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OLS Field Name OLS Field Data
Main Title Advection-Dispersion Interpretation of Tracer Observations in an Aquifer.
Author Hoehn, Eduard ; Roberts, Paul V. ;
CORP Author Stanford Univ., CA. Dept. of Civil Engineering.;Robert S. Kerr Environmental Research Lab., Ada, OK.
Year Published 1982
Report Number EPA-CR-808851 ;EPA-R-804431; EPA-600/J-82-232;
Stock Number PB83-117077
Additional Subjects Hydrogeology ; Ground water recharge ; Hydraulic models ; Water pollution control ; Aquifers ; Injection wells ; Mathematical models ; Advection ; Dispersing ; Isotopic labeling ; Tritium ; Hydraulic conductivity ; Comparison ; Porosity ; Tables(Data) ; Reprints ; Path of pollutants ; Tracer studies
Library Call Number Additional Info Location Last
NTIS  PB83-117077 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 11p
Abstract Data from field tracer experiments are interpreted to evaluate the adequacy of an advection-dispersion model for simulating field conditions. A stimulus-response approach based on chemical reactor theory was applied. Two different pulse stimuli at an injection well resulted in responses in two observation wells located at distances of 8 and 17 m, respectively, from the injection well. The wells are perforated over the entire aquifer thickness of 1-2 m. The behavior of the two conservative tracers agreed closely with each other. A two-domain model is employed to extend the simple advection-dispersion equation to account for the observed tailing. Response curves of concentrations were fitted with finite-difference simulations using the two-domain model. The responses at the more distant well were characterized by values of dispersivity equal to or slightly smaller than those at the nearer well.
Supplementary Notes Pub. in Ground Water, v20 n4 p457-465 Jul-Aug 82.
NTIS Title Notes Journal article.
Title Annotations Reprint: Advection-Dispersion Interpretation of Tracer Observations in an Aquifer.
PUB Date Free Form 1982
Category Codes 13B; 8H; 68D; 50B; 48G
NTIS Prices PC A02/MF A01
Primary Description 600/15
Document Type NT
Cataloging Source NTIS/MT
Control Number 305006301
Origin NTIS
Type CAT