Evaluation of Hydraulic Conductivity Estimates from Various Approaches with Groundwater Flow Models
文献类型：期刊论文
| 作者 | Sun, Dongwei1; Luo, Ning1; Vandenhoff, Aaron1; Mccall, Wesley3; Zhao, Zhanfeng2; Wang, Chenxi1; Rudolph, David L.1; Illman, Walter A.1 |
| 刊名 | GROUNDWATER
 |
| 出版日期 | 2023-09-13 |
| 页码 | 21 |
| ISSN号 | 0017-467X |
| DOI | 10.1111/gwat.13348 |
| 通讯作者 | Illman, Walter A.(willman@uwaterloo.ca) |
| 英文摘要 | Significant efforts have been expended for improved characterization of hydraulic conductivity (K) and specific storage (Ss) to better understand groundwater flow and contaminant transport processes. Conventional methods including grain size analyses (GSA), permeameter, slug, and pumping tests have been utilized extensively, while Direct Push-based Hydraulic Profiling Tool (HPT) surveys have been developed to obtain high-resolution K estimates. Moreover, inverse modeling approaches based on geology-based zonations, and highly parameterized Hydraulic Tomography (HT) have also been advanced to map spatial variations of K and Ss between and beyond boreholes. While different methods are available, it is unclear which one yields K estimates that are most useful for high resolution predictions of groundwater flow. Therefore, the main objective of this study is to evaluate various K estimates at a highly heterogeneous field site obtained with three categories of characterization techniques including: (1) conventional methods (GSA, permeameter, and slug tests); (2) HPT surveys; and (3) inverse modeling based on geology-based zonations and highly parameterized approaches. The performance of each approach is first qualitatively analyzed by comparing K estimates to site geology. Then, steady-state and transient groundwater flow models are employed to quantitatively assess various K estimates by simulating pumping tests not used for parameter estimation. Results reveal that inverse modeling approaches yield the best drawdown predictions under both steady and transient conditions. In contrast, conventional methods and HPT surveys yield biased predictions. Based on our research, it appears that inverse modeling and data fusion are necessary steps in predicting accurate groundwater flow behavior. |
| WOS关键词 | NATURAL GRADIENT EXPERIMENT ; SAND AQUIFER ; SLUG TESTS ; HETEROGENEOUS AQUIFER ; SPATIAL VARIABILITY ; TOMOGRAPHY ANALYSIS ; DISPERSION PROCESS ; SOLUTE TRANSPORT ; GEOLOGICAL DATA ; PUMPING-TEST |
| 资助项目 | The HPT surveys conducted by Geoprobe Systems, GroundTech Solutions Ltd. and the University of Waterloo (UW) at the NCRS were a result of discussions at the NovCare meeting held at the University of Waterloo during the summer of 2019. We are very grateful ; Natural Sciences and Engineering Research Council of Canada (NSERC) ; Qinhuangdao Architecture Design Institute |
| WOS研究方向 | Geology ; Water Resources |
| 语种 | 英语 |
| 出版者 | WILEY |
| WOS记录号 | WOS:001066248800001 |
| 资助机构 | The HPT surveys conducted by Geoprobe Systems, GroundTech Solutions Ltd. and the University of Waterloo (UW) at the NCRS were a result of discussions at the NovCare meeting held at the University of Waterloo during the summer of 2019. We are very grateful ; Natural Sciences and Engineering Research Council of Canada (NSERC) ; Qinhuangdao Architecture Design Institute |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/197904]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Illman, Walter A. |
| 作者单位 | 1.Univ Waterloo, Dept Earth & Environm Sci, Waterloo, ON N2L 3G1, Canada 2.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China 3.Geoprobe Syst Inc, 1835 Wall St, Salina, KS 67401 USA |
| 推荐引用方式 GB/T 7714 | Sun, Dongwei,Luo, Ning,Vandenhoff, Aaron,et al. Evaluation of Hydraulic Conductivity Estimates from Various Approaches with Groundwater Flow Models[J]. GROUNDWATER,2023:21. |
| APA | Sun, Dongwei.,Luo, Ning.,Vandenhoff, Aaron.,Mccall, Wesley.,Zhao, Zhanfeng.,...&Illman, Walter A..(2023).Evaluation of Hydraulic Conductivity Estimates from Various Approaches with Groundwater Flow Models.GROUNDWATER,21. |
| MLA | Sun, Dongwei,et al."Evaluation of Hydraulic Conductivity Estimates from Various Approaches with Groundwater Flow Models".GROUNDWATER (2023):21. |
入库方式： OAI收割
来源：地理科学与资源研究所
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