Natural Hazards and Earth System Sciences
Natural Hazards and Earth System Sciences
NHESS
Articles | Volume 26, issue 2
Articles | Volume 26, issue 2
https://doi.org/10.5194/nhess-26-901-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-26-901-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 2
Research article
 | 
24 Feb 2026
Research article |  | 24 Feb 2026

Atmospheric Rivers as Triggers of Compound Flooding: quantifying Extreme Joint Events in Western North America Under Climate Change

Andrew Vincent Grgas-Svirac, Mohammad Fereshtehpour, M. Reza Najafi, Alex J. Cannon, and Hamidreza Shirkhani

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Short summary
This study explores how long, narrow bands of moist air known as atmospheric rivers increase the risk of inland flooding when combined with other factors. Using climate models, we found that these events are already important drivers of flooding in western North America and will likely become even more intense with climate change. Natural climate shifts also affect how often these events occur. The findings help inform future decisions about flood planning and protection.
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