title: Bringing GRACE Down to Earth.
authors.forename: William M
authors.initials: WM
authors.lastname: Alley
authors.affiliation: Scientist Emeritus, U.S. Geological Survey, Reston, VA.
authors.forename: Leonard F
authors.initials: LF
authors.lastname: Konikow
mesh_terms: D003247:Conservation of Natural Resources; D004784:Environmental Monitoring; D060587:Groundwater; D058998:Remote Sensing Technology; D014881:Water Supply / Q000706:statistics & numerical data*