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  1. Stabilization of a gravel channel by large streamside obstructions and bedrock bends, Jacoby Creek, northwestern California

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    Author(s): Thomas E. Lisle
    Date: 1996
    Source: Geological Society of America Bulletin 97: 999-1011.
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (617 KB)

    Description

    Abstract - Jacoby Creek (bed width =12 m; bankfull discharge = 32.6 m 3 /s) contains stationary gravel bars that have forms and positions controlled by numerous large streamside obstructions (bedrock outcrops, large woody debris, and rooted bank projections) and bedrock bends. Bank-projection width and bar volume measured in 104 channel segments 1 bed-width long are significantly cross-correlated at lags of -1, 3, and 4, indicating the tendency for large obstructions and bends to form bars 3 to 4 bed-widths downstream and 1 bed-width upstream. All of the 18 bars downstream of large obstructions or bends in the study reach were along the obstruction side of the channel or outside bank of the bend.

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    Citation

    Lisle, Thomas E. 1996. Stabilization of a gravel channel by large streamside obstructions and bedrock bends, Jacoby Creek, northwestern California. Geological Society of America Bulletin 97: 999-1011.

    Keywords

    PSW4351, Jacoby Creek, streamside obstructions, bedrock bends, woody debris, alluvial channels, channel morphology

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