Riverbed Permeabilities: Information from Pooled Data

Numerical values of hydraulic conductivities of river channel‐lining materials are assembled from published and unpublished sources. These are found to cover a range from below 1.0×10−9 to above 1.0×10−2 m sec1 and to be concentrated in the region 1.0×10−7 to 1.0 ×10−3 m sec−1. Variability within a...

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Bibliographic Details
Published in:Ground water 2001-07, Vol.39 (4), p.546-553
Main Author: Calver, Ann
Format: Article
Language:English
Subjects:
Channels (Hydraulic engineering)
Environmental Monitoring
Environmental sciences
Geological Phenomena
Geology
Hydrology
Materials
Models, Theoretical
Permeability
Porous materials
Rivers
Soil
Water leakage
Water Movements
Water Pollutants - analysis
Water Supply
Water, Underground
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Summary:Numerical values of hydraulic conductivities of river channel‐lining materials are assembled from published and unpublished sources. These are found to cover a range from below 1.0×10−9 to above 1.0×10−2 m sec1 and to be concentrated in the region 1.0×10−7 to 1.0 ×10−3 m sec−1. Variability within a site can be large. Assessment of the values in relation to sediment, scale, and method of determination presents a complex picture, and generalization is not straightforward. Hydraulic conductivity determinations from numerical modeling, which tends to be associated with averaging at larger spatial scales, are associated with a more conservative range of values than those derived from field and laboratory analyses. The sample of determinations provides a guideline basis of representative values for hydrological and hydrogeological assessment where specific investigation is not possible.
ISSN:0017-467X
1745-6584
DOI:10.1111/j.1745-6584.2001.tb02343.x