{"thcode":61,"term":{"code":5,"name":"changes in relative sea level","parent":4,"scope":"observed changes in sea level caused by 1) an increase or decrease in the volume of ocean water or 2) uplift or subsidence of the coast."},"uf":[],"bt":[{"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":[{"code":6,"name":"compactional subsidence","parent":5,"scope":"local subsidence of the coast caused by expulsion or extraction of subsurface fluids from porous earth materials."},{"code":7,"name":"global changes in relative sea level","parent":5,"scope":"worldwide changes in sea level caused by an increase or decrease in the volume of ocean water."},{"code":8,"name":"local changes in relative sea level","parent":5,"scope":"local changes in sea level caused by 1) uplift or subsidence of the coast or 2) transitory phenomena such as storm surge."},{"code":9,"name":"tectonic subsidence","parent":5,"scope":"local changes in sea level caused by crustal processes that depress the coast."},{"code":10,"name":"tectonic uplift","parent":5,"scope":"local changes in sea level caused by crustal processes that elevate the coast."}],"rt":[]}