Exploring what lies beneath the Antarctic ice

Exploring what lies beneath the Antarctic ice

Sridhar Anandakrishnan has completed many seasons of Antarctic research. In December 2006, as he describes in this audio diary, he and his team traveled to Ross Island to search for a body of water that some scientists say lies deep below the surface of the South Pole. By lowering explosives into deep holes, the team recorded rebound sounds through geophones to estimate the distance to the bottom of the ice. The resulting seismic data was used to create cross-section maps of the ice sheets. Anandakrishnan hopes the data will help predict future changes in sea-level and possibly unveil new microscopic organisms.