Results 71 to 80 of about 19,541 (256)

A cellular automaton for the factor of safety field in landslides modeling [PDF]

open access: yes, 2006
Landslide inventories show that the statistical distribution of the area of recorded events is well described by a power law over a range of decades.
Cataudella, V.   +4 more
core   +1 more source

Nesting ecology of an ice‐associated seabird, Kittlitz's murrelet, at the northern edge of its range

open access: yesWildlife Society Bulletin, EarlyView.
We studied the Kittlitz's murrelet, an ice‐associated seabird of conservation concern, at the northern edge of its range. Over a 2‐year period, we estimated nest density and success at 2 sites, captured and telemetered nesting murrelets, and tested the use of a thermal camera to improve nest detection.
Michelle L. Kissling   +9 more
wiley   +1 more source

Forecasting post-earthquake rockfall activity

open access: yesJournal of Applied Geodesy, 2022
Abstract Important infrastructure such as highways or railways traverse unstable terrain in many mountainous and scenic parts of the world. Rockfalls and landslides result in frequent maintenance needs, system unreliability due to frequent closures and restrictions, and safety hazards.
Michael J. Olsen   +4 more
openaire   +2 more sources

Optimization strategy for flexible barrier structures: investigation and back analysis of a rockfall disaster case in southwestern China

open access: yesNatural Hazards and Earth System Sciences
. Field investigations and back analyses were conducted on a rockfall hazard. The flexible barrier protection system constructed along the roadside was damaged by the rockfall impact and lost its mitigation ability. Vital physical characteristics such as
Li-Ru Luo   +5 more
semanticscholar   +1 more source

Rockfall trajectory reconstruction: a flexible method utilizing video footage and high-resolution terrain models

open access: yesEarth Surface Dynamics, 2022
. Many examples of rockfall simulation software provide great flexibility to the user at the expense of a hardly achievable parameter unification. With sensitive site-dependent parameters that are hardly generalizable from the literature and case studies,
F. Noël   +5 more
semanticscholar   +1 more source

What can lithics tell us about hominin technology's ‘primordial soup’? An origin of stone knapping via the emulation of Mother Nature

open access: yesArchaeometry, EarlyView.
Abstract The use of stone hammers to produce sharp stone flakes—knapping—is thought to represent a significant stage in hominin technological evolution because it facilitated the exploitation of novel resources, including meat obtained from medium‐to‐large‐sized vertebrates. The invention of knapping may have occurred via an additive (i.e., cumulative)
Metin I. Eren   +23 more
wiley   +1 more source

A Remote-Sensing-Based Method Using Rockfall Inventories for Hazard Mapping at the Community Scale in the Arequipa Region of Peru

open access: yesRemote Sensing
Small communities in the Arequipa region of Peru are susceptible to rockfall hazards, which impact their lives and livelihoods. To mitigate rockfall hazards, it is first necessary to understand their locations and characteristics, which can be compiled ...
Cassidy L. Grady   +6 more
doaj   +1 more source

Significance of substrate soil moisture content for rockfall hazard assessment [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2019
Rockfall modelling is an important tool for hazard analysis in steep terrain. Calibrating terrain parameters ensures that the model results more accurately represent the site-specific hazard. Parameterizing rockfall models is challenging because rockfall
L. M. Vick   +4 more
doaj   +1 more source

Quantification of meteorological conditions for rockfall triggers in Germany

open access: yesNatural Hazards and Earth System Sciences, 2022
. A rockfall dataset for Germany is analysed with the objective of identifying the meteorological and hydrological (pre-)conditions that change the probability for such events in central Europe.
K. Nissen   +5 more
semanticscholar   +1 more source

Early Holocene jökulhlaup chronology and deglaciation dynamics in central Iceland

open access: yesBoreas, EarlyView.
Glacial lake outburst floods (jökulhlaups) have occurred throughout the Quaternary in glaciated regions worldwide. Reconstructing flood chronology yields insight into deglaciation processes, environmental change and the role of extreme events in landscape evolution.
Greta H. Wells   +4 more
wiley   +1 more source

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