atmospheric Sounder Interferometer (IASI) retrievals of dust variables (dust optical depth and dust layer height) and surface observations to understand the day- and nighttime variations in dust aerosols over the dust belt. Our results show that daytime dust aerosols are significantly different from nighttime, and such day–night variations are influenced by meteorological factors such as wind speed, precipitation, and turbulent motions within the atmospheric boundary layer.
We use the Infrared Atmospheric Sounder Interferometer (IASI) retrievals of dust variables (dust...
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