Preprint Review Version 1 Preserved in Portico This version is not peer-reviewed

A Critical Review of Climate Change Impacts on Groundwater Resources: A Focus on Current Status, Future Possibilities, and Role of Simulation Models

Davamani Veeraswamy
,
Joseph Ezra John
ORCID logo ,
Poornachandhra Chidamparam
ORCID logo ,
Gopalakrishnan Boopathi
,
Arulmani Subramanian
ORCID logo ,
Parameswari Ettiyagounder
ORCID logo ,
Anandhi Santhosh
,
Asadi Srinivasulu
,
Alvin Lal
* ,
Ravi Naidu
*
Version 1 : Received: 16 December 2023 / Approved: 18 December 2023 / Online: 18 December 2023 (10:40:18 CET)

A peer-reviewed article of this Preprint also exists.

Davamani, V.; John, J.E.; Poornachandhra, C.; Gopalakrishnan, B.; Arulmani, S.; Parameswari, E.; Santhosh, A.; Srinivasulu, A.; Lal, A.; Naidu, R. A Critical Review of Climate Change Impacts on Groundwater Resources: A Focus on the Current Status, Future Possibilities, and Role of Simulation Models. Atmosphere 2024, 15, 122. Davamani, V.; John, J.E.; Poornachandhra, C.; Gopalakrishnan, B.; Arulmani, S.; Parameswari, E.; Santhosh, A.; Srinivasulu, A.; Lal, A.; Naidu, R. A Critical Review of Climate Change Impacts on Groundwater Resources: A Focus on the Current Status, Future Possibilities, and Role of Simulation Models. Atmosphere 2024, 15, 122.

Abstract

The Earth's water resources, totaling 1.386 billion cubic kilometers, predominantly consist of saltwater in oceans. Groundwater, plays a pivotal role, with 99% of usable freshwater supporting 1.5–3 billion people as drinking water source and 60–70% for irrigation. Climate change, with temperature increase and altered precipitation patterns, directly impacts groundwater systems, affecting recharge, discharge, and temperature. Hydrological models are crucial for assessing climate change effects on groundwater, aiding in management decisions. Advanced hydrological models, incorporating data assimilation and improved process representation, contribute to understanding complex systems. Recent studies, employ numerical models to assess climate change impacts on groundwater recharge that could help in management of Groundwater. Groundwater vulnerability assessments vary with the spatial and temporal considerations, as well as assumptions in modelling groundwater susceptibility. The review assesses the vulnerability of groundwater to climate change and stresses the importance of accurate assessments for sustainable water resource management. It highlights challenges in assumptions related to soil and aquifer properties, multiple stressors, adaptive capacity, topography, aquifer properties, and groundwater contamination processes and gradual sea level rise scenarios and realistic representations of the region of study. The advancements in hydrological modelling, including the integration of uncertainty quantification and remote sensing data, artificial intelligence, could assist in the efforts to improve models for assessing the impacts of climate change on hydrological.

Keywords

Climate Change; Groundwater; Hydrological Models; Model Calibration

Subject

Environmental and Earth Sciences, Environmental Science

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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