Inner Core Experiments: Teleseismic exploration of the antipode



A seismic experiment at the antipode of a nuclear test will yield high resolution data for the inner core, outer core, and core-mantle boundary of the earth that are not obtainable at any other place on the earth's surface. The antipode to the Nevada test site lies 180° opposite in the Crozet basin of the Southwest Indian Ocean between Madagascar and the Kerguelen Islands. An ocean bottom seismometer (OBS) array deployment at the antipode is feasible with present-day navigation and technology. Current seismic wave propagation techniques can handle the analysis and modeling of data from an antipode experiment. The primary impediments of an antipode experiment are threefold:

  • security of nuclear tests,
  • ship scheduling,
  • funding coordination

. Although difficulties are presented by each, they can be overcome.