| 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
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB83-117077 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| 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 |
