Articles | Volume 25, issue 21
https://doi.org/10.5194/acp-25-15507-2025
© 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-25-15507-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
13 Nov 2025
Research article |
| 13 Nov 2025
| 13 Nov 2025
Modeling on the drought stress impact on the summertime biogenic isoprene emissions in South Korea
Yong-Cheol Jeong
Department of Earth and Atmospheric Sciences, University of Houston, Houston, TX, USA
Department of Earth and Atmospheric Sciences, University of Houston, Houston, TX, USA
Department of Earth and Atmospheric Sciences, University of Houston, Houston, TX, USA
now at: National Oceanic and Atmospheric Administration (NOAA) Air Resource Laboratory, College Park, MD, USA
Hyeonmin Kim
School of Earth and Environmental Sciences, Seoul National University, Seoul, South Korea
Rokjin J. Park
School of Earth and Environmental Sciences, Seoul National University, Seoul, South Korea
Mahmoudreza Momeni
Department of Earth and Atmospheric Sciences, University of Houston, Houston, TX, USA
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This preprint is open for discussion and under review for Atmospheric Chemistry and Physics (ACP).
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Wei Li and Yuxuan Wang
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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.
Dianne Sanchez, Roger Seco, Dasa Gu, Alex Guenther, John Mak, Youngjae Lee, Danbi Kim, Joonyoung Ahn, Don Blake, Scott Herndon, Daun Jeong, John T. Sullivan, Thomas Mcgee, Rokjin Park, and Saewung Kim
Atmos. Chem. Phys., 21, 6331–6345, https://doi.org/10.5194/acp-21-6331-2021, https://doi.org/10.5194/acp-21-6331-2021, 2021
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We present observations of total reactive gases in a suburban forest observatory in the Seoul metropolitan area. The quantitative comparison with speciated trace gas observations illustrated significant underestimation in atmospheric reactivity from the speciated trace gas observational dataset. We present scientific discussion about potential causes.
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Short summary
Isoprene, which is emitted from the vegetation, is important to regional air quality. Drought is one of the most important meteorological events that can modulate isoprene emissions by high temperature and low soil moisture. The drought stress impact on isoprene emissions is still uncertain, and we aimed to constrain it in South Korea using observation and model simulation. The results presented in this study may give useful information for future studies on drought stress on isoprene emissions.
Isoprene, which is emitted from the vegetation, is important to regional air quality. Drought is...
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