skip to main content
Language:
Search Limited to: Search Limited to: Resource type Show Results with: Show Results with: Search type Index

Design of preliminary groundwater monitoring networks for the coastal Tra Vinh province in Mekong Delta, Vietnam

Journal of hydrology. Regional studies, 2023-06, Vol.47, p.101425, Article 101425 [Peer Reviewed Journal]

2023 The Authors ;ISSN: 2214-5818 ;EISSN: 2214-5818 ;DOI: 10.1016/j.ejrh.2023.101425

Full text available

Citations Cited by
  • Title:
    Design of preliminary groundwater monitoring networks for the coastal Tra Vinh province in Mekong Delta, Vietnam
  • Author: Van Tuan, Pham ; Zhou, Yangxiao ; Stigter, Tibor ; Van Tuc, Dang ; Hai, Dao Hong ; Vuong, Bui Tran
  • Subjects: Coastal groundwater ; Groundwater models ; Kriging interpolation ; Monitoring network design ; Saltwater intrusion
  • Is Part Of: Journal of hydrology. Regional studies, 2023-06, Vol.47, p.101425, Article 101425
  • Description: The study region is the coastal Tra Vinh province located in Mekong Delta, Vietnam The objective of the study is to design preliminary monitoring networks for groundwater level and salinity monitoring in the three heavily abstracted aquifers in the Tra Vinh province. Since data from the existing monitoring were insufficient to explore variogram analysis and subsequent Kriging interpolation for the network design, groundwater flow and saltwater transport models were constructed to create groundwater level and salinity distributions. An iterative procedure was adopted to select monitoring well locations based on the contour maps of groundwater levels and total dissolved solids (TDS) constructed from the groundwater models. The standard deviation of Kriging interpolation error was used as the criteria to assess the quality of the designed monitoring networks. Priorities for the locating groundwater level monitoring wells were targeted in areas with cones of depression and boundaries, while priorities for salinity monitoring were given to coastal zone and inland fresh/saltwater interfaces. Groundwater overexploitation has resulted in storage depletion and saltwater intrusion in the Tra Vinh province. Simulations from the numerical models determined the cones of the depression and predicted intrusion from inland saltwater trapped in clays from past marine transgressions and from seawater in the coastal zone. A limited number of monitoring wells is operated and is insufficient to delineate the cone of depression and fresh/salt water interfaces. This study combined the numerical model simulation results and Kriging interpolation method and designed preliminary groundwater level and salinity monitoring networks for the Tra Vinh province. Once the designed networks are implemented, observed data from the networks will provide valuable information for sustainable groundwater resources management in Tra Vinh province. All data generated or analyzed during this study are available upon request from the corresponding author. [Display omitted] •Saltwater intrusion/storage depletion threaten groundwater supply in Mekong Delta.•Lack of systematic measurements hampers early detection of these problems.•Groundwater monitoring networks are designed for coastal Tra Vinh province.•The networks will provide required information for better groundwater management.
  • Publisher: Elsevier B.V
  • Language: English
  • Identifier: ISSN: 2214-5818
    EISSN: 2214-5818
    DOI: 10.1016/j.ejrh.2023.101425
  • Source: DOAJ Directory of Open Access Journals
Back to results list
INSPIRE LIBRARY - TON DUC THANG UNIVERSITY (84-028) 37 755 057 Feedback
19 Nguyen Huu Tho St. Dist.7, HCM thuvien@tdtu.edu.vn

Copyright © 2017 INSPIRE LIBRARY - TON DUC THANG UNIVERSITY

Searching Remote Databases, Please Wait