Contaminant transport model validation [electronic resource] : The Oak Ridge Reservation.
In the complex geologic setting on the Oak Ridge Reservation, hydraulic conductivity is anisotropic and flow is strongly influenced by an extensive and largely discontinuous fracture network. Difficulties in describing and modeling the aquifer system prompted a study to obtain aquifer property data...
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Online Access (via OSTI) |
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| Corporate Author: | |
| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Oak Ridge, Tenn. : Oak Ridge, Tenn. :
Oak Ridge National Laboratory. ; distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,
1988.
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| Subjects: |
MARC
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| 245 | 0 | 0 | |a Contaminant transport model validation |h [electronic resource] : |b The Oak Ridge Reservation. |
| 260 | |a Oak Ridge, Tenn. : |b Oak Ridge National Laboratory. ; |a Oak Ridge, Tenn. : |b distributed by the Office of Scientific and Technical Information, U.S. Department of Energy, |c 1988. | ||
| 300 | |a Pages: 31 : |b digital, PDF file. | ||
| 336 | |a text |b txt |2 rdacontent. | ||
| 337 | |a computer |b c |2 rdamedia. | ||
| 338 | |a online resource |b cr |2 rdacarrier. | ||
| 500 | |a Published through SciTech Connect. | ||
| 500 | |a 09/01/1988. | ||
| 500 | |a "ornl/tm-10972" | ||
| 500 | |a "DE89001382" | ||
| 500 | |a Lee, R.R.; Ketelle, R.H. | ||
| 520 | 3 | |a In the complex geologic setting on the Oak Ridge Reservation, hydraulic conductivity is anisotropic and flow is strongly influenced by an extensive and largely discontinuous fracture network. Difficulties in describing and modeling the aquifer system prompted a study to obtain aquifer property data to be used in a groundwater flow model validation experiment. Characterization studies included the performance of an extensive suite of aquifer test within a 600-square-meter area to obtain aquifer property values to describe the flow field in detail. Following aquifer test, a groundwater tracer test was performed under ambient conditions to verify the aquifer analysis. Tracer migration data in the near-field were used in model calibration to predict tracer arrival time and concentration in the far-field. Despite the extensive aquifer testing, initial modeling inaccurately predicted tracer migration direction. Initial tracer migration rates were consistent with those predicted by the model; however, changing environmental conditions resulted in an unanticipated decay in tracer movement. Evaluation of the predictive accuracy of groundwater flow and contaminant transport models on the Oak Ridge Reservation depends on defining the resolution required, followed by field testing and model grid definition at compatible scales. The use of tracer tests, both as a characterization method and to verify model results, provides the highest level of resolution of groundwater flow characteristics. 3 refs., 4 figs. | |
| 536 | |b AC05-84OR21400. | ||
| 650 | 7 | |a Aquifers. |2 local. | |
| 650 | 7 | |a Mathematical Models. |2 local. | |
| 650 | 7 | |a Calibration. |2 local. | |
| 650 | 7 | |a Optimization. |2 local. | |
| 650 | 7 | |a Ground Water. |2 local. | |
| 650 | 7 | |a Flow Rate. |2 local. | |
| 650 | 7 | |a Evaluation. |2 local. | |
| 650 | 7 | |a Hydraulic Conductivity. |2 local. | |
| 650 | 7 | |a Oak Ridge Reservation. |2 local. | |
| 650 | 7 | |a Testing. |2 local. | |
| 650 | 7 | |a Hydrogen Compounds. |2 local. | |
| 650 | 7 | |a National Organizations. |2 local. | |
| 650 | 7 | |a Oxygen Compounds. |2 local. | |
| 650 | 7 | |a Us Doe. |2 local. | |
| 650 | 7 | |a Us Erda. |2 local. | |
| 650 | 7 | |a Us Organizations. |2 local. | |
| 650 | 7 | |a Water. |2 local. | |
| 650 | 7 | |a Environmental Sciences. |2 edbsc. | |
| 710 | 2 | |a Oak Ridge National Laboratory. |4 res. | |
| 710 | 1 | |a United States. |b Department of Energy. |b Office of Scientific and Technical Information. |4 dst. | |
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