University of Washington
Earth and Space Sciences
Supporting Stations: McMurdo Station
Research Locations: Roosevelt Island
This international ice core drilling project on Roosevelt Island is a partnership with Antarctica New Zealand (ANZ), the UK, Denmark, Germany, and China. Researchers seek to understand past, present, and future environmental changes in the Ross Sea sector of West Antarctica. The scientific objectives are to determine histories of climate and ice thickness for Roosevelt Island and to develop an updated model of the configuration and thickness of the ice in the Ross Sea Embayment during the last glacial maximum.
Field Season Overview:
Last season the New Zealand partners completed drilling a 763-meter ice core to the bed. After drilling was complete, efforts by collaborators to get to the island to conduct borehole logging and repeat measurements of vertical position of internal layers were thwarted by bad weather. During the coming season, two field team members will make another attempt to reach the island, at which time they will: (1) remeasure internal layers using BAS phase-sensitive radar to calculate vertical velocities. These measurements will give a direct estimate of thinning; (2) log the borehole (profiles of temperature, sonic velocity and optical stratigraphy).
Deploying Team Members:
Howard Conway (PI)
Robert Hawley (Co-PI)