{"thcode":2,"term":{"code":170,"name":"climatology","parent":68,"scope":"Scientific study of the characteristic weather conditions of geographic areas."},"uf":[],"bt":[{"code":68,"name":"atmospheric sciences","parent":291,"scope":"Studies relating to composition, structure, physics, chemistry, and dynamics of the atmosphere."},{"code":291,"name":"earth sciences","parent":1019,"scope":"Broad term for all science related to the study of the earth."},{"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":[],"rt":[{"code":168,"name":"climate change","parent":63,"scope":"Long-term alteration in the characteristic weather conditions of a region, such as changes in precipitation and temperature."},{"code":246,"name":"desertification","parent":168,"scope":"The alteration of arable land to dry, barren land due to prolonged drought or the deleterious effects of human intervention including overgrazing, overpopulation, or destructive agricultural practices."},{"code":731,"name":"meteorology","parent":68,"scope":"Branch of science dealing with the short-term variations of atmospheric conditions including wind, precipitation, temperature, humidity, cloud cover, and air pressure."},{"code":812,"name":"ocean circulation","parent":816,"scope":"Movement of large masses of water within an ocean."},{"code":1028,"name":"sea-level change","parent":810,"scope":"Variation in the relative vertical position of land and ocean waters. Caused globally by changes in the distribution of ice masses and the shape of the oceans, and locally by the rate of uplift or subsidence of the land surface.  Includes both global (eustatic) and local (relative) sea-level variations."}]}