Avalanche statistics of driven granular slides in a miniature mound

Authors

Dranreb Earl Juanico ⋅ PH National Institute of Physics, University of the Philippines Diliman
Anthony Longjas ⋅ PH National Institute of Physics, University of the Philippines Diliman
Rene Batac ⋅ PH National Institute of Physics, University of the Philippines Diliman
Christopher Monterola ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

We examine avalanche statistics of rain- and vibration-driven granular slides in miniature sand mounds. A crossover from power-law to non power-law avalanche-size statistics is demonstrated as a generic driving rate ν is increased. For slowly-driven mounds, the tail of the avalanche-size distribution is a power-law with exponent −1.97 ± 0.31, reasonably close to a value previously reported for landslide volumes. The interevent occurrence times are also analyzed for slowly-driven mounds; its distribution exhibits a powerlaw with exponent −2.670 ± 0.001.

Based on the article that appeared in Geophys. Res. Lett. 35, L19403.

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Issue

2008: Proceedings of the 26th Samahang Pisika ng Pilipinas Physics Congress

Article ID

SPP-2008-INV-03

Section

Invited Presentations

Published

2008-10-22

How to Cite

[1]

DE Juanico, A Longjas, R Batac, and C Monterola, Avalanche statistics of driven granular slides in a miniature mound, Proceedings of the Samahang Pisika ng Pilipinas 26, SPP-2008-INV-03 (2008). URL: https://proceedings.spp-online.org/article/view/SPP-2008-INV-03.