The recent catastrophes occurred in Italy have raised the concern about the delicate equilibrium ... more The recent catastrophes occurred in Italy have raised the concern about the delicate equilibrium between human settlements and natural hazards. Numerous laws and regional directives have been put in place in order to establish new rules for future urbanization, especially in mountain areas. Here numerous are the hazards threatening the territory: snow avalanches, rockfall, landslides, debris flow, floods. The objective
GEOTOP is a distributed model of the hydrological cycle. It has been implemented as a first step ... more GEOTOP is a distributed model of the hydrological cycle. It has been implemented as a first step towards a real-time distributed model of the hydrological cycle for small catchments. It solves the energy and mass balance jointly, also accounts for the evolution of the snow mantle and offers many solutions for describing the coupling between terrain, vegetation and the atmosphere.
This talk describes a coupled, distributed, hydrological-geotecnichal model, GEOtop-SF, which yie... more This talk describes a coupled, distributed, hydrological-geotecnichal model, GEOtop-SF, which yields the probability of the triggering of shallow landslides and debris flows. We use a hydrological distributed model, GEOtop, which, besides other fluxes and surface runoff, computes soil moisture in 3-D by numerically solving Richards'equation, and an infinite-slope geotechnical model, GEOtop-SF. The combined model allows both the hydraulic and geotechnical properties of soil to be considered and realistically modelled. In particular, the model has been conceived to make direct use of field surveys, of geotechnical characteristics and soil moisture measurements. In the model the depth of available sediments is also used to characterise the hydraulic properties of the area examined. To account for the uncertainty related to the natural variability in the factors influencing the stability of natural slopes, the safety factor is computed with a probabilistic approach, in order to determine the likelihood of slope failures, assigning to soil parameters distributions instead of single deterministic values. A discussion of the role of subsurface fluxes and pressure is presented. Examples from Alpine watersheds in Italy, for which some geological and geotechnical data were available are presented.
Here a snow accumulation and melt module implemented in the GEOTOP model is presented and tested.... more Here a snow accumulation and melt module implemented in the GEOTOP model is presented and tested. GEOTOP is a distributed model of the hydrological cycle, based on digital elevation models (DEMs), which calculates the discharge at the basin outlet and estimates the local and distributed values of several hydro-meteorological quantities. It solves the energy and the mass balance jointly and
The recent catastrophes occurred in Italy have raised the concern about the delicate equilibrium ... more The recent catastrophes occurred in Italy have raised the concern about the delicate equilibrium between human settlements and natural hazards. Numerous laws and regional directives have been put in place in order to establish new rules for future urbanization, especially in mountain areas. Here numerous are the hazards threatening the territory: snow avalanches, rockfall, landslides, debris flow, floods. The objective
This talk describes a coupled, distributed, hydrological-geotecnichal model, GEOtop-SF, which yie... more This talk describes a coupled, distributed, hydrological-geotecnichal model, GEOtop-SF, which yields the probability of the triggering of shallow landslides and debris flows. We use a hydrological distributed model, GEOtop, which, besides other fluxes and surface runoff, computes soil moisture in 3-D by numerically solving Richards'equation, and an infinite-slope geotechnical model, GEOtop-SF. The combined model allows both the hydraulic and geotechnical properties of soil to be considered and realistically modelled. In particular, the model has been conceived to make direct use of field surveys, of geotechnical characteristics and soil moisture measurements. In the model the depth of available sediments is also used to characterise the hydraulic properties of the area examined. To account for the uncertainty related to the natural variability in the factors influencing the stability of natural slopes, the safety factor is computed with a probabilistic approach, in order to determine the likelihood of slope failures, assigning to soil parameters distributions instead of single deterministic values. A discussion of the role of subsurface fluxes and pressure is presented. Examples from Alpine watersheds in Italy, for which some geological and geotechnical data were available are presented.
GEOTOP is a distributed model of the hydrological cycle. It has been implemented as a first step ... more GEOTOP is a distributed model of the hydrological cycle. It has been implemented as a first step towards a real-time distributed model of the hydrological cycle for small catchments. It solves the energy and mass balance jointly, also accounts for the evolution of the snow mantle and offers many solutions for describing the coupling between terrain, vegetation and the atmosphere.
This paper describes a coupled, distributed, hydrological-geotechnical model, GEOtop-FS, which si... more This paper describes a coupled, distributed, hydrological-geotechnical model, GEOtop-FS, which simulates the probability of occurrence of shallow landslides and debris flows. We use a hydrological distributed model, GEOtop, which, models latent and sensible heat fluxes and surface ...
The recent catastrophes occurred in Italy have raised the concern about the delicate equilibrium ... more The recent catastrophes occurred in Italy have raised the concern about the delicate equilibrium between human settlements and natural hazards. Numerous laws and regional directives have been put in place in order to establish new rules for future urbanization, especially in mountain areas. Here numerous are the hazards threatening the territory: snow avalanches, rockfall, landslides, debris flow, floods. The objective
GEOTOP is a distributed model of the hydrological cycle. It has been implemented as a first step ... more GEOTOP is a distributed model of the hydrological cycle. It has been implemented as a first step towards a real-time distributed model of the hydrological cycle for small catchments. It solves the energy and mass balance jointly, also accounts for the evolution of the snow mantle and offers many solutions for describing the coupling between terrain, vegetation and the atmosphere.
This talk describes a coupled, distributed, hydrological-geotecnichal model, GEOtop-SF, which yie... more This talk describes a coupled, distributed, hydrological-geotecnichal model, GEOtop-SF, which yields the probability of the triggering of shallow landslides and debris flows. We use a hydrological distributed model, GEOtop, which, besides other fluxes and surface runoff, computes soil moisture in 3-D by numerically solving Richards'equation, and an infinite-slope geotechnical model, GEOtop-SF. The combined model allows both the hydraulic and geotechnical properties of soil to be considered and realistically modelled. In particular, the model has been conceived to make direct use of field surveys, of geotechnical characteristics and soil moisture measurements. In the model the depth of available sediments is also used to characterise the hydraulic properties of the area examined. To account for the uncertainty related to the natural variability in the factors influencing the stability of natural slopes, the safety factor is computed with a probabilistic approach, in order to determine the likelihood of slope failures, assigning to soil parameters distributions instead of single deterministic values. A discussion of the role of subsurface fluxes and pressure is presented. Examples from Alpine watersheds in Italy, for which some geological and geotechnical data were available are presented.
Here a snow accumulation and melt module implemented in the GEOTOP model is presented and tested.... more Here a snow accumulation and melt module implemented in the GEOTOP model is presented and tested. GEOTOP is a distributed model of the hydrological cycle, based on digital elevation models (DEMs), which calculates the discharge at the basin outlet and estimates the local and distributed values of several hydro-meteorological quantities. It solves the energy and the mass balance jointly and
The recent catastrophes occurred in Italy have raised the concern about the delicate equilibrium ... more The recent catastrophes occurred in Italy have raised the concern about the delicate equilibrium between human settlements and natural hazards. Numerous laws and regional directives have been put in place in order to establish new rules for future urbanization, especially in mountain areas. Here numerous are the hazards threatening the territory: snow avalanches, rockfall, landslides, debris flow, floods. The objective
This talk describes a coupled, distributed, hydrological-geotecnichal model, GEOtop-SF, which yie... more This talk describes a coupled, distributed, hydrological-geotecnichal model, GEOtop-SF, which yields the probability of the triggering of shallow landslides and debris flows. We use a hydrological distributed model, GEOtop, which, besides other fluxes and surface runoff, computes soil moisture in 3-D by numerically solving Richards'equation, and an infinite-slope geotechnical model, GEOtop-SF. The combined model allows both the hydraulic and geotechnical properties of soil to be considered and realistically modelled. In particular, the model has been conceived to make direct use of field surveys, of geotechnical characteristics and soil moisture measurements. In the model the depth of available sediments is also used to characterise the hydraulic properties of the area examined. To account for the uncertainty related to the natural variability in the factors influencing the stability of natural slopes, the safety factor is computed with a probabilistic approach, in order to determine the likelihood of slope failures, assigning to soil parameters distributions instead of single deterministic values. A discussion of the role of subsurface fluxes and pressure is presented. Examples from Alpine watersheds in Italy, for which some geological and geotechnical data were available are presented.
GEOTOP is a distributed model of the hydrological cycle. It has been implemented as a first step ... more GEOTOP is a distributed model of the hydrological cycle. It has been implemented as a first step towards a real-time distributed model of the hydrological cycle for small catchments. It solves the energy and mass balance jointly, also accounts for the evolution of the snow mantle and offers many solutions for describing the coupling between terrain, vegetation and the atmosphere.
This paper describes a coupled, distributed, hydrological-geotechnical model, GEOtop-FS, which si... more This paper describes a coupled, distributed, hydrological-geotechnical model, GEOtop-FS, which simulates the probability of occurrence of shallow landslides and debris flows. We use a hydrological distributed model, GEOtop, which, models latent and sensible heat fluxes and surface ...
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