Articles | Volume 15, issue 4
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, A. Battistini, G. Rossi, A. Rosi, D. Lagomarsino, F. Catani, S. Moretti, and N. Casagli

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Cited articles

Aleotti, P.: A warning system for rainfall-induced shallow failures, Eng. Geol., 73, 247–265, 2004.
Baum, R. L. and Godt, J. W.: Early warning of rainfall-induced shallow landslides and debris flows in the USA, Landslides, 7, 259–272, 2010.
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Cacciamani, E. P., Ferri, M., and Minguzzi, E.: High resolution verification of hydrostatic and non-hydorstatic LAM precipitation forecasts in Italy, in: COSMO newsletter, edited by: Doms, G. and Shatter, U., Vol. II, Offenbach, Germany, 176–186, 2002.
Caine, N.: The rainfall intensity–duration control of shallow landslides and debris flows, Geogr. Ann., 62, 23–27, 1980.
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.
Final-revised paper