WAIS in ANDRILL Future Planning Frank R. Rack, David Harwood, Steve Fischbein ANDRILL Science Management Office University of Nebraska-Lincoln

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Presentation transcript:

WAIS in ANDRILL Future Planning Frank R. Rack, David Harwood, Steve Fischbein ANDRILL Science Management Office University of Nebraska-Lincoln and the ANDRILL Science Committee (ASC)

Survey Completed in 2007 Survey Planned for 2008 Future Surveys Pending CH Proposal in 2008

Slide Courtesy of Chris Fielding (UNL)

Conway et al., 1999 Science v. 286 Ross Ice Shelf Grounding Line Position Since Last Glacial Max. Coulman High Proposed Site

ANDRILL Program Ross Embayment Portfolio Coulman High Project Central Ross Sea Project Eastern Ross Sea Project Conceptual Approach to a Ross Ice Shelf Portfolio Prepared Proposal for Submission in June 2008 Develop Site Survey Proposal for Submission

Slide Provided by L. De Santis ANTOSTRAT Isopach Map of Depth of RSU-5

Correlation Paths between DSDP Sites, Coulman High and VLB

Coulman High Project Airborne Radar Survey Seismic Data Processing Seismic Data Acquisition Conceptual Approach to a Coulman High Project Current Meter Mooring ROV Evaluation + Development HWD System Test Riser Modeling Scenarios

Drilling from a moving ice shelf Alex Pyne Relative motion creates bending stress in drill string Time one Time two

Oceanographic Moorings Single Mooring Multiple Moorings Modeling of Riser Other Potential Scientific Outcomes Access hole through the ice shelf ROV deployments Benthic Ecology Water Column Profiling Surface Sediment Sampling Long-term Deployment of Instruments Southern Ocean Observing System

Bay of Whales SHALDRIL-III Proposed Drill Sites

Slide courtesy of Julia Smith-Wellner SHALDRIL I & II Expeditions on the Nathaniel B. Palmer

SHALDRIL-III - Eastern Ross Sea Proposed Sites Luyendyk, et al (NSF proposal, submitted)

Site #LatitudeLongitudeWater Depth AND-02A o S o E 725 m AND-02B o S o E 694 m AND-02C o S o E 602 m AND-02D o S o E 658 m AND-02E o S o E 667 m AND-02F o S o E 569 m AND-02G o S o E 488 m AND-02H o S o E 246 m AND-02I o S o E 670 m SHALDRIL-III Proposed Sites Luyendyk, et al (NSF proposal, submitted)