Groundwater Monitoring, Assessment and Modelling

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Hydrogeology".

Deadline for manuscript submissions: 31 July 2024 | Viewed by 1022

Special Issue Editor


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Guest Editor
Soil and Water Resources Institute, Hellenic Agricultural Organization, Gorgopotamou Str., Sindos, 57400 Thessaloniki, Greece
Interests: groundwater chemistry and hydrology; high frequency monitoring; data driven irrigation management
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Special Issue Information

Dear Colleagues,

Groundwater is progressively becoming of utmost importance as strategic reserves due to its inherently better protection against climate change-driven extreme events like droughts or floods. However, sustainable management and safe utilisation by end-users require in-depth knowledge of the status of such reserves and their evolution, which may only be achieved through detailed and systematic long-term monitoring. Through the results of these monitoring activities, reliable assessments can be made and credible modelling tools can be compiled to study the response of the system under alternative climatic and management scenarios. 

Reviews, novel methods, integrated approaches, breakthrough technologies, and success stories related to groundwater monitoring, assessment, or modelling are welcome in this Special Issue. Successful papers should be novel, appealing, and scientifically sound and should aim to inspire the global scientific society, which will ideally adopt the proposed methods and tools.

Dr. Andreas Panagopoulos
Guest Editor

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Water is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • quality
  • quantity
  • flow and transport
  • big data
  • novel assessment methods
  • conventional and high-frequency data management
  • risk management

Published Papers (2 papers)

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Research

21 pages, 4862 KiB  
Article
Groundwater Recharge Assessment in Central Benin: The Case of the Collines Region (West Africa)
by Kodjo Apelete Raoul Kpegli, Firmin Adandedji, Cintia Ahouandogbo, Metogbe Belfrid Djihouessi, Jean Hounkpe, Yèkambèssoun N’Tcha M’Po, Aymar Yaovi Bossa, Abdoukarim Alassane, Luc Olivier Sintondji, Daouda Mama and Moussa Boukari
Water 2024, 16(10), 1330; https://doi.org/10.3390/w16101330 - 7 May 2024
Viewed by 401
Abstract
The objective of this study was to assess groundwater recharge in the hard-rock central region of Benin so as to compare it with the water needs of the local population. To reach this objective, we applied the Water Table Fluctuation (WTF) method, which [...] Read more.
The objective of this study was to assess groundwater recharge in the hard-rock central region of Benin so as to compare it with the water needs of the local population. To reach this objective, we applied the Water Table Fluctuation (WTF) method, which requires long-term monitoring of groundwater level fluctuations. Groundwater level time series were used in combination with other data (including time series of surface water discharge and rainfall) to estimate groundwater recharge but also to shed further light on the relationship between surface water and groundwater. The results demonstrated that the minimum inter-annual groundwater recharge amount is about 1.09 × 109 m3, which is enough to cover the basic water needs of the local population. It should be highlighted that in sub-regions where the density of the population is high, water shortage can still occur with the above estimated groundwater recharge amount. This study has also illustrated that when applying the WTF method, sites with a highly uncertain specific yield can be detected. Full article
(This article belongs to the Special Issue Groundwater Monitoring, Assessment and Modelling)
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21 pages, 7172 KiB  
Article
Verification of Particle Tracking and In Situ Tracer Experiment for the Gravel and Cholan Formation Composite in Northwest Taiwan
by Cong-Zhang Tong, Pin Yeh, Yun-Chen Yu, Liang-Gu Chen and Han-Hsiang Tseng
Water 2024, 16(8), 1101; https://doi.org/10.3390/w16081101 - 11 Apr 2024
Viewed by 490
Abstract
This paper presents the verification results of an experimental site that employed a particle tracking algorithm to assess the transport of tracers through the composite formation of gravel and Cholan in northwest Taiwan. A suitable hydrogeological conceptual model that describes the flow characteristics [...] Read more.
This paper presents the verification results of an experimental site that employed a particle tracking algorithm to assess the transport of tracers through the composite formation of gravel and Cholan in northwest Taiwan. A suitable hydrogeological conceptual model that describes the flow characteristics of the gravel formation and Cholan formation is essential to evaluate groundwater flow and management at this site. Continuous porous medium (CPM) can be easily applied in the gravel formation, while the Cholan formation, characterized by argillaceous sandstone, is commonly treated as a porous medium. However, this study obtains its fracture distribution through geological surveys, and the key fracture parameters are also collected, analyzed, and incorporated into the model. Four hydrogeological conceptual models, including CPM, discrete fracture network (DFN), equivalent continuous porous medium (ECPM), and hybrid DFN/ECPM, are generated for this complex formation. This study combines the conceptual models of the gravel and Cholan formation into four cases to describe the characteristics of the composite formation. The groundwater flow field of four cases is simulated, and the particle tracking method is employed to model the tracer transport. Simulation results from the four hybrid models all yielded a breakthrough curve (BTC) for the first 15 h, indicating that the tracer arrived at the designated outlet within this timeframe and primarily flowed through the gravel formation, while long-time particle tracking revealed a possible flow path through the Cholan formation after 15 h. The breakthrough curve of the four cases shows that the ECPM model is more suitable for representing the heterogeneity of the Cholan formation than the common CPM model. This study provides a suitable numerical algorithm of the conceptual model of the Cholan formation based on strong evidence by considering different models and comparing them with in situ tracer tests. Full article
(This article belongs to the Special Issue Groundwater Monitoring, Assessment and Modelling)
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