The Miller Geoecohydrology Research Group is part of the Civil & Environmental Engineering department at Texas A&M University and is led by Associate Professor Gretchen Miller. Our research is highly interdisciplinary and focuses on groundwater sustainability, examining multiple aspects of the connections between the atmosphere, vegetation, soil, and groundwater. Our current work has three main focus areas: 1) determining vegetation water requirements in groundwater dependent ecosystems, as needed to predict plant response to groundwater extraction; 2) improving the representation of hydrological and biogeochemical processes in Earth system models, which are vital to accurately predicting changes to climate and the hydrologic cycle; and 3) examining subsurface processes associated with engineered systems, such as in Managed Aquifer Recharge (MAR) projects and bioretention cells.