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Water 2018, 10(10), 1297; https://doi.org/10.3390/w10101297

A Regional-Scale Landslide Warning System Based on 20 Years of Operational Experience

1
Department of Earth Sciences, University of Florence, 50121 Florence, Italy
2
Emilia Romagna Agency for Territorial Safety and Civil Protection, 40122 Bologna, Italy
*
Author to whom correspondence should be addressed.
Received: 31 July 2018 / Revised: 12 September 2018 / Accepted: 18 September 2018 / Published: 21 September 2018
(This article belongs to the Special Issue Landslide Hydrology)
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Abstract

SIGMA is a regional landslide warning system based on statistical rainfall thresholds that operates in Emilia Romagna (Italy). In this work, we depict its birth and the continuous development process, still ongoing, after two decades of operational employ. Indeed, a constant work was carried out to gather and incorporate in the modeling new data (extended rainfall recordings, updated landslides inventories, temperature and soil moisture data). The use of these data allowed for regular updates of the model and some conceptual improvements, which consistently increased the forecasting effectiveness of the warning system through time. Landslide forecasting at regional scale is a very complex task, but this paper shows that, as time passes by, the systematic gathering and analysis of new data and the continuous progresses of research activity, uncertainties can be progressively reduced. Thus, by the setting up of forward-looking research programs, the performances and the reliability of regional scale warning systems can be increased with time. View Full-Text
Keywords: rainfall threshold; landslide; hazard; warning system; Emilia Romagna; Civil Protection rainfall threshold; landslide; hazard; warning system; Emilia Romagna; Civil Protection
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Segoni, S.; Rosi, A.; Fanti, R.; Gallucci, A.; Monni, A.; Casagli, N. A Regional-Scale Landslide Warning System Based on 20 Years of Operational Experience. Water 2018, 10, 1297.

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