Groundwater recharge - Wikipedia
Groundwater recharge or deep drainage or deep percolation is a hydrologic process, where water moves downward from surface water to groundwater. Recharge is the primary method through which water enters an aquifer. This process usually occurs in the vadose zone below plant roots and is often expressed as a flux to the water table surface.
Artificial Groundwater Recharge | U.S. Geological Survey - USGS.gov
2019年3月1日 · One method of controlling declining water levels is by using artificial groundwater recharge. The USGS monitors wells to evaluate the effect of groundwater depletion and recharge, and provides vital information to those who depend on groundwater resources.
Groundwater: What is Groundwater? | U.S. Geological Survey - USGS.gov
2018年11月6日 · The part that continues downward through the soil until it reaches rock material that is saturated is groundwater recharge. Water in the saturated groundwater system moves slowly and may eventually discharge into streams, lakes, and oceans.
Groundwater Recharge - an overview | ScienceDirect Topics
Groundwater recharge is the water flux across the water table feeding the aquifer (Figs. 3.2 and 3.3). Groundwater recharge, I, or precipitation recharge, is also called direct recharge to distinguish from indirect recharge, which is water that flows from a river into the aquifer (Box 3.1).
Groundwater & Aquifers - Utah Geological Survey
Confining layers can pressurize aquifers by trapping water that is recharged at a higher elevation underneath the confining layer, allowing for a potentiometric surface higher than the top of the aquifer, and sometimes higher than the land surface.
The changing nature of groundwater in the global water cycle
Climate-driven modifications include shifts in groundwater recharge rate across continents, increased groundwater contributions to streamflow in glacierized catchments, and profound alterations in groundwater flow patterns within permafrost areas.
Infiltration and the Water Cycle | U.S. Geological Survey - USGS.gov
2019年6月8日 · Some of the water may infiltrate deeper, recharging groundwater aquifers. If the aquifers are porous enough to allow water to move freely through it, people can drill wells into the aquifer and use the water for their purposes.
Groundwater recharge is sensitive to changing long-term aridity
2024年3月12日 · Recharge is most sensitive to climate changes in regions where potential evapotranspiration slightly exceeds precipitation, meaning even modest aridification can substantially decrease groundwater...
Enhancing Groundwater Recharge Prediction : Hydrological …
Groundwater recharge is a highly nonlinear process, and ensemble models are well‐suited to effectively establish nonlinear relationships between input and output variables. Ensemble models can offer greater stability in model performance and achieve higher prediction accuracy. Consequently, they are being increasingly used to predict ...
Groundwater Recharge - an overview | ScienceDirect Topics
Groundwater recharge is the result of an intricate relationship between energy and moisture occurring in the critical zone between the atmosphere and subsurface. The recharge process governs downward fluid flux across the water table, and relates the climate, vegetation, and subsurface characteristics for a given area.