Search Results - "Nathan Bradley, D."

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  1. 1

    Measuring gravel transport and dispersion in a mountain river using passive radio tracers by Nathan Bradley, D., Tucker, Gregory E.

    Published in Earth surface processes and landforms (01-08-2012)
    “…ABSTRACT Random walk models of fluvial sediment transport recognize that grains move intermittently, with short duration steps separated by rests that are…”
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    Journal Article
  2. 2

    Fractional dispersion in a sand bed river by Bradley, D. Nathan, Tucker, Gregory E., Benson, David A.

    Published in Journal of Geophysical Research (17-03-2010)
    “…Random walk models of fluvial bed load transport use probability distributions to describe the distance a grain travels during an episode of transport and the…”
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    Journal Article
  3. 3

    Direct Observation of Heavy‐Tailed Storage Times of Bed Load Tracer Particles Causing Anomalous Superdiffusion by Bradley, D. Nathan

    Published in Geophysical research letters (28-12-2017)
    “…A consensus has formed that the step length distribution of fluvial bed load is thin tailed and that the observed anomalous superdiffusion of bed load tracer…”
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    Journal Article
  4. 4

    The storage time, age, and erosion hazard of laterally accreted sediment on the floodplain of a simulated meandering river by Bradley, D. Nathan, Tucker, Gregory E.

    “…A sediment particle traversing the fluvial system may spend the majority of the total transit time at rest, stored in various sedimentary deposits. Floodplains…”
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    Journal Article
  5. 5

    Smartrock Transport in a Mountain Stream: Bedload Hysteresis and Changing Thresholds of Motion by Pretzlav, Kealie L. G., Johnson, Joel P. L., Bradley, D. Nathan

    Published in Water resources research (01-11-2020)
    “…Bedload movement is fundamentally probabilistic. Our quantitative understanding of gravel transport is particularly limited when flow conditions just exceed…”
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    Journal Article
  6. 6

    Evolution of tributary junctions and their capacity for rearing juvenile Chinook salmon (Oncorhynchus tshawytscha) on a regulated river by Buxton, Todd H., Bradley, D. Nathan

    Published in Ecohydrology (01-12-2022)
    “…The Trinity River in northern California was adjusting to unregulated flood and mining impacts when it was dammed and flow regulation began in 1960. We examine…”
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    Journal Article
  7. 7

    Trouble with diffusion: Reassessing hillslope erosion laws with a particle-based model by Tucker, Gregory E., Bradley, D. Nathan

    “…Many geomorphic systems involve a broad distribution of grain motion length scales, ranging from a few particle diameters to the length of an entire hillslope…”
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    Journal Article
  8. 8

    Longitudinal Fluvial Dispersion of Coarse Particles: Insights From Field Observations and Model Simulations by Yadav, Anshul, Hassan, Marwan A., McDowell, Conor, Bradley, D. Nathan, Sen, Sumit

    Published in Water resources research (01-11-2024)
    “…Abstract In this study, we use field observations augmented with model simulations to examine gravel dispersion over nine years (2007–2015) in Halfmoon Creek…”
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    Journal Article
  9. 9

    Smartrock Transport From Seconds to Seasons: Shear Stress Controls on Gravel Diffusion Inferred From Hop and Rest Scaling by Pretzlav, Kealie L. G., Johnson, Joel P. L., Bradley, D. Nathan

    Published in Geophysical research letters (16-05-2021)
    “…Our ability to test probabilistic models linking clast movements to bedload diffusion is most limited by basic field data, because measuring transport…”
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    Journal Article
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    Modeling sediment transport with random walks by Bradley, D Nathan

    Published 01-01-2010
    “…The motion of a sediment grain along the bed of a river is fundamentally a random walk. A grain moves intermittently, with an episode of motion followed by an…”
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    Dissertation
  12. 12
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  14. 14

    Modeling sediment transport with random walks by Bradley, D. Nathan

    “…The motion of a sediment grain along the bed of a river is fundamentally a random walk. A grain moves intermittently, with an episode of motion followed by an…”
    Get full text
    Dissertation