Articles | Volume 22, issue 12
https://doi.org/10.5194/acp-22-7843-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/acp-22-7843-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
17 Jun 2022
Research article |
| 17 Jun 2022
| 17 Jun 2022
Reduced surface fine dust under droughts over the southeastern United States during summertime: observations and CMIP6 model simulations
Department of Earth and Atmospheric Sciences, University of Houston,
Houston, Texas, USA
Department of Earth and Atmospheric Sciences, University of Houston,
Houston, Texas, USA
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Short summary
Fine dust is an important component of PM2.5 and can be largely modulated by droughts. In contrast to the increase in dust in the southwest USA where major dust sources are located, dust in the southeast USA is affected more by long-range transport from Africa and decreases under droughts. Both the transport and emissions of African dust are weakened when the southeast USA is under droughts, which reveals how regional-scale droughts can influence aerosol abundance through long-range transport.
Fine dust is an important component of PM2.5 and can be largely modulated by droughts. In...
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