Identification of Surface and Groundwater Interaction by Isotopic Hydrological Study - A Critical Review for Kelambakkam Region, Chennai, India
2023
Surendar Natarajan
Due to the increase in population and urbanization, the availability of freshwater with standard quality to the human population is of great challenge. Recently there has been a demand for fresh water in surface and groundwater, so it is necessary to go for advanced isotopic techniques for identifying surface and groundwater resources. Isotopes are atoms of elements having the same atomic and different mass numbers. The isotopes found their wider application in water resources-related problems. The isotopes in water resources proved to be an effective tool in solving many critical hydrologic problems where conventional methods cannot be used due to their limitations. This research article discusses isotope application in water resources and focuses on different types of stable and unstable isotopes and their applications at Global and National levels. The methodology and research steps are proposed based on research gaps identified through various literature studies. The study will be conducted in the Kelambakkam zone, south of Chennai sub-urban. This research paper will discuss the sequential steps in identifying recharge and discharge mechanisms in study zones through stable isotopic techniques. The hydro-chemical analysis will also be done by measuring water quality in the Kelambakkam zone. The electrical resistivity survey for aquifer mapping will also be developed to identify the groundwater recharge zones. The proposed study will give complete information about recharge and discharge in the study area and recommend suitable groundwater harvesting structures.
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