The basic goal of this research group is to measure, predict, and understand the flow of water through the soil and rock between the land surface and the water table, known as the unsaturated or vadose zone. Many large-scale problems – water quality, water supply and availability, natural aquifer recharge and artificial recharge, impacts of climate change, sustainable food production, and extreme events such as floods and drought – require knowledge of the unsaturated-zone dynamics of water and substances it carries. We develop laboratory and field experiments, as well as theoretical models, that advance unsaturated-zone knowledge and problem-solving ability at locations covering a wide range of climate, geology, soils, hydrology, vegetation, and land use.
Areas of Investigation
Aquifer recharge, deep percolation, and water-table interactions
Tools for Aquifer Recharge and Related Investigations