Establishing 3D hydrogeological solid model and database for sustainable groundwater management in the Vietnam Mekong delta
The Vietnam Mekong delta (VMD) is a tide-dominated delta formed by the Mekong river system. The sediments are dominantly fine grained and were deposited in the receiving basin with slight inclination of pre-existing deposits in the East sea and gulf of Thailand. The VMD is homeland to about 18 mill...
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| Format: | Article |
| Language: | English |
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Vietnam Ministry of Science and Technology
2022-03-01
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| Series: | Vietnam Journal of Science, Technology and Engineering |
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| Online Access: | https://vietnamscience.vjst.vn/index.php/vjste/article/view/88 |
| _version_ | 1797937755821441024 |
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| author | Vu Thanh Tam Nguyen Ngoc Ha Ho Van Thuy |
| author_facet | Vu Thanh Tam Nguyen Ngoc Ha Ho Van Thuy |
| author_sort | Vu Thanh Tam |
| collection | DOAJ |
| description |
The Vietnam Mekong delta (VMD) is a tide-dominated delta formed by the Mekong river system. The sediments are dominantly fine grained and were deposited in the receiving basin with slight inclination of pre-existing deposits in the East sea and gulf of Thailand. The VMD is homeland to about 18 million people that exploit about 4-6 million m3/day of groundwater mainly for domestic use. In recent years, significant groundwater depletion has been occurring in many parts of the VMD due to excessive pumping. Consequently, the VMD has become increasingly faced with serious land subsidence, salt groundwater intrusion, and contamination. Establishing a 3D hydrogeological solid model and database are sorely needed to achieve sustainable groundwater management, and to serve as a basis for further in-depth analyses to quantify contributions from the above-mentioned hazards to current hydrogeological conditions. Therefore, a 3D hydrogeological solid model and database were built based on more than 1000 well logs available from the VMD. An areal distribution of the Holocene, Pleistocene, Pliocene, and Late Miocene subsurfaces from this 3D hydrogeological solid model and database showed zones of tectonic depression and uplift from Early Miocene - Quaternary. Also, the resulting areal distribution aquitards and aquifers thicknesses gave hints of ground saltwater intrusion and contamination.
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| first_indexed | 2024-04-10T18:49:15Z |
| format | Article |
| id | doaj.art-68863b774cfd47439bac836a731178a1 |
| institution | Directory Open Access Journal |
| issn | 2525-2461 2615-9937 |
| language | English |
| last_indexed | 2024-04-10T18:49:15Z |
| publishDate | 2022-03-01 |
| publisher | Vietnam Ministry of Science and Technology |
| record_format | Article |
| series | Vietnam Journal of Science, Technology and Engineering |
| spelling | doaj.art-68863b774cfd47439bac836a731178a12023-02-01T08:16:54ZengVietnam Ministry of Science and TechnologyVietnam Journal of Science, Technology and Engineering2525-24612615-99372022-03-0163410.31276/VJSTE.63(4).86-94Establishing 3D hydrogeological solid model and database for sustainable groundwater management in the Vietnam Mekong deltaVu Thanh Tam0Nguyen Ngoc Ha1Ho Van Thuy2National Center for Water Resources Planning and Investigation (NAWAPI)National Center for Water Resources Planning and Investigation (NAWAPI)National Center for Water Resources Planning and Investigation (NAWAPI) The Vietnam Mekong delta (VMD) is a tide-dominated delta formed by the Mekong river system. The sediments are dominantly fine grained and were deposited in the receiving basin with slight inclination of pre-existing deposits in the East sea and gulf of Thailand. The VMD is homeland to about 18 million people that exploit about 4-6 million m3/day of groundwater mainly for domestic use. In recent years, significant groundwater depletion has been occurring in many parts of the VMD due to excessive pumping. Consequently, the VMD has become increasingly faced with serious land subsidence, salt groundwater intrusion, and contamination. Establishing a 3D hydrogeological solid model and database are sorely needed to achieve sustainable groundwater management, and to serve as a basis for further in-depth analyses to quantify contributions from the above-mentioned hazards to current hydrogeological conditions. Therefore, a 3D hydrogeological solid model and database were built based on more than 1000 well logs available from the VMD. An areal distribution of the Holocene, Pleistocene, Pliocene, and Late Miocene subsurfaces from this 3D hydrogeological solid model and database showed zones of tectonic depression and uplift from Early Miocene - Quaternary. Also, the resulting areal distribution aquitards and aquifers thicknesses gave hints of ground saltwater intrusion and contamination. https://vietnamscience.vjst.vn/index.php/vjste/article/view/88groundwater extractionsubsurface modellingVietnam Mekong delta |
| spellingShingle | Vu Thanh Tam Nguyen Ngoc Ha Ho Van Thuy Establishing 3D hydrogeological solid model and database for sustainable groundwater management in the Vietnam Mekong delta Vietnam Journal of Science, Technology and Engineering groundwater extraction subsurface modelling Vietnam Mekong delta |
| title | Establishing 3D hydrogeological solid model and database for sustainable groundwater management in the Vietnam Mekong delta |
| title_full | Establishing 3D hydrogeological solid model and database for sustainable groundwater management in the Vietnam Mekong delta |
| title_fullStr | Establishing 3D hydrogeological solid model and database for sustainable groundwater management in the Vietnam Mekong delta |
| title_full_unstemmed | Establishing 3D hydrogeological solid model and database for sustainable groundwater management in the Vietnam Mekong delta |
| title_short | Establishing 3D hydrogeological solid model and database for sustainable groundwater management in the Vietnam Mekong delta |
| title_sort | establishing 3d hydrogeological solid model and database for sustainable groundwater management in the vietnam mekong delta |
| topic | groundwater extraction subsurface modelling Vietnam Mekong delta |
| url | https://vietnamscience.vjst.vn/index.php/vjste/article/view/88 |
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