Analytical and observational relations between landslide volume and surface area

Klar, Assaf; Aharonov, Einat; Kalderon-Asael, Boriana; Katz, Oded

doi:10.1029/2009jf001604

Cited by 87 publications

(64 citation statements)

References 29 publications

(46 reference statements)

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“…The landslide volume (V) is found to relate to landside area (A) with a scaling exponent τ and an intercept ε Larsen et al 2010;Klar et al 2011) such that:…”

Section: Average Landslide Volumementioning

confidence: 99%

How sample size can effect landslide size distribution

Lan

2016

Geoenviron Disasters

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Background: Landslide size distribution is widely found to obey a negative power law with a rollover in the smaller size, and has been exploited by many researchers to inspect landside physics or to assess landslide erosion and landslide hazard. Yet, sample size has effect on the statistics of landslide size even though we manage to avoid complications associated with landslide datasets and statistical treatments. Results: In this paper, a series of stochastic simulations were implemented to explicitly and systematically quantify the effect of sample size. The results show that, the errors of parameters estimated based on small sample size can be considerably large. For a sample size of 100, the relative error of the estimated landslide erosion rate that has a probability of 50 % can approach 100 %. In addition, small sample size also obscures the statistical significance of the variances in parameters between different subsets of the same dataset. Although inconsistency was found regarding how the power exponent varies with rainfall intensity, numerical results suggest that the variance observed in a dataset with a small sample size may be not statistically significant.

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“…The landslide volume (V) is found to relate to landside area (A) with a scaling exponent τ and an intercept ε Larsen et al 2010;Klar et al 2011) such that:…”

Section: Average Landslide Volumementioning

confidence: 99%

How sample size can effect landslide size distribution

Lan

2016

Geoenviron Disasters

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“…landslides [7,8]) and industrial applications. Experiments in [1,3,5] revealed complex dynamics of the monodisperse slurry depending on the total volume fraction, φ 0 , and channel inclination angle, α.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of bidensity slurries on an incline

Lee¹,

Mavromoustaki²,

Urdaneta³

et al. 2014

Granular Matter

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We investigate the dynamics of bidensity slurries on an incline. The particle-fluid mixture consists of two species of negatively buoyant particles that have roughly the same size but significantly variant densities. This mismatch in particle densities induces or prevents settling depending on the relative amount of heavy to light particles, leading to complex regimes also found in the monodisperse case. In addition, when settling effects dominate within the thin film, we observe the phase separation down the incline between the particles and the liquid, as well as between two particle types.

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“…These updated charts not only enable the safety factor of the soil slope to be calculated without any iterative procedure, they also determine the type of failure mode. Recently Klar et al (2011) presented a new graphical interpretation of the safety factor of the soil slope and its relation to the probability of failure. Sun and Zhao (2013) extended the work of Klar et al (2011) by presenting convenient charts for estimation of the safety factor and identification of the failure mode.…”

Section: Reviewmentioning

confidence: 99%

“…Recently Klar et al (2011) presented a new graphical interpretation of the safety factor of the soil slope and its relation to the probability of failure. Sun and Zhao (2013) extended the work of Klar et al (2011) by presenting convenient charts for estimation of the safety factor and identification of the failure mode. In this study, we extended Sun and Zhao (2013) approach to quickly estimate FS of a deep failure case.…”

Section: Reviewmentioning

confidence: 99%

A simple procedure to directly estimate yield acceleration for seismic slope stability assessment

Tsai

Chien

2016

JGS Special Publication

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Accurate assessment of the stability of natural slopes and earth structures during earthquakes has become a critical aspect of the safe and cost-effective design of several projects in seismically active areas in Taiwan. As an intermediately complicated and accurate approach, Newmark-type displacement method, capable of estimating permanent earthquake-induced displacements as a reliable index of slope performance, is widely adopted to evaluate slope stability under seismic loading. This approach, however, becomes unwieldy when hundreds or thousands of iterations are required for a regional assessment because the yield acceleration (ky), a key parameter of this approach, is estimated by trial and error in conventional slope stability analyses. To cut down the computational effort, we developed a simple procedure to directly evaluate the ky for both shallow and deep slope failures. The factor of safety (FS) of slopes under static condition is first calculated without any iterative procedures, then the ky is determined through the established correlation between FS and ky. The ky calculated by the proposed procedure corresponds well with that obtained by the trial and error approach and, thus, can be applied efficiently to a regional assessment with thousands of slopes.

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Analytical and observational relations between landslide volume and surface area

Cited by 87 publications

References 29 publications

How sample size can effect landslide size distribution

How sample size can effect landslide size distribution

Experimental investigation of bidensity slurries on an incline

A simple procedure to directly estimate yield acceleration for seismic slope stability assessment

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