Articles | Volume 26, issue 3
https://doi.org/10.5194/nhess-26-1397-2026
https://doi.org/10.5194/nhess-26-1397-2026
Research article
 | 
18 Mar 2026
Research article |  | 18 Mar 2026

The role of El Niño Southern Oscillation in driving coastal hazards in the U.S. Pacific Northwest

Meredith Leung, Peter Ruggiero, Laura Cagigal, Dylan Anderson, and Fernando Mendez

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Cited articles

Allan, J. and Komar, P.: Extreme Storms on the Pacific Northwest Coast during the 1997–1998 El Nino and 1998–1999 La Nina, J. Coast. Res., 18, 175–193, 2002. 
Allan, J., Ruggiero, P., García Medina, G., Harris, E., Roberts, J., and Stimely, L.: Coastal flood hazard study, Clatsop County, Oregon, Oregon Department of Geology and Mineral Industries (DOGAMI), https://doi.org/10.13140/RG.2.1.1656.5608, 2015. 
Almar, R., Boucharel, J., Graffin, M., Abessolo, G. O., Thoumyre, G., Papa, F., Ranasinghe, R., Montano, J., Bergsma, E. W. J., Baba, M. W., and Jin, F.-F.: Influence of El Niño on the variability of global shoreline position, Nat. Commun., 14, 3133, https://doi.org/10.1038/s41467-023-38742-9, 2023. 
Anderson, D., Ruggiero, P., Antolínez, J. A. A., Méndez, F. J., and Allan, J.: A Climate Index Optimized for Longshore Sediment Transport Reveals Interannual and Multidecadal Littoral Cell Rotations, J. Geophys. Res.-Earth Surf., 123, 1958–1981, https://doi.org/10.1029/2018jf004689, 2018. 
Anderson, D., Rueda, A., Cagigal, L., Antolinez, J. A. A., Mendez, F. J., and Ruggiero, P.: Time-Varying Emulator for Short and Long-Term Analysis of Coastal Flood Hazard Potential, J. Geophys. Res.-Oceans, 124, 9209–9234, https://doi.org/10.1029/2019jc015312, 2019. 
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Short summary
This paper investigates the relationship between El Niño Southern Oscillation (ENSO) and coastal hazard risk in the U.S. Pacific Northwest (PNW) using probabilistic simulations of climate patterns, weather patterns, and coastal hazard drivers. Results indicate there is a weaker relationship between ENSO and PNW coastal hazard risk than suggested by observations. These findings advance understanding of ENSO dynamics and support climate-informed hazard management.
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