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Paleohydraulics and hydrodynamics of Scabland floodsThe last major episode of scabland flooding (approx. 18,000-13,000 years B.P.) left considerable high-water mark evidence in the form of: (1) eroded channel margins; (2) depositional features; (3) ice-rafter erratics; and (4) divide crossings. These were used to reconstruct maximum flood stages and water-surface gradients. Engineering hydraulic calculation procedures allowed the analyses of flood discharges and mean velocities from these data. Secondary flow phenomena, including various forms of vortices and flow separations, are considered to have been the principal erosive processes. The intense pressure and velocity gradients of vortices along the irregular channel boundaries produced the plucking-type erosion.
Document ID
Document Type
Conference Paper
Baker, V. R.
(Texas Univ. Austin, TX, United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1978
Publication Information
Publication: The Channeled Scabland
Subject Category
Earth Resources And Remote Sensing
Accession Number
Distribution Limits
Work of the US Gov. Public Use Permitted.
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