Record Display for the EPA National Library Catalog
RECORD NUMBER: 6 OF 12Main Title | Examination of Scale-Dependent Dispersion Coefficients. | |||||||||||
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Author | Molz, F. J. ; Gueven, O. ; Melville, J. G. ; | |||||||||||
CORP Author | Auburn Univ., AL. Dept. of Civil Engineering.;Robert S. Kerr Environmental Research Lab., Ada, OK. | |||||||||||
Year Published | 1983 | |||||||||||
Report Number | EPA-R-810704; EPA/600/J-83/302; | |||||||||||
Stock Number | PB85-225043 | |||||||||||
Additional Subjects | Dispersing ; Ground water ; Aquifers ; Solutes ; Waterflow ; Advection ; Observation wells ; Thickness ; Mathematical models ; Theorems ; Elevation ; Hydraulic conductivity ; Reprints ; | |||||||||||
Holdings |
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Collation | 14p | |||||||||||
Abstract | Many hydrologists have observed that dispersion coefficients, when measured in the field, turn out to be scale-dependent. Recently, Guven, et al., (1983) presented a study which contains a basis for understanding the phenomenon of scale-dependent dispersion within a deterministic framework. The results of that study are used as a basis for defining a scale-dependent macro-dispersion coefficient for unidirectional flow in a stratified aquifer. The study and previous studies show that the primary physical mechanism that causes spreading of a solute near the source is different advection rates at different elevations in the aquifer. |