SCOUR AND FILL IN EPHEMERAL STREAMS

In this report the classical concept that mean bed elevation over an entire stream reach is lowered by scour during flood-wave passage and is restored by deposition in the waning flood phase (mean-bed scour and fill) is challenged. The alternative that both scour and fill occur concurrently at different migrating loci within a reach (local scour and fill) is more consistent with published field data. The field and laboratory investigations reported suggest that mean-bed scour and fill in a uniform channel is minor compared to local scour and fill caused by bedform migration, and that maximum local scour and fill may occur on the waning flood in some instances.

  • Supplemental Notes:
    • Also available as California Inst. of Tech., Pasadena, Div. of Geological and Planetary Sciences, Rept. No. contrib-2695.
  • Corporate Authors:

    California Institute of Technology

    WM Keck, Laboratory of Hydraulics and Water Resources
    Pasadena, CA  USA 
  • Authors:
    • Foley, M G
  • Publication Date: 1975-11

Media Info

  • Pagination: 204 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00137209
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: KH-R-33 Intrm Rpt., ARO-1108.3-G5
  • Contract Numbers: Grant DAHC04-74-, Grant NSF-GK-318
  • Files: TRIS
  • Created Date: Sep 4 1976 12:00AM