{"thcode":2,"term":{"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."},"uf":[{"name":"hydrosphere","usewith":false},{"name":"water pollution","usewith":{"code":769,"name":"contamination and pollution","parent":1174,"scope":"Introduction of harmful substances into the environment by human action or natural processes."}}],"bt":[{"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":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."},{"code":1124,"name":"surface water (non-marine)","parent":1308,"scope":"Open bodies of water, such as lakes, rivers, or streams.  All non-marine waters on the  surface of the earth, including fresh, brackish, and salt water."}],"rt":[{"code":554,"name":"hydrogeology","parent":464,"scope":"Study of subsurface waters and geologic aspects of surface waters."},{"code":560,"name":"hydrology","parent":291,"scope":"Branch of earth science that deals with water as it occurs in the atmosphere, on the surface of the ground, and underground."},{"code":657,"name":"limnology","parent":291,"scope":"Scientific study of the physical and biological characteristics of inland bodies of water such as lakes and ponds."},{"code":810,"name":"ocean characteristics","parent":287,"scope":"The attributes and process of seas and oceans."},{"code":2270,"name":"produced water","parent":1723,"scope":"Water produced during generation and development of energy resources, particularly hydrocarbons, as well as related fluids injected into reservoirs for energy development and associated waste disposal."}]}