Making groundwater recharge and discharge estimate maps in one day: An ArcGIS 9.2 application for water resources research

Water moves on, above, and below the earth's surface changing state from liquid to vapor to ice. This continuous movement is known as the water cycle or hydrologic cycle. The importance of understanding recharge and discharge processes within the hydrologic cycle has led the National Research Council (NRC) to characterize research on these processes as a critical national research priority. NRC is part of the private, nonprofit institution that provides science, technology, and health policy advice to improve government decision making; increase public education; and better the understanding of science, engineering, technology, and health. The authors have developed a GIS-based tool for better the understanding these processes.