Avalanche statistics of driven granular slides in a miniature mound

Authors

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