{"thcode":2,"term":{"code":816,"name":"ocean processes","parent":101,"scope":"Recurrent natural changes that are physical, biological, or chemical, actively affecting the seas and oceans."},"uf":[{"name":"marine sediment transport","usewith":{"code":1034,"name":"sediment transport","parent":451,"scope":"Transport of solid particles of unconsolidated rock and mineral fragments, chemical precipitates, or biological materials."}},{"name":"ocean hazards","usewith":{"code":531,"name":"hazards","parent":1174,"scope":"Potential dangers from both natural processes (e.g., earthquakes, floods, and climate change) and human impacts on the environment."}},{"name":"oceans","usewith":{"code":810,"name":"ocean characteristics","parent":287,"scope":"The attributes and process of seas and oceans."}}],"bt":[{"code":101,"name":"biological and physical processes","parent":1174,"scope":"All continuing activities, functions, and phenomena associated with organisms and non-living matter."},{"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":812,"name":"ocean circulation","parent":816,"scope":"Movement of large masses of water within an ocean."},{"code":814,"name":"ocean currents","parent":816,"scope":"Recurrent strong flows of seawater generated by wind or variations in water density along a given path."},{"code":822,"name":"ocean waves","parent":816,"scope":"A periodic movement of seawater caused by wind, tide, and currents."},{"code":1168,"name":"tides (oceanic)","parent":816,"scope":"The periodic rise and fall of the level of the sea due to the gravitational attraction of the moon and sun. Occurs twice each day."}],"rt":[{"code":707,"name":"marine geophysics","parent":470,"scope":"Branch of earth sciences concerned with the physical processes of the oceans and continental margins.  We include here studies of large bodies of brackish and fresh water, such as lakes and rivers."},{"code":2058,"name":"ocean acidification","parent":435,"scope":"Decrease in the pH of ocean waters as a result of the increase in atmospheric carbon dioxide concentration."},{"code":810,"name":"ocean characteristics","parent":287,"scope":"The attributes and process of seas and oceans."},{"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":823,"name":"ocean-atmosphere interaction","parent":63,"scope":"Processes, including momentum, heat, gas and other exchanges, which result in profound effects on climate and interactions between the air in the lowest part of the atmosphere and the oceans."},{"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."}]}