Theme: Hazard

Landslide susceptibility models and maps

LAMPRE leaflet Landslide susceptibility is the likelihood of a landslide occurring in an area, given the local terrain conditions. It is the degree to which an area can be affected by future landslides i.e., an estimate of “where” landslides are more likely to occur.Landslide susceptibility does not consider the temporal occurrence or the magnitude of the expected landslides. In mathematical language, landslide susceptibility can be expressed as the ...

Documentation and analysis of flash floods

focus-Documentazione_analisi_piene_improvvise_01-evidenza-2 Flash floods occur in small to medium size river basins, and are characterised by fast temporal evolution. Because of their intensity and short warning times, flash floods often cause not only major economic damage, but also loss of lives.An integrated approach to documentation and analysis of flash floods has to include the following issues:post-flood observations aimed at estimating peak discharge and reconstructing temporal ...

We monitor the Planpincieux Glacier, along the Italian side of the Grandes Jorasses, Aosta Valley

focus-planpincieux-evidenza-2 Glaciers are typical of the Alpine landscape, and an important source of water. Undoubtedly fascinating, glaciers are very complex and yet surprisingly poorly known. In the Alps, many studies focus on the volumetric changes of glaciers, proving their almost systematic reduction in the current climatic period. Little is known about the daily behaviour of Alpine glaciers. This is partly due to the inhospitable and not easily accessible ...

Large landslides: Monitoring, Modelling and Mitigation

evindenza-grandi-frane-mortisa- The study of the dynamics of large landslide is a heuristic process based on the integration of multiple investigation techniques: geological and geomorphological analysis, monitoring systems (traditional and innovative) and numerical models. Risk mitigation may require major interventions that call for detailed studies on the specific ...

Flood forecasting and flood risk assessment

evidenza-floris The project is focused on flood forecasting and hydraulic risk, i.e. the assessment of the effects of flooding in flood-prone areas also involving the vulnerability assessment of the hydraulic structures (dams, leaves, bridges, ...

Active alluvial fans in Calabria, Southern Italy

Conoide attiva presente allo sbocco del torrente Inerà sul fondovalle della Fiumara di Melito (Calabria ionica meridionale). Ortofoto, maggio 2013. Alluvial fans are known to be areas of high geomorphic activity, where debris flows and flash floods caused by intense and prolonged rainfall are a major hazard. In Calabria, southern Italy, alluvial fans are numerous. The exact age of the alluvial fans is seldom known, but most of the fans in Calabria are considered recent in age (Holocene).Due to the significant increase in urbanization in the last two centuries, many alluvial fans are ...

Hazard of alluvial fans

project-pericolosità-conoidi-evidenza In international literature, it is now widely recognized that alluvial fans are areas of high geomorphic activity. Debris flows and flash floods occur episodically in these environments, and place many communities at high risk. Calabria (southern Italy) is a region where alluvial fans widely occur. In this region, the presence of mountain fronts/alluvial and/or coastal plain, or deep and narrow valleys debouching into larger valleys are key ...

Where we should not expect landslides?

nonsusc_valcmonica_20150726_3D_IN_EVIDENZA-3 Landslide susceptibility is the propensity of a territory to generate landslides.Many methods are available to determine landslide susceptibility, whereas only a few attempts were made to outline areas not likely to generate landslides i.e., non-susceptible landslide areas. This is surprising, because for planning purposes it is just as important (if not more important) to know where landslides are not expected than to know where landslides ...

Methodologies for the analysis of alluvial fans

progetti-conoidi-veneto-evidenza Some areas mapped in the Piani di Assetto Idrogeologico (Watershed Management Plan) of Piave, Brenta-Bacchiglione and Livenza Rivers require specific studies aimed at assigning a degree of hazard. Among the warning areas, there are numerous alluvial fans. The Soil Conservation Division of Veneto Region, in charge of the inquiry, identified the need to find an objective method for assessing the hazard of such ...

Mappatura, Modellazione e Previsione Multiscala dei RIschi GEo-idroLogici

progetti-m3rigel-evidenza- Italy has a tradition of scientific research and technological development on hazardous natural phenomena in general, and specifically on geo-hydrological hazards. Within the CNR, the “Progetti Finalizzati”  Soil Conservation and Geodynamics (in the ’70s and ’80s), and GNDCI – the National Group for the Defence from Hydrogeological Disasters (in the ’80s and ’90s), have contributed to the advancement of knowledge ...