Geosciences
Climate models This graphic shows various ways that water can reach and recharge a groundwater aquifer: precipitation that percolates directly down into the aquifer; recharge from streams or runoff; water … Read More
The nature of subsurface materials strongly influences the rate of groundwater movement and the amount of groundwater that can be stored. Two factors are especially important: porosity and permeability. Porosity … Read More
Some of the water that soaks in does not travel far because it is held by molecular attraction as a surface film on soil particles. This near-surface zone is called … Read More
