{"thcode":61,"term":{"code":442,"name":"tidal measurements","parent":437,"scope":"used for all types of tidal observations, including but not limited to tide-gage measurements."},"uf":[],"bt":[{"code":437,"name":"oceanographic observations","parent":400,"scope":"used for field observations related to all aspects of oceanography: physical, chemical, and biological; may also be used for field studies of freshwater bodies that use oceanographic techniques."},{"code":400,"name":"field observation","parent":398,"scope":"scientific investigation of physical or biological features and processes in a natural setting."},{"code":398,"name":"research method","parent":1,"scope":null},{"code":1,"name":"Marine Realms Information Bank (MRIB) keyword categories","parent":null,"scope":null}],"nt":[],"rt":[{"code":754,"name":"physical oceanography","parent":749,"scope":"the study of physical conditions and processes in the oceans."}]}