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Using local monitoring data for regional forecasting of weather-induced landslides in Norway

Pecoraro, Gaetano; Calvello, Michele; Cepeda, Jose
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Pecoraro_Calvello_Cepeda%282019%29ECSMGE.pdf (674.0Kb)
URI
http://hdl.handle.net/11250/2628697
Date
2019
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  • NGI articles [1175]
Original version
In Proceedings of the XVII ECSMGE-2019. Geotechnical Engineering foundation of the future. Icelandic Geotechnical Society. doi:10.32075/17ECSMGE-2019-0141  
Abstract
Since 2013, a national early warning system addressing weather-induced landslides in soils is operational in Norway. The system is based on real-time hydro-meteorological measurements used as input to a spatially distributed precipitation-runoff model covering the whole country with 1 km by 1 km grid. The warning thresholds are defined considering relative water supply and relative groundwater conditions. This study presents a methodology aiming at integrating the adopted warning model with monitoring data collected at local scale, specifically pore water pressure measurements. Preliminary analyses of the temporal and spatial distribution of the landslide events in relation to the modelled territorial data and the local monitoring data are conducted within a test area, highlighting the additional contribution of local measurements for early warning purposes. The results of the research may be considered as a first attempt to integrate regional and local monitoring data within a warning model for landslides.
 
Using local monitoring data for regional forecasting of weather-induced landslides in Norway
 

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