{"thcode":2,"term":{"code":291,"name":"earth sciences","parent":1019,"scope":"Broad term for all science related to the study of the earth."},"uf":[{"name":"geosciences","usewith":false}],"bt":[{"code":1019,"name":"sciences","parent":1,"scope":"Major educational fields, fields of study, and professional groupings within USGS."},{"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":68,"name":"atmospheric sciences","parent":291,"scope":"Studies relating to composition, structure, physics, chemistry, and dynamics of the atmosphere."},{"code":437,"name":"geochemistry","parent":291,"scope":"Study of the distribution of chemical elements and natural compounds on the earth and in the atmosphere and the chemical processes that affect the earth."},{"code":447,"name":"geography","parent":291,"scope":"Study of the earth's landforms, topography, and climate, the distribution of flora and fauna, and the distribution, culture, and activities of human populations."},{"code":464,"name":"geology","parent":291,"scope":"Study of the planet earth, its composition, structure, physical and chemical processes, and history since its origin."},{"code":470,"name":"geophysics","parent":291,"scope":"Branch of geology studying the physical characteristics and phenomena of the earth and its atmosphere."},{"code":484,"name":"glaciology","parent":291,"scope":"Science dealing with the features, origins, processes, and properties of snow, ice, glaciers, and ice sheets."},{"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":818,"name":"ocean sciences","parent":291,"scope":"Sciences involved in the study of geological, biological, chemical, and physical characteristics and processes of the oceans."},{"code":861,"name":"paleontology","parent":291,"scope":"Study of life in past geologic time based on fossil plants and animals."},{"code":1081,"name":"soil sciences","parent":291,"scope":"Earth sciences dealing with the origin, classification, physical, chemical, and biological properties of soils."}],"rt":[{"code":287,"name":"earth characteristics","parent":1174,"scope":"The measurable, definable properties and features of the earth."},{"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":1020,"name":"scientific careers","parent":1174,"scope":"Professions in which people carry out or support scientific research or monitoring."}]}