Evaluation of specific retention, specific yield, and storage-dependent drainability efficiency in a coastal milieu via geo-electrical technology
The aim of this research was the application of geo-electrical technology in the determination of specific retention, specific yield, and storage-dependent drainability efficiency within a major coastal milieu in Nigeria. This improves on past work where expensive and time-intensive pumping tests we...
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| Veröffentlicht in: | Water practice and technology 2024-09, Vol.19 (9), p.3654-3675 |
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| container_title | Water practice and technology |
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| creator | Udosen, Ndifreke I. George, Nyakno J. |
| description | The aim of this research was the application of geo-electrical technology in the determination of specific retention, specific yield, and storage-dependent drainability efficiency within a major coastal milieu in Nigeria. This improves on past work where expensive and time-intensive pumping tests were employed to determine specific retention and specific yield. In addition to the determination of these key aquifer geo-kinetic properties, other important aquifer characteristics such as aquifer potentiality, protectivity, and vulnerability to contamination within this major coastal system were determined. Geo-electrical technology employed Wenner and Schlumberger arrays to undertake Vertical Electrical Soundings (VES) and Electrical Resistivity Tomography (ERT) surveys and results obtained were constrained by ground truth from lithological logs. Results from the electrical resistivity surveys indicated that the lithological strata comprised motley topsoil, coarse sand, fine sand, and sandy clay. Measures of specific yield and specific retention were generated as secondary geo-electrical indices. Specific yield intersected with specific retention at 73% storage-dependent drainability efficiency (SDE), indicating that this percentage must be exceeded for optimal groundwater extraction from the rock matrix's pore spaces during pumping. Aquifer transmissivity measures indicated high aquifer potentiality; longitudinal conductance measures indicated poor aquifer protectivity implying increased vulnerability of the aquifer to contamination. |
| doi_str_mv | 10.2166/wpt.2024.208 |
| format | Article |
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This improves on past work where expensive and time-intensive pumping tests were employed to determine specific retention and specific yield. In addition to the determination of these key aquifer geo-kinetic properties, other important aquifer characteristics such as aquifer potentiality, protectivity, and vulnerability to contamination within this major coastal system were determined. Geo-electrical technology employed Wenner and Schlumberger arrays to undertake Vertical Electrical Soundings (VES) and Electrical Resistivity Tomography (ERT) surveys and results obtained were constrained by ground truth from lithological logs. Results from the electrical resistivity surveys indicated that the lithological strata comprised motley topsoil, coarse sand, fine sand, and sandy clay. Measures of specific yield and specific retention were generated as secondary geo-electrical indices. Specific yield intersected with specific retention at 73% storage-dependent drainability efficiency (SDE), indicating that this percentage must be exceeded for optimal groundwater extraction from the rock matrix's pore spaces during pumping. 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This improves on past work where expensive and time-intensive pumping tests were employed to determine specific retention and specific yield. In addition to the determination of these key aquifer geo-kinetic properties, other important aquifer characteristics such as aquifer potentiality, protectivity, and vulnerability to contamination within this major coastal system were determined. Geo-electrical technology employed Wenner and Schlumberger arrays to undertake Vertical Electrical Soundings (VES) and Electrical Resistivity Tomography (ERT) surveys and results obtained were constrained by ground truth from lithological logs. Results from the electrical resistivity surveys indicated that the lithological strata comprised motley topsoil, coarse sand, fine sand, and sandy clay. Measures of specific yield and specific retention were generated as secondary geo-electrical indices. Specific yield intersected with specific retention at 73% storage-dependent drainability efficiency (SDE), indicating that this percentage must be exceeded for optimal groundwater extraction from the rock matrix's pore spaces during pumping. Aquifer transmissivity measures indicated high aquifer potentiality; longitudinal conductance measures indicated poor aquifer protectivity implying increased vulnerability of the aquifer to contamination.</description><subject>Anniversaries</subject><subject>Aquifer characteristics</subject><subject>Aquifer testing</subject><subject>Aquifers</subject><subject>Conductivity</subject><subject>Contamination</subject><subject>Drainage</subject><subject>Efficiency</subject><subject>Electrical resistivity</subject><subject>Flow velocity</subject><subject>Groundwater</subject><subject>Hydraulics</subject><subject>Lithology</subject><subject>Permeability</subject><subject>Pumping</subject><subject>Pumping tests</subject><subject>Rain</subject><subject>Retention</subject><subject>Sand</subject><subject>Soundings</subject><subject>Specific retention</subject><subject>Specific yield</subject><subject>Surveys</subject><subject>Tomography</subject><subject>Topsoil</subject><subject>Transmissivity</subject><subject>Water resources</subject><issn>1751-231X</issn><issn>1751-231X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNpNkM1KAzEUhYMoWKs7HyDgtlMnk5lOspRSf0Bwo-BuyM9NTZkmY5JW5jF8Y1Mq6Obcyzkf98JB6JqU84osFrdfQ5pXZVVnYSdoQtqGFBUl76f_9nN0EeOmLBctZ3SCvld70e9Est5hb3AcQFljFQ6QwB3c2Z83Wuj1DAuncUw-iDUUGgZwOpNYB2GdkLa3acRgMm_BqRFbhwVWXsQkerzNMezw3gq8Bl9ADyoFq3KSQH043_v1eInOjOgjXP3OKXq7X70uH4vnl4en5d1zoUhTpqImXNNKc6mlMryhWrQN5ZTLVraqhpIAY4pTWZecaSJNC62sGKG1aFoO3NApujneHYL_3EFM3cbvgssvO0pI01SEEZap2ZFSwccYwHRDsFsRxo6U3aH0LpfeHUrPwugPMd94mA</recordid><startdate>20240901</startdate><enddate>20240901</enddate><creator>Udosen, Ndifreke I.</creator><creator>George, Nyakno J.</creator><general>IWA Publishing</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QH</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H96</scope><scope>H97</scope><scope>L.G</scope><orcidid>https://orcid.org/0000-0003-3739-1757</orcidid></search><sort><creationdate>20240901</creationdate><title>Evaluation of specific retention, specific yield, and storage-dependent drainability efficiency in a coastal milieu via geo-electrical technology</title><author>Udosen, Ndifreke I. ; George, Nyakno J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c150t-419d32d9bdbcf953da753939b7b7c4e01e88c93b4098d1bf7e7b28134a579e9f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Anniversaries</topic><topic>Aquifer characteristics</topic><topic>Aquifer testing</topic><topic>Aquifers</topic><topic>Conductivity</topic><topic>Contamination</topic><topic>Drainage</topic><topic>Efficiency</topic><topic>Electrical resistivity</topic><topic>Flow velocity</topic><topic>Groundwater</topic><topic>Hydraulics</topic><topic>Lithology</topic><topic>Permeability</topic><topic>Pumping</topic><topic>Pumping tests</topic><topic>Rain</topic><topic>Retention</topic><topic>Sand</topic><topic>Soundings</topic><topic>Specific retention</topic><topic>Specific yield</topic><topic>Surveys</topic><topic>Tomography</topic><topic>Topsoil</topic><topic>Transmissivity</topic><topic>Water resources</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Udosen, Ndifreke I.</creatorcontrib><creatorcontrib>George, Nyakno J.</creatorcontrib><collection>CrossRef</collection><collection>Aqualine</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Water practice and technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Udosen, Ndifreke I.</au><au>George, Nyakno J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Evaluation of specific retention, specific yield, and storage-dependent drainability efficiency in a coastal milieu via geo-electrical technology</atitle><jtitle>Water practice and technology</jtitle><date>2024-09-01</date><risdate>2024</risdate><volume>19</volume><issue>9</issue><spage>3654</spage><epage>3675</epage><pages>3654-3675</pages><issn>1751-231X</issn><eissn>1751-231X</eissn><abstract>The aim of this research was the application of geo-electrical technology in the determination of specific retention, specific yield, and storage-dependent drainability efficiency within a major coastal milieu in Nigeria. This improves on past work where expensive and time-intensive pumping tests were employed to determine specific retention and specific yield. In addition to the determination of these key aquifer geo-kinetic properties, other important aquifer characteristics such as aquifer potentiality, protectivity, and vulnerability to contamination within this major coastal system were determined. Geo-electrical technology employed Wenner and Schlumberger arrays to undertake Vertical Electrical Soundings (VES) and Electrical Resistivity Tomography (ERT) surveys and results obtained were constrained by ground truth from lithological logs. Results from the electrical resistivity surveys indicated that the lithological strata comprised motley topsoil, coarse sand, fine sand, and sandy clay. Measures of specific yield and specific retention were generated as secondary geo-electrical indices. Specific yield intersected with specific retention at 73% storage-dependent drainability efficiency (SDE), indicating that this percentage must be exceeded for optimal groundwater extraction from the rock matrix's pore spaces during pumping. Aquifer transmissivity measures indicated high aquifer potentiality; longitudinal conductance measures indicated poor aquifer protectivity implying increased vulnerability of the aquifer to contamination.</abstract><cop>London</cop><pub>IWA Publishing</pub><doi>10.2166/wpt.2024.208</doi><tpages>22</tpages><orcidid>https://orcid.org/0000-0003-3739-1757</orcidid></addata></record> |
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| ispartof | Water practice and technology, 2024-09, Vol.19 (9), p.3654-3675 |
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| source | DOAJ Directory of Open Access Journals; EZB-FREE-00999 freely available EZB journals |
| subjects | Anniversaries Aquifer characteristics Aquifer testing Aquifers Conductivity Contamination Drainage Efficiency Electrical resistivity Flow velocity Groundwater Hydraulics Lithology Permeability Pumping Pumping tests Rain Retention Sand Soundings Specific retention Specific yield Surveys Tomography Topsoil Transmissivity Water resources |
| title | Evaluation of specific retention, specific yield, and storage-dependent drainability efficiency in a coastal milieu via geo-electrical technology |
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