{"thcode":61,"term":{"code":734,"name":"geophysics","parent":639,"scope":"physics applied to the study of the Earth."},"uf":[],"bt":[{"code":639,"name":"discipline","parent":1,"scope":null},{"code":1,"name":"Marine Realms Information Bank (MRIB) keyword categories","parent":null,"scope":null}],"nt":[{"code":735,"name":"geodesy","parent":734,"scope":"the study of Earth's shape, dimensions, and gravitational field."},{"code":736,"name":"geomagnetism","parent":734,"scope":"the study of the behavior and variation of Earth's magnetic field."},{"code":738,"name":"marine geophysics","parent":734,"scope":"used for geophysical and related studies of ocean basins and margins."},{"code":739,"name":"seismology","parent":734,"scope":"the study of earthquakes and the transmission of seismic waves."},{"code":740,"name":"tectonophysics","parent":734,"scope":"physics applied to the study of tectonic deformation."}],"rt":[{"code":418,"name":"gravimetry","parent":400,"scope":"measurement of the gravitational field at specific locations, yielding data that can be analyzed for a variety of scientific purposes."},{"code":419,"name":"heat flow observations","parent":400,"scope":"measurement of the dissipation of internal heat at the Earth's surface."},{"code":478,"name":"seismic methods","parent":400,"scope":"the study of naturally occurring or artificially induced seismic waves, generally for one of two purposes: 1) understanding the nature and cause of seismic activity (e.g., earthquakes), or 2) understanding the properties of the earth materials through which the seismic waves have passed."}]}