A new method for high-resolution characterization of hydraulic conductivity

被引：61
|
作者：
Liu, Gaisheng [1 ]
Butler, James J., Jr. [1 ]
Bohling, Geoffrey C. [1 ]
Reboulet, Edward [1 ]
Knobbe, Steve [1 ]
Hyndman, David W. [2 ]
机构：
[1] Univ Kansas, Kansas Geol Survey, Lawrence, KS 66047 USA
[2] Michigan State Univ, Dept Geol Sci, E Lansing, MI 48824 USA
来源：
WATER RESOURCES RESEARCH | 2009年 / 45卷
基金：
美国国家科学基金会;
关键词：
MACRODISPERSION; AQUIFER; SITE;
D O I：
10.1029/2009WR008319
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
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 (approximate to 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.
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页数：6
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