A new probe has been developed for high-resolution characterization of hydraulic conductivity (K) in shallow unconsolidated formations. The probe was recently applied at the Macrodispersion Experiment (MADE) site in Mississippi where K was rapidly characterized at a resolution as fine as 0.015 m, which has not previously been possible. Eleven profiles were obtained with K varying up to 7 orders of magnitude in individual profiles. Currently, high-resolution (0.015-m) profiling has an upper K limit of 10 m/d; lower-resolution (???0.4-m) mode is used in more permeable zones pending modifications. The probe presents a new means to help address unresolved issues of solute transport in heterogeneous systems. Copyright 2009 by the American Geophysical Union.
|Title||A new method for high-resolution characterization of hydraulic conductivity|
|Authors||Gaisheng Liu, J.J. Butler, Geoffrey C. Bohling, Ed Reboulet, Steve Knobbe, D.W. Hyndman|
|Publication Subtype||Journal Article|
|Series Title||Water Resources Research|
|Record Source||USGS Publications Warehouse|