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Logjams are not jammed: measurements of log motions in Big Creek, Idaho
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Abstract
Colloquially, a "logjam" indicates a kinematic arrest of movement. Taken literally, it refers to a type of dense accumulation of wood in rivers widely recognized as bestowing numerous biological and physical benefits to the system but also present serious hazards to infrastructure. Despite this, no in-situ field measurements have assessed the degree of arrest in a naturally-formed logjam. Using time-lapse photography, repeat total station surveys and water level loggers, we provide an unprecedented perspective on the evolution of a logjam in central Idaho. Despite the namesake, we find that the logjam is not jammed. The ensemble of logs progr... more
DOI
https://doi.org/10.31223/osf.io/x9s27
Subjects
Earth Sciences, Geomorphology, Physical Sciences and Mathematics
Keywords
anisotropic granular materials, clogging, jamming, large woody debris, logjams, log rafts
Dates
Published: 2019-11-08 01:43
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