Integrating ERT and SP Techniques for Characterizing Aquifers and Surface-Groundwater Interactions.

Ground water Pub Date : 2024-10-24 DOI:10.1111/gwat.13444
Md Lal Mamud, Robert M Holt, Craig J Hickey, Andrew M O'Reilly, Leti T Wodajo, Parsa Bakhtiari Rad, Md Abdus Samad
{"title":"Integrating ERT and SP Techniques for Characterizing Aquifers and Surface-Groundwater Interactions.","authors":"Md Lal Mamud, Robert M Holt, Craig J Hickey, Andrew M O'Reilly, Leti T Wodajo, Parsa Bakhtiari Rad, Md Abdus Samad","doi":"10.1111/gwat.13444","DOIUrl":null,"url":null,"abstract":"<p><p>This study enhances the understanding of riverbank filtration and improves management of the Mississippi River valley alluvial (MRVA) aquifer during a managed aquifer recharge (MAR) pilot project at Shellmound, MS. Using high-resolution electrical resistivity tomography (ERT) and self-potential (SP) geophysical methods, we characterized the heterogeneous MRVA aquifer and monitored groundwater flow near a pumping well. ERT was used to provide detailed spatial characterization, filling gaps left by airborne electromagnetic (AEM) data and soil boring logs, while SP techniques were used to monitor groundwater flow, predict drawdown trends, and investigate surface-groundwater interactions. Results showed that SP signals were influenced by groundwater flow, river infiltration, and water mixing due to pumping disturbance of natural geochemical stratification, with significant river interaction observed after 1 h of pumping. The integration of ERT and SP methods revealed lithologic heterogeneity, explaining greater drawdowns on the northern side of the well and increased flow from the riverside. This comprehensive approach offers valuable insights into aquifer management and sustainability.</p>","PeriodicalId":94022,"journal":{"name":"Ground water","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ground water","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1111/gwat.13444","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

Abstract

This study enhances the understanding of riverbank filtration and improves management of the Mississippi River valley alluvial (MRVA) aquifer during a managed aquifer recharge (MAR) pilot project at Shellmound, MS. Using high-resolution electrical resistivity tomography (ERT) and self-potential (SP) geophysical methods, we characterized the heterogeneous MRVA aquifer and monitored groundwater flow near a pumping well. ERT was used to provide detailed spatial characterization, filling gaps left by airborne electromagnetic (AEM) data and soil boring logs, while SP techniques were used to monitor groundwater flow, predict drawdown trends, and investigate surface-groundwater interactions. Results showed that SP signals were influenced by groundwater flow, river infiltration, and water mixing due to pumping disturbance of natural geochemical stratification, with significant river interaction observed after 1 h of pumping. The integration of ERT and SP methods revealed lithologic heterogeneity, explaining greater drawdowns on the northern side of the well and increased flow from the riverside. This comprehensive approach offers valuable insights into aquifer management and sustainability.

整合 ERT 和 SP 技术,确定含水层和地表-地下水相互作用的特征。
这项研究加深了人们对河岸过滤的了解,并改善了密西西比河流域冲积(MRVA)含水层在密西西比州贝壳丘(Shellmound)管理性含水层补给(MAR)试点项目期间的管理。利用高分辨率电阻率层析成像 (ERT) 和自电位 (SP) 地球物理方法,我们确定了异质 MRVA 含水层的特征,并监测了抽水井附近的地下水流。ERT 用于提供详细的空间特征,填补机载电磁(AEM)数据和土壤钻孔记录留下的空白,而 SP 技术则用于监测地下水流、预测缩减趋势以及研究地表水与地下水之间的相互作用。结果表明,由于抽水干扰了自然地球化学分层,SP 信号受到地下水流、河流入渗和水体混合的影响,抽水 1 小时后观察到明显的河流相互作用。ERT和SP方法的整合揭示了岩性的异质性,解释了水井北侧水位下降较多和河水流量增加的原因。这种综合方法为含水层管理和可持续性提供了宝贵的见解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信