Articles | Volume 24, issue 16
https://doi.org/10.5194/acp-24-9339-2024
© Author(s) 2024. 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-24-9339-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
27 Aug 2024
Research article |
| 27 Aug 2024
| 27 Aug 2024
Observed and CMIP6-model-simulated organic aerosol response to drought in the contiguous United States during summertime
Department of Earth and Atmospheric Sciences, University of Houston, Houston, TX, USA
now at: Cooperative Institute for Satellite Earth System Studies, George Mason University, Fairfax, VA, USA
Department of Earth and Atmospheric Sciences, University of Houston, Houston, TX, USA
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Short summary
Droughts immensely increased organic aerosol (OA) in the contiguous United States in summer (1998–2019), notably in the Pacific Northwest (PNW) and Southeast (SEUS). The OA rise in the SEUS is driven by the enhanced formation of epoxydiol-derived secondary organic aerosol due to the increase in biogenic volatile organic compounds and sulfate, while in the PNW, it is caused by wildfires. A total of 10 climate models captured the OA increase in the PNW yet greatly underestimated it in the SEUS.
Droughts immensely increased organic aerosol (OA) in the contiguous United States in summer...
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