{"thcode":2,"term":{"code":513,"name":"groundwater","parent":1308,"scope":"All water that exists beneath the land surface, but more commonly applied to water in fully saturated soils and geologic formations."},"uf":[{"name":"freshwater (ground)","usewith":false},{"name":"ground water","usewith":false},{"name":"ground-water","usewith":false},{"name":"water subsurface","usewith":false}],"bt":[{"code":1308,"name":"water resources","parent":777,"scope":"Stocks of water, the liquid derived from precipitation. A constituent of living matter and necessity for all life, it covers a large proportion of the earth's surface."},{"code":777,"name":"natural resources","parent":1174,"scope":"Stocks of anything naturally occurring that have a beneficial use for man including economic, nutritional, recreational, aesthetic, and other benefits."},{"code":1174,"name":"topics","parent":1,"scope":"Themes, subjects, and concerns for which USGS information resources are relevant."},{"code":1,"name":"Categories","parent":null,"scope":"Thematic terms for categorizing information resources.  This thesaurus is intended to support finding and understanding scientific information."}],"nt":[{"code":1344,"name":"groundwater level","parent":513,"scope":"Depth in a well or aquifer at which groundwater occurs."}],"rt":[{"code":419,"name":"freshwater ecosystems","parent":54,"scope":"Biological communities and habitats that exist in lakes, rivers, ponds, and other bodies of water that are not salty."},{"code":514,"name":"groundwater flow","parent":1667,"scope":"Movement of subsurface water in the saturated zone from areas of recharge to areas of discharge."},{"code":518,"name":"groundwater quality","parent":1306,"scope":"Fitness of subsurface water for use based on its composition and properties."},{"code":554,"name":"hydrogeology","parent":464,"scope":"Study of subsurface waters and geologic aspects of surface waters."}]}