Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.2172/399669 |
| 报告编号 | DOE/NV/10461--T77; NWPO-TR--023-95 |
| 来源ID | OSTI_ID: 399669 |
| Investigation of the impact of sparse data on the use of geostatistical approaches | |
| Lamorey, G.W.; Jacobson, E.A. | |
| 英文摘要 | Techniques to estimate semivariogram parameters are investigated with respect to assessing the effects of sparse data and detecting the presence of a trend. These techniques are applied to the determination of semivariogram parameters used in the estimation of hydraulic head values at node locations from measured head data. The presence of no-flow boundaries is included in the estimation of hydraulic heads at node values by applying constraints to the head gradient across the no-flow boundaries. The resulting hydraulic head estimates are used in an inverse groundwater flow model to assess the impact of the no-flow boundary constraints on transmissivities determined from the inverse model. It is found in a case study that when gradients in the prior head distribution do not match assumed no-flow boundaries, the inverse model can produce low transmissivity values along these no-flow boundaries. Prior heads estimated with constraints on the head gradient across no-flow boundaries did not produce the low transmissivity values along no-flow boundaries. |
| 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 ; YUCCA MOUNTAIN ; UNDERGROUND FACILITIES ; SITE CHARACTERIZATION ; HYDROLOGY ; SPENT FUELS ; UNDERGROUND DISPOSAL ; HIGH-LEVEL RADIOACTIVE WASTES ; KRIGING |
| URL | http://www.osti.gov/scitech/servlets/purl/399669 |
| 资源类型 | 科技报告 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/266382 |
| 推荐引用方式 GB/T 7714 | Lamorey, G.W.,Jacobson, E.A.. Investigation of the impact of sparse data on the use of geostatistical approaches,1995. |
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