Search Results - subject:"avalanche"

Finite size behavior of the asymmetric avalanche process

Povolotsky, A.M.; Priezzhev, V.B.; Hu, Chin-Kun - In: Physica A: Statistical Mechanics and its Applications 321 (2003) 1, pp. 280-285

We study the behavior of particle flow in the asymmetric avalanche process with partially asymmetric diffusion below …

Persistent link: https://www.econbiz.de/10010590324

The Elements of Applied Avalanche Forecasting, Part I: The Human Issues

McClung, D. - In: Natural Hazards 26 (2002) 2, pp. 111-129

Avalanche forecasting has traditionally been defined from the perspective of a geophysical problem with respect to the … state of stability of the snow cover. In thistwo-part treatise, avalanche forecasting is described in a broader sense by … the last three elements, which are mostly about the physical issues, and some basic Rules of applied avalanche forecasting …

Persistent link: https://www.econbiz.de/10010846762

The Elements of Applied Avalanche Forecasting, Part II: The Physical Issues and the Rules of Applied Avalanche Forecasting

McClung, D. - In: Natural Hazards 26 (2002) 2, pp. 131-146

This paper (Part II) constitutes the second of a two part series todefine the seven elements of avalanche forecasting … avalancheforecasting are included here, for the first time, to illustrate physically based principleswhich are used in applied avalanche … forecasting and their link to data analysis and decisions.Since the seven elements of applied avalanche forecasting are strongly …

Persistent link: https://www.econbiz.de/10010846886

New toppling dynamics for the self-organized critical rainfall model

Andrade, Roberto F.S; Pinho, Suani T.R; Fraga, Sandro C; … - In: Physica A: Statistical Mechanics and its Applications 314 (2002) 1, pp. 405-410

In this paper we introduce two new dynamical features of rainfall phenomena into the self-organized critical rainfall model. The new dynamics lead to the constrained random and the complete toppling versions, both of which lose the abelian character of the original model. The constrained random...

Persistent link: https://www.econbiz.de/10010589202

Avalanche prediction in Abelian sandpile model

Dorso, C.O.; Dadamia, D. - In: Physica A: Statistical Mechanics and its Applications 308 (2002) 1, pp. 179-191

node as the first, we calculate the step-by-step probability of occurrence of avalanches of a given size. An avalanche …

Persistent link: https://www.econbiz.de/10010590805

THE FOUR AVALANCHE FRONTS: A TEST CASE FOR GRANULAR SURFACE FLOW MODELING

DOUADY, STÉPHANE; ANDREOTTI, BRUNO; CLADÉ, PIERRE; … - In: Advances in Complex Systems (ACS) 04 (2001) 04, pp. 509-522

Granular surface flows have still to be fully modelled. Here, we present the four types of front that can be observed in avalanches. These strongly inhomogeneous and unsteady flows are very sensitive test cases for the different types of model. We show that, at least qualitatively for the...

Persistent link: https://www.econbiz.de/10005050899

Scaling properties of avalanches from a collapsing granular pile

Jia, L.C; Lai, Pik-Yin; Chan, C.K - In: Physica A: Statistical Mechanics and its Applications 281 (2000) 1, pp. 404-412

Results of an experimental investigation of the scaling properties of a collapsing rice pile induced by reducing the length of the base support of the pile are reported. It is found that two angles of repose are needed to describe the shape of the collapsing granular pile. Corresponding to these...

Persistent link: https://www.econbiz.de/10010871720

Two types of avalanche behaviour in model granular media

Barker, G.C; Mehta, Anita - In: Physica A: Statistical Mechanics and its Applications 283 (2000) 3, pp. 328-336

We have described a lattice model of a sandpile that includes a coupling between evolving granular structures and dynamic responses. The coupling manifests as a granular memory. We have illustrated the role of memory by observing avalanches in a (three)-dimensional model sandpile. There are two...

Persistent link: https://www.econbiz.de/10010591573

Effect of anisotropy on the self-organized critical states of Abelian sandpile models

Tsuchiya, Tomoko; Katori, Makoto - In: Physica A: Statistical Mechanics and its Applications 266 (1999) 1, pp. 358-361

degree of anisotropy in the avalanche processes, in which c=1 is for the isotropic case. We calculate the expected number of …

Persistent link: https://www.econbiz.de/10011061474

International Cooperation for Solving the Avalanche Problem in Turkey

GÜRER, İBRAHIM - In: Natural Hazards 18 (1998) 1, pp. 77-85

been initiated among SFISAR (Swiss Federal Institute for Snow and Avalanche Research), CEMAGREF (Centre National du … Directorate of Disaster Affairs). This three-year project started in 1994 as a development project on avalanche forecasting … technologies in avalanche forecasting and avalanche mapping were transferred from Switzerland and France to Turkey with the …

Persistent link: https://www.econbiz.de/10010996575