{"thcode":61,"term":{"code":17,"name":"tidal currents","parent":15,"scope":"episodic currents that occur as sea level rises and falls with the tidal cycle; these currents intensify as they pass through narrow channels separating larger bodies of water (such as the open ocean and a lagoon)."},"uf":[],"bt":[{"code":15,"name":"currents","parent":14,"scope":"used for all ocean currents in the nearshore environment, including longshore, tidal, and rip currents."},{"code":14,"name":"coastal processes","parent":4,"scope":"oceanographic and geologic processes that cause changes to the shoreline and coastal zone."},{"code":4,"name":"natural agents of coastal change","parent":3,"scope":"natural phenomena that cause changes in coastal processes, landscapes, and ecosystems."},{"code":3,"name":"agents of coastal change","parent":2,"scope":"natural phenomena and human activities that cause changes in coastal processes, landscapes, and ecosystems."},{"code":2,"name":"coastal change hazards topics","parent":1,"scope":null},{"code":1,"name":"Marine Realms Information Bank (MRIB) keyword categories","parent":null,"scope":null}],"nt":[],"rt":[{"code":26,"name":"tides","parent":14,"scope":"the cyclic rise and fall of sea level due to gravitational forces and the rotation of the Earth."}]}