Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.2172/188564 |
| 报告编号 | WHC-EP--0883 |
| 来源ID | OSTI_ID: 188564 |
| Variability and scaling of hydraulic properties for 200 Area soils, Hanford Site | |
| Khaleel, R.; Freeman, E.J. | |
| 英文摘要 | Over the years, data have been obtained on soil hydraulic properties at the Hanford Site. Much of these data have been obtained as part of recent site characterization activities for the Environmental Restoration Program. The existing data on vadose zone soil properties are, however, fragmented and documented in reports that have not been formally reviewed and released. This study helps to identify, compile, and interpret all available data for the principal soil types in the 200 Areas plateau. Information on particle-size distribution, moisture retention, and saturated hydraulic conductivity (K{sub s}) is available for 183 samples from 12 sites in the 200 Areas. Data on moisture retention and K{sub s} are corrected for gravel content. After the data are corrected and cataloged, hydraulic parameters are determined by fitting the van Genuchten soil-moisture retention model to the data. A nonlinear parameter estimation code, RETC, is used. The unsaturated hydraulic conductivity relationship can subsequently be predicted using the van Genuchten parameters, Mualem`s model, and laboratory-measured saturated hydraulic conductivity estimates. Alternatively, provided unsaturated conductivity measurements are available, the moisture retention curve-fitting parameters, Mualem`s model, and a single unsaturated conductivity measurement can be used to predict unsaturated conductivities for the desired range of field moisture regime. |
| 出版年 | 1995 |
| 报告类型 | Technical Report |
| 语种 | 英语 |
| 国家 | 美国 |
| 来源学科分类 | 05 NUCLEAR FUELS ; RADIOACTIVE WASTE FACILITIES ; SITE CHARACTERIZATION ; HANFORD RESERVATION ; RADIOACTIVE WASTE STORAGE ; SOILS ; HYDRAULIC CONDUCTIVITY ; DATA ; R CODES ; FORECASTING ; MATHEMATICAL MODELS |
| URL | http://www.osti.gov/scitech/servlets/purl/188564 |
| 资源类型 | 科技报告 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/266371 |
| 推荐引用方式 GB/T 7714 | Khaleel, R.,Freeman, E.J.. Variability and scaling of hydraulic properties for 200 Area soils, Hanford Site,1995. |
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