Application of Electrical Resistivity Tomography for Groundwater Exploration in a Coastal Region

Project Abstract

This research project explores the application of Electrical Resistivity Tomography (ERT) as a geophysical method for groundwater exploration in a coastal region. The study area is characterized by complex geological conditions, including the presence of saline water intrusion and varying subsurface structures. The main objective of this research is to assess the effectiveness of ERT in mapping groundwater resources and delineating potential freshwater zones in the coastal area. The research begins with a comprehensive introduction providing background information on the importance of groundwater exploration in coastal regions, highlighting the challenges posed by saltwater intrusion and the need for advanced geophysical techniques like ERT. The problem statement identifies the current limitations of conventional groundwater exploration methods and emphasizes the significance of adopting ERT for enhanced subsurface imaging. The objectives of the study are outlined to include the mapping of groundwater resources, identification of freshwater zones, and assessment of subsurface structures using ERT technology. The research methodology involves a detailed literature review to establish the theoretical foundation of ERT applications in hydrogeological studies. The study also incorporates field data collection through ERT surveys conducted in the coastal region. The findings from the ERT surveys are analyzed and discussed in Chapter Four, focusing on the interpretation of resistivity data to map subsurface geological features and delineate potential groundwater reservoirs. The discussion includes the challenges encountered during data acquisition and processing, as well as the interpretation of results to identify freshwater-saltwater interfaces and potential aquifer zones. The conclusion of the research project summarizes the key findings and highlights the significance of ERT in groundwater exploration in coastal regions. The study demonstrates the utility of ERT as a non-invasive and cost-effective method for mapping subsurface structures and identifying potential freshwater resources in areas prone to saltwater intrusion. Overall, this research contributes to the advancement of geophysical techniques for groundwater exploration and provides valuable insights for sustainable water resource management in coastal regions. The findings of this study have practical implications for policymakers, hydrogeologists, and environmental practitioners involved in water resource assessment and management in coastal areas. Keywords Electrical Resistivity Tomography, Groundwater Exploration, Coastal Region, Saltwater Intrusion, Aquifer Mapping, Geophysical Survey, Hydrogeology.

Project Overview

The project topic "Application of Electrical Resistivity Tomography for Groundwater Exploration in a Coastal Region" focuses on the utilization of electrical resistivity tomography (ERT) as a geophysical method to investigate and map groundwater resources in coastal regions. Coastal areas are often characterized by complex hydrogeological settings, influenced by factors such as saltwater intrusion, geological heterogeneity, and varying water table depths. Understanding the distribution and behavior of groundwater in these regions is crucial for sustainable water resource management and environmental protection. Electrical resistivity tomography is a non-invasive geophysical technique that measures the subsurface electrical resistivity to delineate geological structures and identify groundwater resources. By applying ERT surveys in coastal regions, researchers can generate high-resolution images of the subsurface, revealing variations in resistivity associated with changes in lithology, presence of groundwater, and potential saltwater intrusion. The research aims to address the following key objectives: 1. Investigate the application of ERT for mapping groundwater resources in a coastal region. 2. Assess the effectiveness of ERT in characterizing subsurface geology and detecting potential saltwater intrusion. 3. Evaluate the limitations and challenges of using ERT in coastal hydrogeological studies. 4. Provide recommendations for optimizing ERT surveys for groundwater exploration in coastal areas. The study will be conducted in a selected coastal region known for its complex hydrogeological conditions. ERT surveys will be carried out at various locations to capture the subsurface resistivity distribution and interpret the data to map groundwater resources. Field observations, laboratory analyses, and geospatial mapping techniques will be employed to validate the ERT results and enhance the understanding of the hydrogeological setting. The significance of this research lies in its potential to contribute valuable insights to the field of groundwater exploration and coastal hydrogeology. By employing ERT as a geophysical tool, researchers can overcome the limitations of traditional drilling methods and gain a more comprehensive understanding of the subsurface environment. The findings of this study are expected to aid in sustainable water resource management, groundwater protection, and mitigation of saltwater intrusion in coastal regions. In conclusion, the "Application of Electrical Resistivity Tomography for Groundwater Exploration in a Coastal Region" project represents a significant contribution to the field of geophysics and hydrogeology. By integrating geophysical methods with hydrogeological investigations, this research aims to enhance the mapping and characterization of groundwater resources in coastal areas, ultimately supporting informed decision-making for water resource management and environmental conservation.