Articles | Volume 15, issue 4
Nat. Hazards Earth Syst. Sci., 15, 853–861, 2015
https://doi.org/10.5194/nhess-15-853-2015

Special issue: Landslide Prediction & Forecasting

Nat. Hazards Earth Syst. Sci., 15, 853–861, 2015
https://doi.org/10.5194/nhess-15-853-2015

Research article 16 Apr 2015

Research article | 16 Apr 2015

Technical Note: An operational landslide early warning system at regional scale based on space–time-variable rainfall thresholds

S. Segoni et al.

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Short summary
We monitor and forecast (with lead times up to 48h) regional-scale landslide hazard with an early warning system (EWS) implemented on a user-friendly WebGIS interface. The EWS detects the most critical rainfall conditions using a mosaic of 25 site-specific thresholds. Moreover, when the rainfall paths recorded by the instruments are compared with the thresholds, the thresholds are shifted in the time axis and adjusted to all possible starting times until the most hazardous scenario is found.
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