Natural Hazards and Earth System Sciences
Natural Hazards and Earth System Sciences
NHESS
Articles | Volume 26, issue 7
Articles | Volume 26, issue 7
https://doi.org/10.5194/nhess-26-3163-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-26-3163-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 7
Research article
 | 
09 Jul 2026
Research article |  | 09 Jul 2026

Usage of normalized soil moisture for improving the performance of rainfall thresholds along transportation corridors

Leila Rahimikhameneh, Abraham Alvarez Reyna, Jack Montgomery, and Frances O'Donnell

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Short summary
Landslides along highways pose safety risks and disrupt travel. Many warning systems use rainfall data, but this alone may miss key factors. Using satellite-derived soil moisture, precipitation records, and landslide observations from Alabama, we found that wetter-than-average soil conditions increase landslide risk. We developed a framework that combines rainfall and soil moisture to improve prediction and reduce false alarms.
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