Groundwater models are computer simulations that help scientists understand how water moves through underground aquifers. These models use data about soil types, rock formations, and water levels to predict how groundwater will flow and respond to changes, such as rainfall or human activities like pumping. By analyzing these models, researchers can assess the availability of drinking water, the impact of pollution, and the sustainability of water resources. Groundwater models are essential tools for managing water supplies and protecting ecosystems that depend on underground water sources.