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Physical Modelling and Human Survival in Pyroclastic Flows

Baxter, P.; Neri, A.; Todesco, M. - In: Natural Hazards 17 (1998) 2, pp. 163-176

Volcanic eruptions increasingly present catastrophic natural risks with hundreds of millions of people now living in areas of active volcanism and major conurbations around active eruptive centres. Interdisciplinary studies in disaster reduction have an important role in volcanic emergency...

Persistent link: https://www.econbiz.de/10010846467

Volcanic hazards zonation of the Nevado de Toluca Volcano, Central Mexico

Quesada, José; Pozzo, Ana Lillian Martin Del; Blanco, … - In: Natural Hazards 41 (2007) 1, pp. 159-180

Nevado de Toluca Volcano (NTV), located in central Mexico, is a large stratovolcano, with an explosive history. The … and expansion have increased the potential risk in case of a reactivation of the volcano. As part of a study to assess …

Persistent link: https://www.econbiz.de/10010996629

Wind speed spatial estimation for energy planning in Sicily: A neural kriging application

Cellura, M.; Cirrincione, G.; Marvuglia, A.; Miraoui, A. - In: Renewable Energy 33 (2008) 6, pp. 1251-1266

One of the first steps for the exploitation of any energy source is necessarily represented by its estimation and mapping at the aim of identifying the most suitable areas in terms of energy potential. In the field of renewable energies this is often a very difficult task, because the energy...

Persistent link: https://www.econbiz.de/10010805358

Characterization and Evaluation of Elevation Data Uncertainty in Water Resources Modeling with GIS

Wu, Simon; Li, Jonathan; Huang, G. - In: Water Resources Management 22 (2008) 8, pp. 959-972

Grid based digital elevation models (DEM) are commonly used in water resources modeling. The quality of readily … available DEM, however, varies from source to source in terms of horizontal resolution and vertical accuracy which are the two … presenting DEM processing processes in distributed and semi-distributed hydrologic analyses. It is very difficult to examine the …

Persistent link: https://www.econbiz.de/10010794256

Estimation of Geomorphological Parameters of Lower Zab River-Basin by Using GIS-Based Remotely Sensed Image

Saeedrashed, Y.; Guven, A. - In: Water Resources Management 27 (2013) 1, pp. 209-219

The Lower Zab watershed is one of the most important catchment areas in the northern region of Iraq, as it includes large dam which is called Dukan Dam. Besides this, there are four other catchment areas, which are the Greater Zab (Upper Zab), Diyala, Khabur, and Uzem. During the last few...

Persistent link: https://www.econbiz.de/10010794426

GPS/terrestrial 3D laser scanner combined monitoring technology for coal mining subsidence: a case study of a coal mining area in Hebei, China

Zhou, Dawei; Wu, Kan; Chen, Ranli; Li, Liang - In: Natural Hazards 70 (2014) 2, pp. 1197-1208

. Ground surface digital elevation model (DEM) of the mining area is established by using TLS point cloud data, and the ground … DEM and subsidence basin can provide the fundamental data for the reconstruction of ecological environment in the mining …

Persistent link: https://www.econbiz.de/10010846749

Estimation of Soil Erosion and Sediment Yield Using GIS at Catchment Scale

Bhattarai, Rabin; Dutta, Dushmata - In: Water Resources Management 21 (2007) 10, pp. 1635-1647

catchment outlet is represented by the topographical characteristics of the cells. The effect of DEM resolution on sediment … yield is analyzed using two different resolutions of DEM. The spatial discretization of the catchment and derivation of the …

Persistent link: https://www.econbiz.de/10010847420

Discrete element modeling of the microstructure of fine particle agglomerates in sheared dilute suspension

Kimbonguila Manounou, A.; Rémond, S. - In: Physica A: Statistical Mechanics and its Applications 412 (2014) C, pp. 66-83

The fragmentation and restructuring under shear of agglomerates of fine mineral particles are studied with the Distinct Element Method. The model used takes into account contact forces, van der Waals forces, and hydrodynamic forces computed with the free-draining approximation. A loose initial...

Persistent link: https://www.econbiz.de/10010906979

DEM simulation of small particles clogging in the packing of large beads

Remond, S. - In: Physica A: Statistical Mechanics and its Applications 389 (2010) 21, pp. 4485-4496

The percolation of small particles through a periodic random loose packing of large beads is studied numerically with the Distinct Element Method. The representativity of periodic mono-sized sphere packing of varying system size was first studied by comparing their pore size distributions and...

Persistent link: https://www.econbiz.de/10011060242

Identification of the affected areas by mass movement through a physically based model of landslide hazard combined with an empirical model of debris flow

Gomes, Roberto; Guimarães, Renato; Carvalho, Osmar; … - In: Natural Hazards 45 (2008) 2, pp. 197-209

: (a) elaboration of a digital elevation model (DEM), (b) application of the deterministic SHALSTAB model to locate the …

Persistent link: https://www.econbiz.de/10010995639