Big Ice

Total Antarctic Ice Sheet Discharge: an IPY Benchmark Data Set

Summary

We are employing new remote sensing methods applied to multiple satellite data sets to measure the total discharge of ice from the grounded Antarctic Ice Sheet. This effort also will provide the most comprehensive mapping ever of the grounding line position, as well as ice thickness and velocity along and in the vicinity of the grounding line. These products are sensitive indicators of changes and will serve as benchmark data sets of the International Polar Year suitable for subsequent comparisons to identify and quantify future changes in the ice sheet. An international team of student analysts and professional mentors are using standardized methods to accomplish the grounding line mapping. The UW contribution will provide a complete map of velocity at the grounding line.