On the importance of considering specific storage heterogeneity in hydraulic tomography: Laboratory sandbox and synthetic studies
文献类型：期刊论文
| 作者 | Zhao, Zhanfeng1,2; Illman, Walter A.2 |
| 刊名 | JOURNAL OF HYDROLOGY
 |
| 出版日期 | 2021-02-01 |
| 卷号 | 593页码:16 |
| ISSN号 | 0022-1694 |
| 关键词 | Aquifer heterogeneity Specific storage Hydraulic tomography Model calibration and validation |
| DOI | 10.1016/j.jhydrol.2020.125874 |
| 通讯作者 | Zhao, Zhanfeng(zhaozhanfeng@igsnrr.ac.cn) |
| 英文摘要 | Over the last two decades, various studies on Transient Hydraulic Tomography (THT) have shown that it is an effective approach to characterize subsurface heterogeneity. Typically, high-resolution hydraulic conductivity (K) distributions were recovered, while the spatial variability of specific storage (S-s) was found to be smooth. In some studies, S-s heterogeneity has been intentionally ignored due to the belief that S-s is less variable than K. Therefore, one may question the importance of considering S-s heterogeneity during THT and its impact on the reliability of estimated hydraulic parameters. To investigate these issues, three modeling approaches (i.e., effective parameters, geological, and geostatistics-based) were used to obtain K and S-s estimates of varying spatial resolutions. The reliability of K and S-s estimates were evaluated by comparing their drawdown prediction performances. The values of using different prior K and S-s information for THT analyses were investigated. Our results revealed that: (1) the K distribution estimated from the geostatistics-based steady-state HT analysis accurately predicted the late time drawdowns, while further improvements in transient drawdowns were obtained only after jointly treating the S-s field as heterogeneous; (2) S-s heterogeneity should be considered in addition to K for THT inversions, even when the estimated S-s field is smooth; and (3) using K and S-s estimates from the calibrated geological model as initial mean distributions for the geostatistical inversion approach were helpful in capturing both interlayer and intralayer heterogeneity of K and S-s. These findings suggested that S-s heterogeneity should be properly considered during the implementation of THT. |
| WOS关键词 | THICK CLAYSTONE AQUITARDS ; GROUNDWATER-FLOW ; SOLUTE TRANSPORT ; SLUG TESTS ; AQUIFER ; CONDUCTIVITY ; FIELD ; PERMEABILITY ; IDENTIFICATION ; INFORMATION |
| 资助项目 | Natural Sciences and Engineering Research Council of Canada (NSERC) ; Ontario Research Foundation (ORF) ; Canada Foundation for Innovation (CFI) ; National Natural Science Foundation of China[41807202] ; Beijing Municipal Natural Science Foundation[8162043] |
| WOS研究方向 | Engineering ; Geology ; Water Resources |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000639853400059 |
| 资助机构 | Natural Sciences and Engineering Research Council of Canada (NSERC) ; Ontario Research Foundation (ORF) ; Canada Foundation for Innovation (CFI) ; National Natural Science Foundation of China ; Beijing Municipal Natural Science Foundation |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/161714]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhao, Zhanfeng |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing, Peoples R China 2.Univ Waterloo, Dept Earth & Environm Sci, Waterloo, ON, Canada |
| 推荐引用方式 GB/T 7714 | Zhao, Zhanfeng,Illman, Walter A.. On the importance of considering specific storage heterogeneity in hydraulic tomography: Laboratory sandbox and synthetic studies[J]. JOURNAL OF HYDROLOGY,2021,593:16. |
| APA | Zhao, Zhanfeng,&Illman, Walter A..(2021).On the importance of considering specific storage heterogeneity in hydraulic tomography: Laboratory sandbox and synthetic studies.JOURNAL OF HYDROLOGY,593,16. |
| MLA | Zhao, Zhanfeng,et al."On the importance of considering specific storage heterogeneity in hydraulic tomography: Laboratory sandbox and synthetic studies".JOURNAL OF HYDROLOGY 593(2021):16. |
入库方式： OAI收割
来源：地理科学与资源研究所
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